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To: gcc-patches <gcc-patches@gcc.gnu.org>
From: Martin Sebor <msebor@gmail.com>
Subject: [PATCH] fix more -Wformat-diag issues
Message-ID: <d3b741eb-29ff-2e45-3baf-d4ff7b247929@gmail.com>
Date: Wed, 22 May 2019 10:34:00 -0600
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Incorporating the feedback I got on the -Wformat-diag checker
provided an opportunity to tighten up existing and implement
a small number of few additional rules based on GCC Coding
Conventions (https://gcc.gnu.org/codingconventions.html).
The checker now also warns for incorrect uses of the following:

  *  bitfield (rather than bit-field)
  *  builtin (rather than built-in)
  *  command line (rather than command-line)
  *  enumeral (rather than enumerated)
  *  floating point (rather than floating-point)
  *  non-zero (rather than nonzero)

In addition, it has become better at finding unquoted qualifiers
(like const in const-qualified or "const %qT" rather than %<const
%T%>"), and detects some additional abbreviations (e.g., "stmt"
instead of "statement").

These improvements exposed a number of additional issues in our
sources that the attached patch corrects.

As before, I have tested the patch on x86_64-linux and adjusted
the fallout in the test suite.  More cleanup will likely be needed
on other targets but based on the prior changes I don't expect it
to be extensive.

I will post the patch with the checker implementation separately.

Martin

PS As discussed in the thread below, some of the instances of
added hyphenation in "floating-point" aren't strictly necessary
and the  wording might need to be tweaked a bit to make it so:
   https://gcc.gnu.org/ml/gcc/2019-05/msg00168.html
I'll handle it in a subsequent commit if it's viewed important.

gcc/testsuite/ChangeLog:

	* c-c++-common/nonnull-1.c: Adjust text of expected diagnostic.
	* c-c++-common/nonnull-2.c: Same.
	* c-c++-common/nonnull-3.c: Same.
	* c-c++-common/pr35503-1.c: Same.
	* c-c++-common/pr35503-2.c: Same.
	* c-c++-common/pr35503-3.c: Same.
	* g++.dg/abi/empty12.C: Same.
	* g++.dg/abi/empty13.C: Same.
	* g++.dg/abi/empty14.C: Same.
	* g++.dg/abi/empty15.C: Same.
	* g++.dg/abi/empty16.C: Same.
	* g++.dg/abi/empty17.C: Same.
	* g++.dg/abi/empty18.C: Same.
	* g++.dg/abi/empty19.C: Same.
	* g++.dg/abi/empty22.C: Same.
	* g++.dg/abi/empty25.C: Same.
	* g++.dg/abi/empty26.C: Same.
	* g++.dg/concepts/decl-diagnose.C: Same.
	* g++.dg/conversion/bitfield7.C: Same.
	* g++.dg/cpp0x/addressof2.C: Same.
	* g++.dg/cpp0x/constexpr-condition.C: Same.
	* g++.dg/cpp0x/constexpr-neg1.C: Same.
	* g++.dg/cpp0x/constexpr-object1.C: Same.
	* g++.dg/cpp0x/defaulted2.C: Same.
	* g++.dg/cpp0x/gnu_fext-numeric-literals.C: Same.
	* g++.dg/cpp0x/pr42844-2.C: Same.
	* g++.dg/cpp0x/pr83993.C (foo): Same.
	* g++.dg/cpp0x/std_fext-numeric-literals.C: Same.
	* g++.dg/cpp0x/udlit-shadow-neg.C: Same.
	* g++.dg/cpp1z/inline-var2.C: Same.
	* g++.dg/init/pr42844.C: Same.
	* g++.dg/tree-ssa/pr20280.C: Same.
	* g++.dg/warn/Wfloat-equal-1.C: Same.
	* g++.dg/warn/Wrestrict-1.C: Same.
	* g++.dg/warn/Wrestrict-2.C: Same.
	* g++.dg/warn/nonnull3.C: Same.
	* g++.dg/warn/pr8715.C: Same.
	* g++.old-deja/g++.other/cond5.C: Same.
	* gcc.dg/Wfloat-equal-1.c: Same.
	* gcc.dg/attr-noinline.c: Same.
	* gcc.dg/attr-noipa.c: Same.
	* gcc.dg/attr-weakref-2.c: Same.
	* gcc.dg/cast-1.c (f): Same.
	* gcc.dg/cast-2.c (f): Same.
	* gcc.dg/cast-3.c (f): Same.
	* gcc.dg/dfp/cast-bad.c (f): Same.
	* gcc.dg/dfp/warn-abs-2.c: Same.
	* gcc.dg/enum-mode-1.c: Same.
	* gcc.dg/format/gcc_diag-1.c: Same.
	* gcc.dg/format/gcc_diag-11.c: Same.New test.
	* gcc.dg/funroll-loops-all.c: Same.
	* gcc.dg/misc-column.c: Same.
	* gcc.dg/opts-5.c: Same.
	* gcc.dg/pr28322-2.c: Same.
	* gcc.dg/pr28322-3.c: Same.
	* gcc.dg/pr60087.c (foo): Same.
	* gcc.dg/pr78957.c: Same.
	* gcc.dg/pr8715.c: Same.
	* gcc.dg/simd-2.c (hanneke): Same.
	* gcc.dg/spellcheck-options-1.c: Same.
	* gcc.dg/spellcheck-options-10.c: Same.
	* gcc.dg/spellcheck-options-12.c: Same.
	* gcc.dg/spellcheck-options-13.c: Same.
	* gcc.dg/spellcheck-options-18.c: Same.
	* gcc.dg/spellcheck-options-19.c: Same.
	* gcc.dg/spellcheck-options-2.c: Same.
	* gcc.dg/spellcheck-options-20.c: Same.
	* gcc.dg/spellcheck-options-3.c: Same.
	* gcc.dg/spellcheck-options-4.c: Same.
	* gcc.dg/spellcheck-options-5.c: Same.
	* gcc.dg/spellcheck-options-6.c: Same.
	* gcc.dg/spellcheck-options-7.c: Same.
	* gcc.dg/spellcheck-options-8.c: Same.
	* gcc.dg/spellcheck-options-9.c: Same.
	* gcc.dg/warn-abs-1.c (tst_notint): Same.
	* gcc.target/i386/spellcheck-options-5.c: Same.

diff --git a/gcc/testsuite/c-c++-common/nonnull-1.c b/gcc/testsuite/c-c++-common/nonnull-1.c
index 2446d6fbcfa..ea987365302 100644
--- a/gcc/testsuite/c-c++-common/nonnull-1.c
+++ b/gcc/testsuite/c-c++-common/nonnull-1.c
@@ -8,27 +8,27 @@
 
 void foo(void *bar) __attribute__((nonnull(1)));
 
-void foo(void *bar) { if (!bar) abort(); } /* { dg-warning "nonnull argument" "bar compared to NULL" } */
+void foo(void *bar) { if (!bar) abort(); } /* { dg-warning "'nonnull' argument" "bar compared to NULL" } */
 
 extern int func (char *, char *, char *, char *) __attribute__((nonnull));
 
 int
 func (char *cp1, char *cp2, char *cp3, char *cp4)
 {
-  if (cp1) /* { dg-warning "nonnull argument" "cp1 compared to NULL" } */
+  if (cp1) /* { dg-warning "'nonnull' argument" "cp1 compared to NULL" } */
     return 1;
 
-  if (cp2 == NULL) /* { dg-warning "nonnull argument" "cp2 compared to NULL" } */
+  if (cp2 == NULL) /* { dg-warning "'nonnull' argument" "cp2 compared to NULL" } */
     return 2;
 
-  if (NULL != cp3) /* { dg-warning "nonnull argument" "cp3 compared to NULL" } */
+  if (NULL != cp3) /* { dg-warning "'nonnull' argument" "cp3 compared to NULL" } */
     return 3;
 
-  return cp4 != 0 ? 0 : 1; /* { dg-warning "nonnull argument" "cp4 compared to NULL" } */
+  return cp4 != 0 ? 0 : 1; /* { dg-warning "'nonnull' argument" "cp4 compared to NULL" } */
 }
 
 __attribute__((nonnull (1))) int
 func2 (char *cp)
 {
-  return (cp != NULL) ? 1 : 0; /* { dg-warning "nonnull argument" "cp compared to NULL" { xfail c++ } } */
+  return (cp != NULL) ? 1 : 0; /* { dg-warning "'nonnull' argument" "cp compared to NULL" { xfail c++ } } */
 }
diff --git a/gcc/testsuite/c-c++-common/nonnull-2.c b/gcc/testsuite/c-c++-common/nonnull-2.c
index ebd17a21f03..19574cd1104 100644
--- a/gcc/testsuite/c-c++-common/nonnull-2.c
+++ b/gcc/testsuite/c-c++-common/nonnull-2.c
@@ -7,19 +7,19 @@ void bar (char **);
 __attribute__((nonnull (1, 3))) int
 foo (char *cp1, char *cp2, char *cp3, char *cp4)
 {
-  if (cp1 == (char *) 0) /* { dg-warning "nonnull argument" "cp1 compared to NULL" } */
+  if (cp1 == (char *) 0) /* { dg-warning "'nonnull' argument" "cp1 compared to NULL" } */
     return 1;
 
   cp1 = cp2;
-  if (cp1 == (char *) 0) /* { dg-bogus "nonnull argument" } */
+  if (cp1 == (char *) 0) /* { dg-bogus "'nonnull' argument" } */
     return 2;
 
-  if (!cp4)	   /* { dg-bogus "nonnull argument" } */
+  if (!cp4)	   /* { dg-bogus "'nonnull' argument" } */
     return 3;
 
   char **p = &cp3;
   bar (p);
-  if (cp3 == (char *) 0) /* { dg-bogus "nonnull argument" } */
+  if (cp3 == (char *) 0) /* { dg-bogus "'nonnull' argument" } */
     return 4;
 
   return 5;
diff --git a/gcc/testsuite/c-c++-common/nonnull-3.c b/gcc/testsuite/c-c++-common/nonnull-3.c
index d2ccb24f4fd..42081c889f2 100644
--- a/gcc/testsuite/c-c++-common/nonnull-3.c
+++ b/gcc/testsuite/c-c++-common/nonnull-3.c
@@ -7,5 +7,5 @@ enum { r = 1 };
 __attribute__ ((nonnull (r))) int
 f (int *p)
 {
-  return p == 0; /* { dg-warning "nonnull argument 'p' compared to NULL" } */
+  return p == 0; /* { dg-warning "'nonnull' argument 'p' compared to NULL" } */
 }
diff --git a/gcc/testsuite/c-c++-common/pr35503-1.c b/gcc/testsuite/c-c++-common/pr35503-1.c
index 25e3721df93..11075dd0e06 100644
--- a/gcc/testsuite/c-c++-common/pr35503-1.c
+++ b/gcc/testsuite/c-c++-common/pr35503-1.c
@@ -6,5 +6,5 @@ int foo (char *__restrict buf, const char *__restrict fmt, ...);
 void f(void)
 {
   char buf[100] = "hello";
-  foo (buf, "%s-%s", buf, "world"); /*  { dg-warning "passing argument 1 to restrict-qualified parameter aliases with argument 3" } */
+  foo (buf, "%s-%s", buf, "world"); /*  { dg-warning "passing argument 1 to 'restrict'-qualified parameter aliases with argument 3" } */
 }
diff --git a/gcc/testsuite/c-c++-common/pr35503-2.c b/gcc/testsuite/c-c++-common/pr35503-2.c
index bfcd9448e03..887576c3976 100644
--- a/gcc/testsuite/c-c++-common/pr35503-2.c
+++ b/gcc/testsuite/c-c++-common/pr35503-2.c
@@ -5,7 +5,7 @@ void f(int *__restrict x, int *y, int *__restrict z, int *w);
 
 void foo(int alpha, int beta)
 {
-  f (&alpha, &beta, &alpha, &alpha); /* { dg-warning "passing argument 1 to restrict-qualified parameter aliases with arguments 3, 4" } */
+  f (&alpha, &beta, &alpha, &alpha); /* { dg-warning "passing argument 1 to 'restrict'-qualified parameter aliases with arguments 3, 4" } */
 
 /* { dg-begin-multiline-output "" }
    f (&alpha, &beta, &alpha, &alpha);
diff --git a/gcc/testsuite/c-c++-common/pr35503-3.c b/gcc/testsuite/c-c++-common/pr35503-3.c
index 8cbacabba62..8d4b1fc03ee 100644
--- a/gcc/testsuite/c-c++-common/pr35503-3.c
+++ b/gcc/testsuite/c-c++-common/pr35503-3.c
@@ -5,5 +5,5 @@ void f(int *x, int *__restrict y);
 
 void foo(int a)
 {
-  f (&a, &a); /* { dg-warning "passing argument 2 to restrict-qualified parameter aliases with argument 1" } */
+  f (&a, &a); /* { dg-warning "passing argument 2 to 'restrict'-qualified parameter aliases with argument 1" } */
 }
diff --git a/gcc/testsuite/g++.dg/abi/empty12.C b/gcc/testsuite/g++.dg/abi/empty12.C
index 20d85ff873e..6568fc6202c 100644
--- a/gcc/testsuite/g++.dg/abi/empty12.C
+++ b/gcc/testsuite/g++.dg/abi/empty12.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty12a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty12.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty13.C b/gcc/testsuite/g++.dg/abi/empty13.C
index 0cb9a373e35..9ec188760c7 100644
--- a/gcc/testsuite/g++.dg/abi/empty13.C
+++ b/gcc/testsuite/g++.dg/abi/empty13.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-x c -fabi-version=11" }
 // { dg-additional-sources "empty13a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty13.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty14.C b/gcc/testsuite/g++.dg/abi/empty14.C
index 2868d8ad3f3..7deb463f5e4 100644
--- a/gcc/testsuite/g++.dg/abi/empty14.C
+++ b/gcc/testsuite/g++.dg/abi/empty14.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty14a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty14.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty15.C b/gcc/testsuite/g++.dg/abi/empty15.C
index 12385f78c78..fd36194b459 100644
--- a/gcc/testsuite/g++.dg/abi/empty15.C
+++ b/gcc/testsuite/g++.dg/abi/empty15.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty15a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty15.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty16.C b/gcc/testsuite/g++.dg/abi/empty16.C
index 1ca52f9011e..024b00e7432 100644
--- a/gcc/testsuite/g++.dg/abi/empty16.C
+++ b/gcc/testsuite/g++.dg/abi/empty16.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty16a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty16.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty17.C b/gcc/testsuite/g++.dg/abi/empty17.C
index d386e5481af..a6e58fa4d5f 100644
--- a/gcc/testsuite/g++.dg/abi/empty17.C
+++ b/gcc/testsuite/g++.dg/abi/empty17.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty17a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty17.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty18.C b/gcc/testsuite/g++.dg/abi/empty18.C
index be69c6a2115..6e64dae8d47 100644
--- a/gcc/testsuite/g++.dg/abi/empty18.C
+++ b/gcc/testsuite/g++.dg/abi/empty18.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty18a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty18.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty19.C b/gcc/testsuite/g++.dg/abi/empty19.C
index 84f5b75558b..8707db86be6 100644
--- a/gcc/testsuite/g++.dg/abi/empty19.C
+++ b/gcc/testsuite/g++.dg/abi/empty19.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty19a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty19.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty22.C b/gcc/testsuite/g++.dg/abi/empty22.C
index f4f4a02bf31..d3720f86fde 100644
--- a/gcc/testsuite/g++.dg/abi/empty22.C
+++ b/gcc/testsuite/g++.dg/abi/empty22.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty22a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty22.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty25.C b/gcc/testsuite/g++.dg/abi/empty25.C
index da6ef51ff0d..50a4c266ca0 100644
--- a/gcc/testsuite/g++.dg/abi/empty25.C
+++ b/gcc/testsuite/g++.dg/abi/empty25.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty25a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty25.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/abi/empty26.C b/gcc/testsuite/g++.dg/abi/empty26.C
index ab2f54d8dab..785cdc7d974 100644
--- a/gcc/testsuite/g++.dg/abi/empty26.C
+++ b/gcc/testsuite/g++.dg/abi/empty26.C
@@ -2,7 +2,7 @@
 // { dg-do run { target { { i?86-*-* x86_64-*-* } && { ! { ia32 } } } } }
 // { dg-options "-Wabi=11 -x c" }
 // { dg-additional-sources "empty26a.c" }
-// { dg-prune-output "command line option" }
+// { dg-prune-output "command-line option" }
 
 #include "empty26.h"
 extern "C" void fun(struct dummy, struct foo);
diff --git a/gcc/testsuite/g++.dg/concepts/decl-diagnose.C b/gcc/testsuite/g++.dg/concepts/decl-diagnose.C
index 7ac7872efb5..019a8ce1130 100644
--- a/gcc/testsuite/g++.dg/concepts/decl-diagnose.C
+++ b/gcc/testsuite/g++.dg/concepts/decl-diagnose.C
@@ -17,7 +17,7 @@ struct X
   template<typename T>
   static concept bool f6() { return true; } // { dg-error "a concept cannot be a member function" }
   static concept bool x; // { dg-error "declared 'concept'" }
-			 // { dg-error "uninitialized const" "" { target *-*-* } .-1 }
+			 // { dg-error "uninitialized 'const" "" { target *-*-* } .-1 }
   concept int x2; // { dg-error "declared 'concept'" }
   concept ~X(); // { dg-error "a destructor cannot be 'concept'" }
   concept X(); // { dg-error "a constructor cannot be 'concept'" }
diff --git a/gcc/testsuite/g++.dg/conversion/bitfield7.C b/gcc/testsuite/g++.dg/conversion/bitfield7.C
index 1080168dce1..d1b1b096c1e 100644
--- a/gcc/testsuite/g++.dg/conversion/bitfield7.C
+++ b/gcc/testsuite/g++.dg/conversion/bitfield7.C
@@ -12,5 +12,5 @@ int foo (double);
 int
 main ()
 {
-  return foo (s.bar);		// { dg-error "cannot bind bitfield" }
+  return foo (s.bar);		// { dg-error "cannot bind bit-field" }
 }
diff --git a/gcc/testsuite/g++.dg/cpp0x/addressof2.C b/gcc/testsuite/g++.dg/cpp0x/addressof2.C
index a38dce003a7..73942c5f0a5 100644
--- a/gcc/testsuite/g++.dg/cpp0x/addressof2.C
+++ b/gcc/testsuite/g++.dg/cpp0x/addressof2.C
@@ -16,7 +16,7 @@ struct S { int s : 5; int t; void foo (); } s;
 auto c = __builtin_addressof (s);
 auto d = addressof (s);
 auto e = __builtin_addressof (s.s);		// { dg-error "attempt to take address of bit-field" }
-auto f = addressof (s.s);			// { dg-error "cannot bind bitfield" }
+auto f = addressof (s.s);			// { dg-error "cannot bind bit-field" }
 auto g = __builtin_addressof (S{});		// { dg-error "taking address of rvalue" }
 auto h = addressof (S{});			// { dg-error "cannot bind non-const lvalue reference of type" }
 auto i = __builtin_addressof (S::t);		// { dg-error "invalid use of non-static data member" }
diff --git a/gcc/testsuite/g++.dg/cpp0x/constexpr-condition.C b/gcc/testsuite/g++.dg/cpp0x/constexpr-condition.C
index 388a73488e7..733d494c4d7 100644
--- a/gcc/testsuite/g++.dg/cpp0x/constexpr-condition.C
+++ b/gcc/testsuite/g++.dg/cpp0x/constexpr-condition.C
@@ -5,5 +5,5 @@ constexpr int something() { return 3; }
 
 int main() {
   if (constexpr long v = something()) {}
-  if (static long v = something()) { } // { dg-error "decl-specifier invalid" }
+  if (static long v = something()) { } // { dg-error "'decl-specifier' invalid" }
 }
diff --git a/gcc/testsuite/g++.dg/cpp0x/constexpr-neg1.C b/gcc/testsuite/g++.dg/cpp0x/constexpr-neg1.C
index 336699292a2..9b52a6e00ef 100644
--- a/gcc/testsuite/g++.dg/cpp0x/constexpr-neg1.C
+++ b/gcc/testsuite/g++.dg/cpp0x/constexpr-neg1.C
@@ -61,7 +61,7 @@ struct pixel2 {	   // { dg-message "no user-provided default constructor" }
   int x, y;
 };
 constexpr pixel2 ur = { 1294, 1024 };// OK
-constexpr pixel2 origin;	     // { dg-error "uninitialized const" }
+constexpr pixel2 origin;	     // { dg-error "uninitialized 'const" }
 
 constexpr const int* addr(const int& ir) { return &ir; } // OK
 
diff --git a/gcc/testsuite/g++.dg/cpp0x/constexpr-object1.C b/gcc/testsuite/g++.dg/cpp0x/constexpr-object1.C
index 1861d404782..5f54c635e64 100644
--- a/gcc/testsuite/g++.dg/cpp0x/constexpr-object1.C
+++ b/gcc/testsuite/g++.dg/cpp0x/constexpr-object1.C
@@ -15,7 +15,7 @@ constexpr A1 a1 = A1();
 extern constexpr int i2; // { dg-error "definition" }
 
 // error: missing initializer
-constexpr A1 a2; // { dg-error "uninitialized const" }
+constexpr A1 a2; // { dg-error "uninitialized 'const" }
 
 const constexpr A1 a3 = A1();
 
diff --git a/gcc/testsuite/g++.dg/cpp0x/defaulted2.C b/gcc/testsuite/g++.dg/cpp0x/defaulted2.C
index 45b09c17812..b7b31438491 100644
--- a/gcc/testsuite/g++.dg/cpp0x/defaulted2.C
+++ b/gcc/testsuite/g++.dg/cpp0x/defaulted2.C
@@ -21,7 +21,7 @@ struct B // { dg-message "user-provided default constructor" }
   B() = default;		// { dg-message "not user-provided" }
 };
 
-const B b;			// { dg-error "uninitialized const" }
+const B b;			// { dg-error "uninitialized 'const" }
 
 struct C
 {
diff --git a/gcc/testsuite/g++.dg/cpp0x/gnu_fext-numeric-literals.C b/gcc/testsuite/g++.dg/cpp0x/gnu_fext-numeric-literals.C
index 816077d5401..7a467a154b0 100644
--- a/gcc/testsuite/g++.dg/cpp0x/gnu_fext-numeric-literals.C
+++ b/gcc/testsuite/g++.dg/cpp0x/gnu_fext-numeric-literals.C
@@ -22,55 +22,55 @@ operator"" J(unsigned long long n) // { dg-warning "1:integer suffix .J. shadowe
 //  Floating-point imaginary...
 
 constexpr long double
-operator"" i(long double n) // { dg-warning "1:floating point suffix .i. shadowed by implementation" "" { target c++11_only } }
+operator"" i(long double n) // { dg-warning "1:floating-point suffix .i. shadowed by implementation" "" { target c++11_only } }
 { return 4.0L * n + 0.0L; }
 
 constexpr long double
-operator"" I(long double n) // { dg-warning "1:floating point suffix .I. shadowed by implementation" }
+operator"" I(long double n) // { dg-warning "1:floating-point suffix .I. shadowed by implementation" }
 { return 4.0L * n + 1.0L; }
 
 constexpr long double
-operator"" j(long double n) // { dg-warning "1:floating point suffix .j. shadowed by implementation" }
+operator"" j(long double n) // { dg-warning "1:floating-point suffix .j. shadowed by implementation" }
 { return 4.0L * n + 2.0L; }
 
 constexpr long double
-operator"" J(long double n) // { dg-warning "1:floating point suffix .J. shadowed by implementation" }
+operator"" J(long double n) // { dg-warning "1:floating-point suffix .J. shadowed by implementation" }
 { return 4.0L * n + 3.0L; }
 
 //  Fixed-point...
 
 constexpr long double
-operator"" k(long double n) // { dg-warning "1:floating point suffix .k. shadowed by implementation" }
+operator"" k(long double n) // { dg-warning "1:floating-point suffix .k. shadowed by implementation" }
 { return 4 * (n + 1) + 0; }
 
 constexpr long double
-operator"" K(long double n) // { dg-warning "1:floating point suffix .K. shadowed by implementation" }
+operator"" K(long double n) // { dg-warning "1:floating-point suffix .K. shadowed by implementation" }
 { return 4 * (n + 1) + 1; }
 
 constexpr long double
-operator"" r(long double n) // { dg-warning "1:floating point suffix .r. shadowed by implementation" }
+operator"" r(long double n) // { dg-warning "1:floating-point suffix .r. shadowed by implementation" }
 { return 4 * (n + 1) + 2; }
 
 constexpr long double
-operator"" R(long double n) // { dg-warning "1:floating point suffix .R. shadowed by implementation" }
+operator"" R(long double n) // { dg-warning "1:floating-point suffix .R. shadowed by implementation" }
 { return 4 * (n + 1) + 3; }
 
 //  Machine-defined...
 
 constexpr long double
-operator"" w(long double n) // { dg-warning "1:floating point suffix .w. shadowed by implementation" }
+operator"" w(long double n) // { dg-warning "1:floating-point suffix .w. shadowed by implementation" }
 { return 4 * (n + 2) + 0; }
 
 constexpr long double
-operator"" W(long double n) // { dg-warning "1:floating point suffix .W. shadowed by implementation" }
+operator"" W(long double n) // { dg-warning "1:floating-point suffix .W. shadowed by implementation" }
 { return 4 * (n + 2) + 1; }
 
 constexpr long double
-operator"" q(long double n) // { dg-warning "1:floating point suffix .q. shadowed by implementation" }
+operator"" q(long double n) // { dg-warning "1:floating-point suffix .q. shadowed by implementation" }
 { return 4 * (n + 2) + 2; }
 
 constexpr long double
-operator"" Q(long double n) // { dg-warning "1:floating point suffix .Q. shadowed by implementation" }
+operator"" Q(long double n) // { dg-warning "1:floating-point suffix .Q. shadowed by implementation" }
 { return 4 * (n + 2) + 3; }
 
 int
diff --git a/gcc/testsuite/g++.dg/cpp0x/pr42844-2.C b/gcc/testsuite/g++.dg/cpp0x/pr42844-2.C
index ff23966051c..75117c717cf 100644
--- a/gcc/testsuite/g++.dg/cpp0x/pr42844-2.C
+++ b/gcc/testsuite/g++.dg/cpp0x/pr42844-2.C
@@ -34,8 +34,8 @@ struct Derived3 : Base // { dg-message "user-provided default constructor" }
 
 void f()
 {
-    const A a; // { dg-error "uninitialized const" }
-    const Derived d; // { dg-error "uninitialized const" }
-    const Derived2 d2; // { dg-error "uninitialized const" }
-    const Derived3 d3; // { dg-error "uninitialized const" }
+    const A a; // { dg-error "uninitialized 'const" }
+    const Derived d; // { dg-error "uninitialized 'const" }
+    const Derived2 d2; // { dg-error "uninitialized 'const" }
+    const Derived3 d3; // { dg-error "uninitialized 'const" }
 }
diff --git a/gcc/testsuite/g++.dg/cpp0x/pr83993.C b/gcc/testsuite/g++.dg/cpp0x/pr83993.C
index 17b7a641957..c256257a5c1 100644
--- a/gcc/testsuite/g++.dg/cpp0x/pr83993.C
+++ b/gcc/testsuite/g++.dg/cpp0x/pr83993.C
@@ -7,7 +7,7 @@ const int b[5] = { 1, 2, 3, 4, 5 };
 extern const int c[4];
 constexpr const int *d = &a[0];
 constexpr const int *d2 = a;
-constexpr const int *e = &a[1];		// { dg-error "non-zero array subscript '1' is used with array 'a' of type 'const int \\\[\\\]' with unknown bounds" }
+constexpr const int *e = &a[1];		// { dg-error "nonzero array subscript '1' is used with array 'a' of type 'const int \\\[\\\]' with unknown bounds" }
 constexpr const int *f = &b[0];
 constexpr const int *f2 = b;
 constexpr const int *g = &b[5];
@@ -30,7 +30,7 @@ foo ()
 
 constexpr const int *m = &l[0];
 constexpr const int *m2 = l;
-constexpr const int *n = &l[1];		// { dg-error "non-zero array subscript '1' is used with array 'l' of type 'const int \\\[\\\]' with unknown bounds" }
+constexpr const int *n = &l[1];		// { dg-error "nonzero array subscript '1' is used with array 'l' of type 'const int \\\[\\\]' with unknown bounds" }
 static_assert (d == d2 && f == f2 && i == i2 && m == m2, "");
 const int o[] = { 1, 2 };
 constexpr const int *p = &o[0];
@@ -40,7 +40,7 @@ constexpr const int *r = &o[3];		// { dg-error "array subscript value '3' is out
 struct S { char a; char b[]; } s;
 constexpr const char *t = &s.b[0];
 constexpr const char *t2 = s.b;
-constexpr const char *u = &s.b[1];	// { dg-error "non-zero array subscript '1' is used with array of type 'char \\\[\\\]' with unknown bounds" }
+constexpr const char *u = &s.b[1];	// { dg-error "nonzero array subscript '1' is used with array of type 'char \\\[\\\]' with unknown bounds" }
 struct V { int a; };
 extern V v[];
 constexpr V *w = &v[0];
diff --git a/gcc/testsuite/g++.dg/cpp0x/std_fext-numeric-literals.C b/gcc/testsuite/g++.dg/cpp0x/std_fext-numeric-literals.C
index 72b8546ae58..d251c744999 100644
--- a/gcc/testsuite/g++.dg/cpp0x/std_fext-numeric-literals.C
+++ b/gcc/testsuite/g++.dg/cpp0x/std_fext-numeric-literals.C
@@ -22,55 +22,55 @@ operator"" J(unsigned long long n) // { dg-warning "1:integer suffix .J. shadowe
 //  Floating-point imaginary...
 
 constexpr long double
-operator"" i(long double n) // { dg-warning "1:floating point suffix .i. shadowed by implementation" "" { target c++11_only } }
+operator"" i(long double n) // { dg-warning "1:floating-point suffix .i. shadowed by implementation" "" { target c++11_only } }
 { return 4.0L * n + 0.0L; }
 
 constexpr long double
-operator"" I(long double n) // { dg-warning "1:floating point suffix .I. shadowed by implementation" }
+operator"" I(long double n) // { dg-warning "1:floating-point suffix .I. shadowed by implementation" }
 { return 4.0L * n + 1.0L; }
 
 constexpr long double
-operator"" j(long double n) // { dg-warning "1:floating point suffix .j. shadowed by implementation" }
+operator"" j(long double n) // { dg-warning "1:floating-point suffix .j. shadowed by implementation" }
 { return 4.0L * n + 2.0L; }
 
 constexpr long double
-operator"" J(long double n) // { dg-warning "1:floating point suffix .J. shadowed by implementation" }
+operator"" J(long double n) // { dg-warning "1:floating-point suffix .J. shadowed by implementation" }
 { return 4.0L * n + 3.0L; }
 
 //  Fixed-point...
 
 constexpr long double
-operator"" k(long double n) // { dg-warning "1:floating point suffix .k. shadowed by implementation" }
+operator"" k(long double n) // { dg-warning "1:floating-point suffix .k. shadowed by implementation" }
 { return 4 * (n + 1) + 0; }
 
 constexpr long double
-operator"" K(long double n) // { dg-warning "1:floating point suffix .K. shadowed by implementation" }
+operator"" K(long double n) // { dg-warning "1:floating-point suffix .K. shadowed by implementation" }
 { return 4 * (n + 1) + 1; }
 
 constexpr long double
-operator"" r(long double n) // { dg-warning "1:floating point suffix .r. shadowed by implementation" }
+operator"" r(long double n) // { dg-warning "1:floating-point suffix .r. shadowed by implementation" }
 { return 4 * (n + 1) + 2; }
 
 constexpr long double
-operator"" R(long double n) // { dg-warning "1:floating point suffix .R. shadowed by implementation" }
+operator"" R(long double n) // { dg-warning "1:floating-point suffix .R. shadowed by implementation" }
 { return 4 * (n + 1) + 3; }
 
 //  Machine-defined...
 
 constexpr long double
-operator"" w(long double n) // { dg-warning "1:floating point suffix .w. shadowed by implementation" }
+operator"" w(long double n) // { dg-warning "1:floating-point suffix .w. shadowed by implementation" }
 { return 4 * (n + 2) + 0; }
 
 constexpr long double
-operator"" W(long double n) // { dg-warning "1:floating point suffix .W. shadowed by implementation" }
+operator"" W(long double n) // { dg-warning "1:floating-point suffix .W. shadowed by implementation" }
 { return 4 * (n + 2) + 1; }
 
 constexpr long double
-operator"" q(long double n) // { dg-warning "1:floating point suffix .q. shadowed by implementation" }
+operator"" q(long double n) // { dg-warning "1:floating-point suffix .q. shadowed by implementation" }
 { return 4 * (n + 2) + 2; }
 
 constexpr long double
-operator"" Q(long double n) // { dg-warning "1:floating point suffix .Q. shadowed by implementation" }
+operator"" Q(long double n) // { dg-warning "1:floating-point suffix .Q. shadowed by implementation" }
 { return 4 * (n + 2) + 3; }
 
 int
diff --git a/gcc/testsuite/g++.dg/cpp0x/udlit-shadow-neg.C b/gcc/testsuite/g++.dg/cpp0x/udlit-shadow-neg.C
index c63559060e9..fdddd8d84ed 100644
--- a/gcc/testsuite/g++.dg/cpp0x/udlit-shadow-neg.C
+++ b/gcc/testsuite/g++.dg/cpp0x/udlit-shadow-neg.C
@@ -2,7 +2,7 @@
 
 //  Test that the standard suffixes shadow any user-defined suffixes of the same name.
 long double
-operator"" L(long double x)  // { dg-warning "floating point suffix|shadowed by implementation" }
+operator"" L(long double x)  // { dg-warning "floating-point suffix|shadowed by implementation" }
 { return x; }
 
 unsigned long long int
@@ -10,7 +10,7 @@ operator"" ULL(unsigned long long int k)  // { dg-warning "integer suffix|shadow
 { return k; }
 
 long double
-operator"" l(long double x)  // { dg-warning "floating point suffix|shadowed by implementation" }
+operator"" l(long double x)  // { dg-warning "floating-point suffix|shadowed by implementation" }
 { return x; }
 
 unsigned long long int
diff --git a/gcc/testsuite/g++.dg/cpp1z/inline-var2.C b/gcc/testsuite/g++.dg/cpp1z/inline-var2.C
index 1a016fa8216..236f6ecb133 100644
--- a/gcc/testsuite/g++.dg/cpp1z/inline-var2.C
+++ b/gcc/testsuite/g++.dg/cpp1z/inline-var2.C
@@ -47,7 +47,7 @@ struct W
 {
   static inline int var24;			// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
   static inline const int var25;		// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
-						// { dg-error "uninitialized const" "" { target *-*-* } .-1 }
+						// { dg-error "uninitialized 'const" "" { target *-*-* } .-1 }
   static inline int var26 = 5;			// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
   static inline const int var27 = 6;		// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
   static inline double var28 = { 4.0 };		// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
@@ -90,7 +90,7 @@ struct Z
 {
   static inline int var37;			// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
   static inline const int var38;		// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
-						// { dg-error "uninitialized const" "" { target *-*-* } .-1 }
+						// { dg-error "uninitialized 'const" "" { target *-*-* } .-1 }
   static inline int var39 = 5;			// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
   static inline const int var40 = 6;		// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
   static inline double var41 = { 4.0 };		// { dg-warning "10:inline variables are only available with" "" { target c++14_down } }
diff --git a/gcc/testsuite/g++.dg/init/pr42844.C b/gcc/testsuite/g++.dg/init/pr42844.C
index 299a30a91d2..9b7ed05de0e 100644
--- a/gcc/testsuite/g++.dg/init/pr42844.C
+++ b/gcc/testsuite/g++.dg/init/pr42844.C
@@ -22,22 +22,22 @@ struct G { T t; }; // { dg-message "user-provided default constructor" }
 
 void f ()
 {
-  B const b;    // { dg-error "uninitialized const" }
+  B const b;    // { dg-error "uninitialized 'const" }
   extern B const bext;
 
-  C const c[ 1 ]; // { dg-error "uninitialized const" }
+  C const c[ 1 ]; // { dg-error "uninitialized 'const" }
   extern C const cext[ 1 ];
 
   D const d;
   extern D const dext;
 
-  E const e;	// { dg-error "uninitialized const" }
+  E const e;	// { dg-error "uninitialized 'const" }
   extern E const eext;
 
-  F<int> const f; // { dg-error "uninitialized const" }
+  F<int> const f; // { dg-error "uninitialized 'const" }
   extern F<int> const fext;
 
-  G<int> const g; // { dg-error "uninitialized const" }
+  G<int> const g; // { dg-error "uninitialized 'const" }
   extern G<int> const gext;
 }
 
@@ -48,7 +48,7 @@ struct I : A { int i; }; // { dg-message "user-provided default constructor" }
 template <class T>
 void g ()
 {
-  T const t; // { dg-error "uninitialized const" }
+  T const t; // { dg-error "uninitialized 'const" }
   extern T const text;
 }
 
diff --git a/gcc/testsuite/g++.dg/tree-ssa/pr20280.C b/gcc/testsuite/g++.dg/tree-ssa/pr20280.C
index ec4dad70620..334ed8a75e0 100644
--- a/gcc/testsuite/g++.dg/tree-ssa/pr20280.C
+++ b/gcc/testsuite/g++.dg/tree-ssa/pr20280.C
@@ -44,9 +44,9 @@ void f(X &x, bool b)
   (void)(b ? x.i : x.k);
   (void)(b ? x.j : x.k);
 
-  g (b ? x.i : x.j); // { dg-error "cannot bind bitfield" }
-  g (b ? x.i : x.k); // { dg-error "cannot bind bitfield" }
-  g (b ? x.j : x.k); // { dg-error "cannot bind bitfield" }
+  g (b ? x.i : x.j); // { dg-error "cannot bind bit-field" }
+  g (b ? x.i : x.k); // { dg-error "cannot bind bit-field" }
+  g (b ? x.j : x.k); // { dg-error "cannot bind bit-field" }
 
   // It's not entirely clear whether these should be accepted.  The
   // conditional expressions are lvalues for sure, and 8.5.3/5 exempts
diff --git a/gcc/testsuite/g++.dg/warn/Wfloat-equal-1.C b/gcc/testsuite/g++.dg/warn/Wfloat-equal-1.C
index 36b3fa53f3f..1b23611bdc0 100644
--- a/gcc/testsuite/g++.dg/warn/Wfloat-equal-1.C
+++ b/gcc/testsuite/g++.dg/warn/Wfloat-equal-1.C
@@ -4,7 +4,7 @@
 
 double a, b;
 _Complex double c, d;
-int f(void) { return a == b; } /* { dg-warning "comparing floating point" } */
-int g(void) { return c == d; } /* { dg-warning "comparing floating point" } */
-int h(void) { return a != b; } /* { dg-warning "comparing floating point" } */
-int i(void) { return c != d; } /* { dg-warning "comparing floating point" } */
+int f(void) { return a == b; } /* { dg-warning "comparing floating-point" } */
+int g(void) { return c == d; } /* { dg-warning "comparing floating-point" } */
+int h(void) { return a != b; } /* { dg-warning "comparing floating-point" } */
+int i(void) { return c != d; } /* { dg-warning "comparing floating-point" } */
diff --git a/gcc/testsuite/g++.dg/warn/Wrestrict-1.C b/gcc/testsuite/g++.dg/warn/Wrestrict-1.C
index fe844f18c43..441ff3482bc 100644
--- a/gcc/testsuite/g++.dg/warn/Wrestrict-1.C
+++ b/gcc/testsuite/g++.dg/warn/Wrestrict-1.C
@@ -7,6 +7,6 @@ void foo (char *__restrict, char *__restrict = __null);
 void
 bar (char *p)
 {
-  foo (p, p);	// { dg-warning "to restrict-qualified parameter aliases with" }
+  foo (p, p);	// { dg-warning "to 'restrict'-qualified parameter aliases with" }
   foo (p);
 }
diff --git a/gcc/testsuite/g++.dg/warn/Wrestrict-2.C b/gcc/testsuite/g++.dg/warn/Wrestrict-2.C
index 4bab03bc850..72957d0f551 100644
--- a/gcc/testsuite/g++.dg/warn/Wrestrict-2.C
+++ b/gcc/testsuite/g++.dg/warn/Wrestrict-2.C
@@ -8,8 +8,8 @@ template <int N>
 void
 bar (char **p)
 {
-  foo (p[0], p[0]);	// { dg-warning "to restrict-qualified parameter aliases with" }
-  foo (p[0], p[N]);	// { dg-warning "to restrict-qualified parameter aliases with" }
+  foo (p[0], p[0]);	// { dg-warning "to 'restrict'-qualified parameter aliases with" }
+  foo (p[0], p[N]);	// { dg-warning "to 'restrict'-qualified parameter aliases with" }
   foo (p[0]);
 }
 
@@ -17,8 +17,8 @@ template <int N>
 void
 bar2 (char **p)
 {
-  foo (p[0], p[0]);	// { dg-warning "to restrict-qualified parameter aliases with" }
-  foo (p[0], p[N]);	// { dg-bogus "to restrict-qualified parameter aliases with" }
+  foo (p[0], p[0]);	// { dg-warning "to 'restrict'-qualified parameter aliases with" }
+  foo (p[0], p[N]);	// { dg-bogus "to 'restrict'-qualified parameter aliases with" }
   foo (p[0]);
 }
 
diff --git a/gcc/testsuite/g++.dg/warn/nonnull3.C b/gcc/testsuite/g++.dg/warn/nonnull3.C
index d82fa31d957..e869b0f5de9 100644
--- a/gcc/testsuite/g++.dg/warn/nonnull3.C
+++ b/gcc/testsuite/g++.dg/warn/nonnull3.C
@@ -16,4 +16,4 @@ void A::bar (B *)
 {
   foo ((int B::*) nullptr);
 }
-// { dg-warning "nonnull argument" "" {target "*-*-*"} 0 }
+// { dg-warning "'nonnull' argument" "" {target "*-*-*"} 0 }
diff --git a/gcc/testsuite/g++.dg/warn/pr8715.C b/gcc/testsuite/g++.dg/warn/pr8715.C
index 330c148bb59..fccb25aa7e5 100644
--- a/gcc/testsuite/g++.dg/warn/pr8715.C
+++ b/gcc/testsuite/g++.dg/warn/pr8715.C
@@ -5,7 +5,7 @@ int foo()
 {
   unsigned char b = '1';
 
-  bool x = ~b; /* { dg-warning "promoted ~unsigned is always non-zero" } */
+  bool x = ~b; /* { dg-warning "promoted bitwise complement of an unsigned value is always nonzero" } */
 
   return 0;
 }
diff --git a/gcc/testsuite/g++.old-deja/g++.other/cond5.C b/gcc/testsuite/g++.old-deja/g++.other/cond5.C
index 994ea6d9522..f4d16e9760b 100644
--- a/gcc/testsuite/g++.old-deja/g++.other/cond5.C
+++ b/gcc/testsuite/g++.old-deja/g++.other/cond5.C
@@ -23,8 +23,8 @@ void fn(int i)
   int j;
 
   j = (i ? e1 : e2);    // { dg-warning "mismatch" }
-  d = (i ? e1 : 1.0);   // { dg-warning "non-enumeral" }
-  d = (i ? 1.0 : e2);   // { dg-warning "non-enumeral" }
+  d = (i ? e1 : 1.0);   // { dg-warning "non-enumerated" }
+  d = (i ? 1.0 : e2);   // { dg-warning "non-enumerated" }
   E1 e = (i ? e1 : e1); // ok
   j = (i ? 1 : e2);     // ok
   j = (i ? e1 : 1);     // ok
diff --git a/gcc/testsuite/gcc.dg/Wfloat-equal-1.c b/gcc/testsuite/gcc.dg/Wfloat-equal-1.c
index 36b3fa53f3f..1b23611bdc0 100644
--- a/gcc/testsuite/gcc.dg/Wfloat-equal-1.c
+++ b/gcc/testsuite/gcc.dg/Wfloat-equal-1.c
@@ -4,7 +4,7 @@
 
 double a, b;
 _Complex double c, d;
-int f(void) { return a == b; } /* { dg-warning "comparing floating point" } */
-int g(void) { return c == d; } /* { dg-warning "comparing floating point" } */
-int h(void) { return a != b; } /* { dg-warning "comparing floating point" } */
-int i(void) { return c != d; } /* { dg-warning "comparing floating point" } */
+int f(void) { return a == b; } /* { dg-warning "comparing floating-point" } */
+int g(void) { return c == d; } /* { dg-warning "comparing floating-point" } */
+int h(void) { return a != b; } /* { dg-warning "comparing floating-point" } */
+int i(void) { return c != d; } /* { dg-warning "comparing floating-point" } */
diff --git a/gcc/testsuite/gcc.dg/attr-noinline.c b/gcc/testsuite/gcc.dg/attr-noinline.c
index 13cc6600c28..b77a3466036 100644
--- a/gcc/testsuite/gcc.dg/attr-noinline.c
+++ b/gcc/testsuite/gcc.dg/attr-noinline.c
@@ -3,15 +3,15 @@
 
 extern int t();
 
-static inline void __attribute__((__noinline__)) function_definition(void) {t();} /* { dg-warning "inline function \[^\n\]* given attribute noinline" } */
+static inline void __attribute__((__noinline__)) function_definition(void) {t();} /* { dg-warning "inline function \[^\n\]* given attribute 'noinline'" } */
 
-static inline void __attribute__((__noinline__)) function_declaration_both_before(void); /* { dg-warning "inline function \[^\n\]* given attribute noinline" } */
+static inline void __attribute__((__noinline__)) function_declaration_both_before(void); /* { dg-warning "inline function \[^\n\]* given attribute 'noinline'" } */
 
 static void function_declaration_both_before(void) {t();}
 
 static void function_declaration_both_after(void);
 
-static inline void __attribute__((__noinline__)) function_declaration_both_after(void); /* { dg-warning "(inline function \[^\n\]* given attribute noinline|declared inline after its definition)" } */
+static inline void __attribute__((__noinline__)) function_declaration_both_after(void); /* { dg-warning "(inline function \[^\n\]* given attribute .noinline.|declared inline after its definition)" } */
 
 static void function_declaration_both_after(void) {t();}
 
diff --git a/gcc/testsuite/gcc.dg/attr-noipa.c b/gcc/testsuite/gcc.dg/attr-noipa.c
index e2349b6a418..b2485bb7f0b 100644
--- a/gcc/testsuite/gcc.dg/attr-noipa.c
+++ b/gcc/testsuite/gcc.dg/attr-noipa.c
@@ -4,7 +4,7 @@
 /* { dg-require-effective-target alloca } */
 
 static inline int __attribute__((noipa))
-fn1 (void) /* { dg-warning "inline function \[^\n\]* given attribute noinline" "" } */
+fn1 (void) /* { dg-warning "inline function \[^\n\]* given attribute 'noinline'" "" } */
 {
   return 1;
 }
diff --git a/gcc/testsuite/gcc.dg/attr-weakref-2.c b/gcc/testsuite/gcc.dg/attr-weakref-2.c
index 75cc0779c57..172a4a63e6a 100644
--- a/gcc/testsuite/gcc.dg/attr-weakref-2.c
+++ b/gcc/testsuite/gcc.dg/attr-weakref-2.c
@@ -4,4 +4,4 @@
 typedef int vtype;
 
 extern vtype wv1;
-extern vtype Wv1a __attribute__((weakref ("wv1"))); /* { dg-error "weakref 'Wv1a' must have static linkage" } */
+extern vtype Wv1a __attribute__((weakref ("wv1"))); /* { dg-error "'weakref' symbol 'Wv1a' must have static linkage" } */
diff --git a/gcc/testsuite/gcc.dg/cast-1.c b/gcc/testsuite/gcc.dg/cast-1.c
index 19ed4f4208d..335a090d4f9 100644
--- a/gcc/testsuite/gcc.dg/cast-1.c
+++ b/gcc/testsuite/gcc.dg/cast-1.c
@@ -24,8 +24,8 @@ f (void)
   (union u) l; /* { dg-error "cast to union type from type not present in union" } */
   (int) sv; /* { dg-error "aggregate value used where an integer was expected" } */
   (int) uv; /* { dg-error "aggregate value used where an integer was expected" } */
-  (float) sv; /* { dg-error "aggregate value used where a floating point was expected" } */
-  (float) uv; /* { dg-error "aggregate value used where a floating point was expected" } */
+  (float) sv; /* { dg-error "aggregate value used where a floating-point was expected" } */
+  (float) uv; /* { dg-error "aggregate value used where a floating-point was expected" } */
   (_Complex double) sv; /* { dg-error "aggregate value used where a complex was expected" } */
   (_Complex double) uv; /* { dg-error "aggregate value used where a complex was expected" } */
   (void *) sv; /* { dg-error "cannot convert to a pointer type" } */
diff --git a/gcc/testsuite/gcc.dg/cast-2.c b/gcc/testsuite/gcc.dg/cast-2.c
index 24f63b2e8d4..2523ac4cbc9 100644
--- a/gcc/testsuite/gcc.dg/cast-2.c
+++ b/gcc/testsuite/gcc.dg/cast-2.c
@@ -24,8 +24,8 @@ f (void)
   (union u) l; /* { dg-error "cast to union type from type not present in union" } */
   (int) sv; /* { dg-error "aggregate value used where an integer was expected" } */
   (int) uv; /* { dg-error "aggregate value used where an integer was expected" } */
-  (float) sv; /* { dg-error "aggregate value used where a floating point was expected" } */
-  (float) uv; /* { dg-error "aggregate value used where a floating point was expected" } */
+  (float) sv; /* { dg-error "aggregate value used where a floating-point was expected" } */
+  (float) uv; /* { dg-error "aggregate value used where a floating-point was expected" } */
   (_Complex double) sv; /* { dg-error "aggregate value used where a complex was expected" } */
   (_Complex double) uv; /* { dg-error "aggregate value used where a complex was expected" } */
   (void *) sv; /* { dg-error "cannot convert to a pointer type" } */
diff --git a/gcc/testsuite/gcc.dg/cast-3.c b/gcc/testsuite/gcc.dg/cast-3.c
index d8ae3a0fce2..1e3f5f43c54 100644
--- a/gcc/testsuite/gcc.dg/cast-3.c
+++ b/gcc/testsuite/gcc.dg/cast-3.c
@@ -24,8 +24,8 @@ f (void)
   (union u) l; /* { dg-error "cast to union type from type not present in union" } */
   (int) sv; /* { dg-error "aggregate value used where an integer was expected" } */
   (int) uv; /* { dg-error "aggregate value used where an integer was expected" } */
-  (float) sv; /* { dg-error "aggregate value used where a floating point was expected" } */
-  (float) uv; /* { dg-error "aggregate value used where a floating point was expected" } */
+  (float) sv; /* { dg-error "aggregate value used where a floating-point was expected" } */
+  (float) uv; /* { dg-error "aggregate value used where a floating-point was expected" } */
   (_Complex double) sv; /* { dg-error "aggregate value used where a complex was expected" } */
   (_Complex double) uv; /* { dg-error "aggregate value used where a complex was expected" } */
   (void *) sv; /* { dg-error "cannot convert to a pointer type" } */
diff --git a/gcc/testsuite/gcc.dg/dfp/cast-bad.c b/gcc/testsuite/gcc.dg/dfp/cast-bad.c
index 8d22ba3f8c1..fcaf22db9b9 100644
--- a/gcc/testsuite/gcc.dg/dfp/cast-bad.c
+++ b/gcc/testsuite/gcc.dg/dfp/cast-bad.c
@@ -31,10 +31,10 @@ f (void)
   (struct s) d128; /* { dg-error "conversion to non-scalar type requested" } */
   (union u) d128; /* { dg-error "cast to union type from type not present in union" } */
 		
-  (_Decimal32) sv; /* { dg-error "aggregate value used where a floating point was expected" } */
-  (_Decimal32) uv; /* { dg-error "aggregate value used where a floating point was expected" } */
-  (_Decimal64) sv; /* { dg-error "aggregate value used where a floating point was expected" } */
-  (_Decimal64) uv; /* { dg-error "aggregate value used where a floating point was expected" } */
-  (_Decimal128) sv; /* { dg-error "aggregate value used where a floating point was expected" } */
-  (_Decimal128) uv; /* { dg-error "aggregate value used where a floating point was expected" } */
+  (_Decimal32) sv; /* { dg-error "aggregate value used where a floating-point was expected" } */
+  (_Decimal32) uv; /* { dg-error "aggregate value used where a floating-point was expected" } */
+  (_Decimal64) sv; /* { dg-error "aggregate value used where a floating-point was expected" } */
+  (_Decimal64) uv; /* { dg-error "aggregate value used where a floating-point was expected" } */
+  (_Decimal128) sv; /* { dg-error "aggregate value used where a floating-point was expected" } */
+  (_Decimal128) uv; /* { dg-error "aggregate value used where a floating-point was expected" } */
 }
diff --git a/gcc/testsuite/gcc.dg/dfp/warn-abs-2.c b/gcc/testsuite/gcc.dg/dfp/warn-abs-2.c
index c1a1994997f..403b0394298 100644
--- a/gcc/testsuite/gcc.dg/dfp/warn-abs-2.c
+++ b/gcc/testsuite/gcc.dg/dfp/warn-abs-2.c
@@ -8,16 +8,16 @@
 void tst_decimal (_Decimal32 *p32, _Decimal64 *p64, _Decimal128 *p128)
 {
   *p32 = abs(*p32);       /* { dg-warning "using integer absolute value function" } */
-  *p64 = fabs(*p64);      /* { dg-warning "using floating point absolute value function" } */
+  *p64 = fabs(*p64);      /* { dg-warning "using floating-point absolute value function" } */
   *p128 = cabsl(*p128);   /* { dg-warning "using complex absolute value function" } */
 }
 
 void tst_notdecimal (int *pi, double *pd, long double *pld, complex double *pc)
 {
-  *pi = __builtin_fabsd32 (*pi);   /* { dg-warning "using decimal floating point absolute value function" } */
-  *pd = __builtin_fabsd64 (*pd);   /* { dg-warning "using decimal floating point absolute value function" } */
-  *pld = __builtin_fabsd64 (*pld); /* { dg-warning "using decimal floating point absolute value function" } */
-  *pc = __builtin_fabsd128 (*pc);  /* { dg-warning "using decimal floating point absolute value function" } */
+  *pi = __builtin_fabsd32 (*pi);   /* { dg-warning "using decimal floating-point absolute value function" } */
+  *pd = __builtin_fabsd64 (*pd);   /* { dg-warning "using decimal floating-point absolute value function" } */
+  *pld = __builtin_fabsd64 (*pld); /* { dg-warning "using decimal floating-point absolute value function" } */
+  *pc = __builtin_fabsd128 (*pc);  /* { dg-warning "using decimal floating-point absolute value function" } */
 }
 
 void
diff --git a/gcc/testsuite/gcc.dg/enum-mode-1.c b/gcc/testsuite/gcc.dg/enum-mode-1.c
index 09276b7fac0..9d3ea26d6d3 100644
--- a/gcc/testsuite/gcc.dg/enum-mode-1.c
+++ b/gcc/testsuite/gcc.dg/enum-mode-1.c
@@ -1,10 +1,10 @@
 /* { dg-do compile } */
 
-enum e1 { A = 256 } __attribute__((__mode__(__byte__))); /* { dg-error "specified mode too small for enumeral values" } */
-enum e2 { B = 256 } __attribute__((__packed__, __mode__(__byte__))); /* { dg-error "specified mode too small for enumeral values" } */
+enum e1 { A = 256 } __attribute__((__mode__(__byte__))); /* { dg-error "specified mode too small for enumerated values" } */
+enum e2 { B = 256 } __attribute__((__packed__, __mode__(__byte__))); /* { dg-error "specified mode too small for enumerated values" } */
 
-enum e3 { C = __INT_MAX__ } __attribute__((__mode__(__QI__))); /* { dg-error "specified mode too small for enumeral values" } */
-enum e4 { D = __INT_MAX__ } __attribute__((__packed__, __mode__(__QI__))); /* { dg-error "specified mode too small for enumeral values" } */
+enum e3 { C = __INT_MAX__ } __attribute__((__mode__(__QI__))); /* { dg-error "specified mode too small for enumerated values" } */
+enum e4 { D = __INT_MAX__ } __attribute__((__packed__, __mode__(__QI__))); /* { dg-error "specified mode too small for enumerated values" } */
 
-enum e5 { E = __INT_MAX__ } __attribute__((__mode__(__HI__))); /* { dg-error "specified mode too small for enumeral values" "" { xfail int16 } } */
-enum e6 { F = __INT_MAX__ } __attribute__((__packed__, __mode__(__HI__))); /* { dg-error "specified mode too small for enumeral values" "" { xfail int16 } } */
+enum e5 { E = __INT_MAX__ } __attribute__((__mode__(__HI__))); /* { dg-error "specified mode too small for enumerated values" "" { xfail int16 } } */
+enum e6 { F = __INT_MAX__ } __attribute__((__packed__, __mode__(__HI__))); /* { dg-error "specified mode too small for enumerated values" "" { xfail int16 } } */
diff --git a/gcc/testsuite/gcc.dg/format/gcc_diag-1.c b/gcc/testsuite/gcc.dg/format/gcc_diag-1.c
index 87614567b91..4a64d5460c6 100644
--- a/gcc/testsuite/gcc.dg/format/gcc_diag-1.c
+++ b/gcc/testsuite/gcc.dg/format/gcc_diag-1.c
@@ -1,7 +1,7 @@
 /* Test for GCC diagnostic formats.  */
 /* Origin: Kaveh Ghazi <ghazi@caip.rutgers.edu> */
 /* { dg-do compile } */
-/* { dg-options "-Wformat" } */
+/* { dg-options "-Wformat -Wno-format-diag" } */
 
 #include "format.h"
 
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/format/gcc_diag-11.c
@@ -0,0 +1,455 @@
+/* Test warnings for common punctuation, quoting, and spelling issues
+   in GCC diagnostics.
+   { dg-do compile }
+   { dg-options "-Wformat -Wformat-diag" } */
+
+/* Magic identifiers must be set before the attribute is used.  */
+
+typedef long long __gcc_host_wide_int__;
+
+typedef struct location_s
+{
+  const char *file;
+  int line;
+} location_t;
+
+union tree_node;
+typedef union tree_node *tree;
+
+/* Define gimple as a dummy type.  The typedef must be provided for
+   the C test to find the symbol.  */
+typedef struct gimple gimple;
+
+/* Likewise for cgraph_node.  */
+typedef struct cgraph_node cgraph_node;
+
+#define ATTR(...)    __attribute__ ((__VA_ARGS__))
+#define FORMAT(kind) ATTR (format (__gcc_## kind ##__, 1, 2))
+
+/* Raw formatting function like pp_format.  */
+void diag_raw (const char*, ...) ATTR (format (__gcc_diag_raw__, 1, 2));
+void cdiag_raw (const char*, ...) ATTR (format (__gcc_cdiag_raw__, 1, 2));
+void tdiag_raw (const char*, ...) ATTR (format (gcc_tdiag_raw, 1, 2));
+void cxxdiag_raw (const char*, ...) ATTR (format (gcc_cxxdiag_raw, 1, 2));
+
+/* Basic formatting function_format.  */
+void diag (const char*, ...) FORMAT (diag);
+
+/* Diagnostic formatting function like error or warning declared
+   by the C front end.  */
+void cdiag (const char*, ...) FORMAT (cdiag);
+
+/* Diagnostic formatting function like error or warning declared
+   by the middle-end or back-end.  */
+void tdiag (const char*, ...) FORMAT (tdiag);
+
+/* Diagnostic formatting function like error or warning declared
+   by the C++ front-end.  */
+void cxxdiag (const char*, ...) FORMAT (cxxdiag);
+
+
+/* Verify that functions declared with __gcc_diag_raw__ attribute
+   are not subject to -Wformat-diag.  */
+
+void test_diag_raw (tree t, gimple *gc)
+{
+  diag_raw ("a  b");
+  diag_raw ("newline\n");
+  diag_raw ("lone period.");
+  diag_raw ("multiple punctuators: !!!");
+  diag_raw ("unbalanced paren (");
+  diag_raw ("keyword alignas and identifier_with_underscores");
+  diag_raw ("disable __builtin_abs with the -fno-builtin-abs option");
+  diag_raw ("who says I can't have no stinkin' contractions? ");
+
+  cdiag_raw ("__atomic_sync (%qE) == 7???", t);
+  tdiag_raw ("__builtin_abs (%E) < 0!?!", t);
+  cxxdiag_raw ("template <> int f (%E", t);
+}
+
+/* Verify that functions declared with the C front-end __gcc_cdiag__
+   attribute detect invalid whitespace in format strings.  */
+
+void test_cdiag_whitespace (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  /* Verify that strings of leading spaces don't trigger a warning.  */
+  cdiag (" a");
+  cdiag ("  b");
+  cdiag ("   c");
+  cdiag ("%< %>a");
+  cdiag ("%<  %>a");
+  cdiag ("a b");
+  cdiag ("a  b");           /* { dg-warning "unquoted sequence of 2 consecutive space characters" } */
+  cdiag ("a ");             /* { dg-warning "spurious trailing space" } */
+  cdiag ("a  ");            /* { dg-warning "spurious trailing space" } */
+  cdiag ("a%< %>");
+  cdiag ("a%< %>%< %>");
+  cdiag ("a%< %> ");        /* { dg-warning "spurious trailing space" } */
+  cdiag ("a%< %>  %< %>");  /* { dg-warning "unquoted sequence of 2 consecutive space characters" } */
+
+  /* It's debatable whether the following two formst strings should
+     be diagnosed.  They aren't only because it's simpler that way.  */
+  cdiag ("a %< %>");
+  cdiag ("a%< %> %< %>");
+
+  /* Exercise other whitespace characters.  */
+  cdiag ("a\fb");           /* { dg-warning "unquoted whitespace character '\\\\x0c'" } */
+  cdiag ("a\nb");           /* { dg-warning "unquoted whitespace character '\\\\x0a'" } */
+  cdiag ("a\rb");           /* { dg-warning "unquoted whitespace character '\\\\x0d'" } */
+  cdiag ("a\vb");           /* { dg-warning "unquoted whitespace character '\\\\x0b'" } */
+
+  cdiag ("First sentence.  And a next.");
+  cdiag ("First sentence.  not capitalized sentence"); /* { dg-warning "inconsistent capitalization" } */
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-diag"
+
+  /* Verify that the warning can be suppressed.  */
+  cdiag ("\ta\b    c\vb\n");
+
+#pragma GCC diagnostic pop
+}
+
+
+void test_cdiag_control (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  cdiag ("\1");             /* { dg-warning "unquoted control character '\\\\x01'" } */
+  cdiag ("a\ab");           /* { dg-warning "unquoted control character '\\\\x07'" } */
+  cdiag ("a\bb");           /* { dg-warning "unquoted control character '\\\\x08'" } */
+}
+
+
+void test_cdiag_punct (tree t, gimple *gc, int i)
+{
+  (void)&t; (void)&gc;
+
+  /* Exercise the period.  */
+  cdiag (".abc");           /* { dg-warning "spurious leading punctuation sequence .\.." } */
+  cdiag ("abc;");           /* { dg-warning "spurious trailing punctuation sequence .;." } */
+  /* Verify that sentences that start with an uppercase letter and end
+     in a period are not diagnosed.  */
+  cdiag ("This is a full sentence.");
+  cdiag ("Capitalized sentence (with a parethetical note).");
+  cdiag ("Not a full sentence;");   /* { dg-warning "spurious trailing punctuation sequence .;." } */
+  cdiag ("Neither is this one,");   /* { dg-warning "spurious trailing punctuation sequence .,." } */
+
+  /* Exercise the ellipsis.  */
+  cdiag ("this message...");
+  cdiag ("...continues here");
+  cdiag ("but...not here"); /* { dg-warning "unquoted sequence of 3 consecutive punctuation characters" } */
+
+  /* Verify that parenthesized sentences are accepted, even the whole
+     meesage (done in the C++ front end).  */
+  cdiag ("null argument where non-null required (argument %i)", i);
+  cdiag ("null (argument %i) where non-null required", i);
+  cdiag ("(see what comes next)");
+
+  /* Verify that only a single trailing colon is accepted.  */
+  cdiag ("candidates are:");
+  cdiag ("candidates are::"); /* { dg-warning "spurious trailing punctuation sequence .::." } */
+
+  /* Exercise C++.  */
+  cdiag ("C++ is cool");
+  cdiag ("this is c++");
+  cdiag ("you can do this in C++ but not in C");
+
+  /* Also verify that G++ is accepted.  */
+  cdiag ("G++ rocks");
+  cdiag ("this is accepted by g++");
+  cdiag ("valid in G++ (or g++) but not in gcc");
+
+  /* Exercise parenthetical note followed by a colon, semicolon,
+     or a comma.  */
+  cdiag ("found a bug (here):");
+  cdiag ("because of another bug (over there); fix it");
+
+  cdiag ("found foo (123): go look at it");
+  cdiag ("missed bar (abc); will try harder next time");
+
+  cdiag ("expected this (or that), got something else (or who knows what)");
+
+  /* Exercise parenthetical note with a question mark.  */
+  cdiag ("hmmm (did you really mean that?)");
+  cdiag ("error (did you mean %<foo()%>?)");
+  /* And a question mark after a parenthetical note.  */
+  cdiag ("did you mean this (or that)?");
+
+  /* But make sure unbalanced parenthese are diagnosed.  */
+  cdiag ("or this or the other)?");   /* { dg-warning "unbalanced punctuation character '\\\)'" } */
+
+  cdiag ("## Heading");               /* { dg-warning "spurious leading punctuation sequence .##." } */
+  cdiag ("## %s ##", "1");            /* { dg-warning "spurious (leading|trailing) punctuation sequence .##." } */
+
+  cdiag ("#1 priority");              /* { dg-warning "spurious leading punctuation sequence .#." } */
+  cdiag ("priority #2");
+
+  /* Quoting.  */
+  cdiag ("\"quoted\"");
+  cdiag ("\"quoted\" string");
+  cdiag ("this is a \"string in quotes\"");
+  cdiag ("\"missing closing quote");  /* { dg-warning "unterminated quote character '\"'" } */
+
+  /* PR translation/90121 - punctuation character after a space.  */
+  cdiag ("bad version : 1");          /* { dg-warning "space followed by punctuation character ':'" } */
+  cdiag ("problem ; fix it");         /* { dg-warning "space followed by punctuation character ';'" } */
+  cdiag ("End . not.");               /* { dg-warning "space followed by punctuation character '.'" } */
+  cdiag ("it is bad , very bad");     /* { dg-warning "space followed by punctuation character ','" } */
+  cdiag ("say what ?");               /* { dg-warning "space followed by punctuation character '?'" } */
+
+  /* But these are okay after a space.  But should they be?  */
+  cdiag ("1 / 2");
+  cdiag ("2 + 3");
+  cdiag ("2 - 3");
+}
+
+void test_cdiag_punct_balance (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  /* Less-than and greater than.  */
+  cdiag ("a < b");          /* { dg-warning "unbalanced punctuation character '<' in format" } */
+  cdiag ("must be > 0");    /* { dg-warning "unbalanced punctuation character '>' in format" } */
+
+  cdiag ("f()");            /* { dg-warning "spurious trailing punctuation sequence .\\\(\\\)." } */
+  cdiag ("g(1)");
+  cdiag ("(");              /* { dg-warning "spurious leading punctuation character|unbalanced" } */
+  cdiag ("()");             /* { dg-warning "spurious leading punctuation sequence" } */
+  cdiag (")");              /* { dg-warning "unbalanced punctuation character '\\\)'" } */
+  cdiag ("f()g");           /* { dg-warning "unquoted sequence of 2 consecutive punctuation characters" } */
+  cdiag ("illegal operand (1)");
+}
+
+
+void test_cdiag_nongraph (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  cdiag ("a\376b");         /* { dg-warning "unquoted non-graph character '\\\\xfe'" } */
+  cdiag ("a\377b");         /* { dg-warning "unquoted non-graph character '\\\\xff'" } */
+}
+
+
+void test_cdiag_attribute (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  cdiag ("attribute foo");
+  cdiag ("this is attribute bar");
+  cdiag ("bad __attribute bar");        /* { dg-warning "unquoted attribute" } */
+  cdiag ("__attribute__ (foobar) bad"); /* { dg-warning "unquoted attribute" } */
+  cdiag ("__attribute__ ((foobar))");   /* { dg-warning "unquoted attribute" } */
+  cdiag ("__attribute__ (xxx))");       /* { dg-warning "unquoted attribute" } */
+  /* { dg-warning "unbalanced punctuation character '\\\)'" "xxx" { target *-*-* } .-1 } */
+  cdiag ("__attribute__ ((yyy)))");     /* { dg-warning "unquoted attribute" } */
+  /* { dg-warning "unbalanced punctuation character '\\\)'" "yyy" { target *-*-* } .-1 } */
+  cdiag ("__attribute__ ((zzz)");       /* { dg-warning "unquoted attribute" } */
+  /* { dg-warning "unbalanced punctuation character '\\\('" "zzz" { target *-*-* } .-1 } */
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-diag"
+
+  /* Verify that the warning can be suppressed.  */
+  cdiag ("__attribute__ (((");
+
+#pragma GCC diagnostic pop
+}
+
+void test_cdiag_builtin (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  cdiag ("__builtin_abort");    /* { dg-warning "unquoted name of built-in function '__builtin_abort'" } */
+  cdiag ("in __builtin_trap");  /* { dg-warning "unquoted name of built-in function '__builtin_trap'" } */
+  cdiag ("__builtin_xyz bites");/* { dg-warning "unquoted name of built-in function '__builtin_xyz'" } */
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-diag"
+
+  /* Verify that the warning can be suppressed.  */
+  cdiag ("__builtin____with____lots__of__underscores");
+
+#pragma GCC diagnostic pop
+}
+
+
+void test_cdiag_option (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  cdiag ("%<-Wall%>");
+  cdiag ("use option %<-Wextra%> to enable additinal warnings");
+
+  cdiag ("-O2 is fast");        /* { dg-warning "unquoted option name '-O2'" } */
+  cdiag ("but -O3 is faster");  /* { dg-warning "unquoted option name '-O3'" } */
+
+  cdiag ("get --help");         /* { dg-warning "unquoted option name '--help'" } */
+  cdiag ("enable -m32");        /* { dg-warning "unquoted option name '-m32'" } */
+  cdiag ("value is -12");
+  cdiag ("foo-O2");
+  cdiag ("a-W");
+}
+
+
+void test_cdiag_keyword (tree t, gimple *gc)
+{
+  cdiag ("alignasi");
+  cdiag ("malignofer or alignofus");
+  cdiag ("use alignof");        /* { dg-warning "unquoted keyword 'alignof'" } */
+  cdiag ("or _Alignof");        /* { dg-warning " keyword '_Alignof'" } */
+  cdiag ("_Pragma too");        /* { dg-warning " keyword '_Pragma'" } */
+
+  cdiag ("a #error directive"); /* { dg-warning "unquoted preprocessing directive '#error'" } */
+  cdiag ("#include file");      /* { dg-warning "unquoted preprocessing directive '#include'" } */
+  cdiag ("but #pragma foobar"); /* { dg-warning "unquoted preprocessing directive '#pragma'" } */
+  cdiag ("pragma foobar is okay");
+  cdiag ("or even # pragma is fine");
+
+  /* Exercise qualifiers.  */
+  cdiag ("const function");
+  cdiag ("const-qualified variable"); /* { dg-warning "unquoted keyword 'const-qualified'" } */
+  /* { dg-message "use '%<const%>-qualified' instead" "const-qualified" { target *-*-* } .-1 } */
+  cdiag ("a const %qD", t);     /* { dg-warning "unquoted keyword 'const'" } */
+  cdiag ("restrict %qE", t);    /* { dg-warning "unquoted keyword 'restrict'" } */
+  cdiag ("volatile %qT", t);    /* { dg-warning "unquoted keyword 'volatile'" } */
+  cdiag ("const %qD and restrict %qE or volatile %qT", t, t, t);
+  /* { dg-warning "unquoted keyword 'const'" "" { target *-*-* } .-1 } */
+  /* { dg-warning "unquoted keyword 'restrict'" "" { target *-*-* } .-2 } */
+  /* { dg-warning "unquoted keyword 'volatile'" "" { target *-*-* } .-3 } */
+
+  cdiag ("an offsetof here");   /* { dg-warning "unquoted keyword 'offsetof" } */
+  cdiag ("sizeof x");           /* { dg-warning "unquoted keyword 'sizeof" } */
+  cdiag ("have typeof");        /* { dg-warning "unquoted keyword 'typeof" } */
+
+  /* Words that are not keywords are so are not expected to be quoted.  */
+  cdiag ("break rules");
+  cdiag ("if we continue by default for a short while else do nothing");
+  cdiag ("register a function for unsigned extern to void const reads");
+  cdiag ("or volatile access");
+}
+
+
+void test_cdiag_operator (tree t, gimple *gc)
+{
+  cdiag ("x != 0");             /* { dg-warning "unquoted operator '!='" } */
+  cdiag ("logical &&");         /* { dg-warning "unquoted operator '&&" } */
+  cdiag ("+= operator");        /* { dg-warning "unquoted operator '\\\+=" } */
+  cdiag ("a == b");             /* { dg-warning "unquoted operator '=='" } */
+  cdiag ("++a");                /* { dg-warning "unquoted operator '\\\+\\\+'" } */
+  cdiag ("b--");                /* { dg-warning "unquoted operator '--'" } */
+  cdiag ("1 << 2");             /* { dg-warning "unquoted operator '<<'" } */
+  cdiag (">> here <<");         /* { dg-warning "unquoted operator '>>|<<'" } */
+}
+
+
+void test_cdiag_type_name (tree t, gimple *gc)
+{
+  cdiag ("the word character should not be quoted");
+  cdiag ("but char should be"); /* { dg-warning "unquoted keyword 'char'" } */
+
+  cdiag ("unsigned char should be quoted");     /* { dg-warning "unquoted type name 'unsigned char'" } */
+  cdiag ("but unsigned character is fine");
+
+  cdiag ("as should int");      /* { dg-warning "unquoted keyword 'int'" } */
+  cdiag ("and signed int");     /* { dg-warning "unquoted type name 'signed int'" } */
+  cdiag ("and also unsigned int");     /* { dg-warning "unquoted type name 'unsigned int'" } */
+  cdiag ("very long thing");
+  cdiag ("use long long here"); /* { dg-warning "unquoted type name 'long long'" } */
+
+  cdiag ("have a floating type");
+  cdiag ("found float type");   /* { dg-warning "unquoted keyword 'float'" } */
+
+  cdiag ("wchar_t is wide");    /* { dg-warning "unquoted identifier or keyword 'wchar_t'" } */
+}
+
+
+void test_cdiag_identifier (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  cdiag ("private _x ident");   /* { dg-warning "unquoted identifier or keyword '_x'" } */
+  cdiag ("and another __y");    /* { dg-warning "unquoted identifier or keyword '__y'" } */
+  cdiag ("ident z_ with trailing underscore");   /* { dg-warning "unquoted identifier or keyword 'z_'" } */
+  cdiag ("v_ variable");        /* { dg-warning "unquoted identifier or keyword 'v_'" } */
+  cdiag ("call foo_bar");       /* { dg-warning "unquoted identifier or keyword 'foo_bar'" } */
+  cdiag ("unqoted x_y ident");  /* { dg-warning "unquoted identifier or keyword 'x_y'" } */
+
+  cdiag ("size_t type");        /* { dg-warning "unquoted identifier or keyword 'size_t'" } */
+  cdiag ("bigger than INT_MAX");/* { dg-warning "unquoted identifier or keyword 'INT_MAX'" } */
+
+  cdiag ("quoted ident %<a_b%>");
+  cdiag ("another quoted identifier %<x_%> here");
+}
+
+
+void test_cdiag_bad_words (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  cdiag ("aren't you dumb?");  /* { dg-warning "bare apostrophe ''' in format" } */
+  cdiag ("bitfields suck");    /* { dg-warning "misspelled term 'bitfields' in format; use 'bit-fields' instead" } */
+  cdiag ("invalid bitfield");  /* { dg-warning "misspelled term 'bitfield' in format; use 'bit-field' instead" } */
+  cdiag ("bad builtin function");  /* { dg-warning "misspelled term 'builtin function' in format; use 'built-in function' instead" } */
+  cdiag ("bad builtin function");  /* { dg-warning "misspelled term 'builtin function' in format; use 'built-in function' instead" } */
+  cdiag ("builtin function x");    /* { dg-warning "misspelled term 'builtin function' in format; use 'built-in function' instead" } */
+  cdiag ("builtin functions disabled");    /* { dg-warning "misspelled term 'builtin functions' in format; use 'built-in functions' instead" } */
+  cdiag ("enable builtin functions");      /* { dg-warning "misspelled term 'builtin functions' in format; use 'built-in functions' instead" } */
+  cdiag ("you can't do that"); /* { dg-warning "contraction 'can't' in format" } */
+  cdiag ("you can%'t do that");/* { dg-warning "contraction 'can%'t' in format" } */
+  cdiag ("Can%'t touch this.");/* { dg-warning "contraction 'Can%'t' in format" } */
+  cdiag ("on the commandline");/* { dg-warning "misspelled term 'commandline' in format; use 'command line' instead" } */
+  cdiag ("command line option");/* { dg-warning "misspelled term 'command line option' in format; use 'command-line option' instead" } */
+  cdiag ("it mustn't be");     /* { dg-warning "contraction 'mustn't' in format" } */
+  cdiag ("isn't that silly?"); /* { dg-warning "bare apostrophe ''' in format" } */
+
+  cdiag ("can not do this");   /* { dg-warning "misspelled term 'can not' in format; use 'cannot' instead" } */
+  cdiag ("you can not");       /* { dg-warning "misspelled term 'can not' in format; use 'cannot' instead" } */
+
+  /* See PR target/90157 - aarch64: unnecessary abbreviation in diagnostic */
+  cdiag ("Mising arg.");       /* { dg-warning "misspelled term 'arg' in format; use 'argument' instead" } */
+  cdiag ("2 args: a and b");   /* { dg-warning "misspelled term 'args' in format; use 'arguments' instead" } */
+  cdiag ("arg 1");             /* { dg-warning "misspelled term 'arg' in format; use 'argument' instead" } */
+  cdiag ("Args are wrong.");   /* { dg-warning "misspelled term 'Args' in format; use 'arguments' instead" } */
+  cdiag ("bad arg");           /* { dg-warning "misspelled term 'arg' in format; use 'argument' instead" } */
+  cdiag ("two args");          /* { dg-warning "misspelled term 'args' in format; use 'arguments' instead" } */
+  cdiag ("args 1 and 2");      /* { dg-warning "misspelled term 'args' in format; use 'arguments' instead" } */
+
+  cdiag ("Reg A");             /* { dg-warning "misspelled term 'Reg' in format; use 'register' instead" } */
+  cdiag ("regs A and B");      /* { dg-warning "misspelled term 'regs' in format; use 'registers' instead" } */
+  cdiag ("no regs");           /* { dg-warning "misspelled term 'regs' in format; use 'registers' instead" } */
+
+  /* Verify words that end in "arg" and "args" or "reg" and "regs" are
+     not diagnosed.  */
+  cdiag ("gulmarg and balfarg");
+  cdiag ("ademargs or toshargs");
+  cdiag ("talk to Greg");
+  cdiag ("prepreg is a fabric");
+  cdiag ("there are dregs in my wine");
+}
+
+
+void test_cdiag_directive (tree t, gimple *gc)
+{
+  (void)&t; (void)&gc;
+
+  cxxdiag ("%<%s%>", "");     /* { dg-warning "quoted '%s' directive in format" } */
+  /* This was asked to be diagnosed in PR #90158 but there, the \"%s\"
+     is in parenheses which ends up getting diagnosed because of
+     the two consecutive punctuation characters, ( and ".  */
+  cdiag ("\"%s\"", "");       /* { dg-warning "quoted '%s' directive in format" } */
+
+  /* Make sure quoted paired tokens are not diagnosed.  */
+  cdiag ("%<'%>");
+  cdiag ("%<\"%>");
+  cdiag ("%<<%>");
+  cdiag ("%<>%>");
+  cdiag ("%<(%>");
+  cdiag ("%<)%>");
+  cdiag ("%<[%>");
+  cdiag ("%<]%>");
+
+  cdiag ("%<'%> %<\"%> %<>%> %<<%> %<)%> %<(%> %<]%> %<[%>");
+}
diff --git a/gcc/testsuite/gcc.dg/funroll-loops-all.c b/gcc/testsuite/gcc.dg/funroll-loops-all.c
index 9cdc9017255..ab12df1c431 100644
--- a/gcc/testsuite/gcc.dg/funroll-loops-all.c
+++ b/gcc/testsuite/gcc.dg/funroll-loops-all.c
@@ -1,4 +1,4 @@
 /* PR 17594 */
 /* { dg-do compile } */
 /* { dg-options "-funroll-loops-all" } */
-/* { dg-error "unrecognized command line option '-funroll-loops-all'" "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-funroll-loops-all'" "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/misc-column.c b/gcc/testsuite/gcc.dg/misc-column.c
index e68300bfc29..c036060dd74 100644
--- a/gcc/testsuite/gcc.dg/misc-column.c
+++ b/gcc/testsuite/gcc.dg/misc-column.c
@@ -13,7 +13,7 @@ extern void bar();
 
 void foo (void)
 {
-  if (a == b) /* { dg-warning "9:comparing floating point with" } */
+  if (a == b) /* { dg-warning "9:comparing floating-point values with" } */
     bar ();
 
   if (p < q) /* { dg-warning "9:comparison of distinct pointer types" } */
diff --git a/gcc/testsuite/gcc.dg/opts-5.c b/gcc/testsuite/gcc.dg/opts-5.c
index ab1e6f91d3c..80bead84855 100644
--- a/gcc/testsuite/gcc.dg/opts-5.c
+++ b/gcc/testsuite/gcc.dg/opts-5.c
@@ -2,4 +2,4 @@
 /* { dg-do compile } */
 /* { dg-options "-fstack-limit" } */
 
-/* { dg-error "unrecognized command line option" "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option" "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/pr28322-2.c b/gcc/testsuite/gcc.dg/pr28322-2.c
index 89dd15390f8..c9e5e228a7b 100644
--- a/gcc/testsuite/gcc.dg/pr28322-2.c
+++ b/gcc/testsuite/gcc.dg/pr28322-2.c
@@ -8,5 +8,5 @@ int foo (void)
   return i;
 }
 
-/* { dg-warning "unrecognized command line option .-Wno-foobar." "" { target *-*-* } 0 } */
+/* { dg-warning "unrecognized command-line option .-Wno-foobar." "" { target *-*-* } 0 } */
 
diff --git a/gcc/testsuite/gcc.dg/pr28322-3.c b/gcc/testsuite/gcc.dg/pr28322-3.c
index e714a3cc6f7..85926ade9e8 100644
--- a/gcc/testsuite/gcc.dg/pr28322-3.c
+++ b/gcc/testsuite/gcc.dg/pr28322-3.c
@@ -6,5 +6,5 @@ void foo(void)
 {
   int i =  1;
 }
-/* { dg-message "unrecognized command line option .-fno-foobar." "f" { target *-*-* } 0 } */
-/* { dg-message "unrecognized command line option .-mno-foobar." "m" { target *-*-* } 0 } */
+/* { dg-message "unrecognized command-line option .-fno-foobar." "f" { target *-*-* } 0 } */
+/* { dg-message "unrecognized command-line option .-mno-foobar." "m" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/pr60087.c b/gcc/testsuite/gcc.dg/pr60087.c
index c6cf7aa4607..b3bd811caea 100644
--- a/gcc/testsuite/gcc.dg/pr60087.c
+++ b/gcc/testsuite/gcc.dg/pr60087.c
@@ -7,8 +7,8 @@ foo (unsigned int ui, int i)
 {
   const unsigned char uc = 0;
   _Bool b;
-  b = 0 != ~uc; /* { dg-warning "9:promoted ~unsigned is always non-zero" } */
-  b = 2 != ~uc; /* { dg-warning "9:comparison of promoted ~unsigned with constant" } */
-  b = uc == ~uc; /* { dg-warning "10:comparison of promoted ~unsigned with unsigned" } */
+  b = 0 != ~uc; /* { dg-warning "9:promoted bitwise complement of an unsigned value is always nonzero" } */
+  b = 2 != ~uc; /* { dg-warning "9:comparison of promoted bitwise complement of an unsigned value with constant" } */
+  b = uc == ~uc; /* { dg-warning "10:comparison of promoted bitwise complement of an unsigned value with unsigned" } */
   b = i == ui; /* { dg-warning "9:comparison of integer expressions of different signedness" } */
 }
diff --git a/gcc/testsuite/gcc.dg/pr78957.c b/gcc/testsuite/gcc.dg/pr78957.c
index 305023e1870..432211935b9 100644
--- a/gcc/testsuite/gcc.dg/pr78957.c
+++ b/gcc/testsuite/gcc.dg/pr78957.c
@@ -1,6 +1,6 @@
 /* PR driver/78957 */
 /* { dg-do compile } */
 /* { dg-options "-fno-sso-struct=none" } */
-/* { dg-error "unrecognized command line option" "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option" "" { target *-*-* } 0 } */
 
 int i;
diff --git a/gcc/testsuite/gcc.dg/pr8715.c b/gcc/testsuite/gcc.dg/pr8715.c
index e45e77c09f4..2878a48a4d3 100644
--- a/gcc/testsuite/gcc.dg/pr8715.c
+++ b/gcc/testsuite/gcc.dg/pr8715.c
@@ -7,7 +7,7 @@ int foo()
 {
   unsigned char b = '1';
 
-  bool x = ~b; /* { dg-warning "promoted ~unsigned is always non-zero" } */
+  bool x = ~b; /* { dg-warning "promoted bitwise complement of an unsigned value is always nonzero" } */
 
   return 0;
 }
diff --git a/gcc/testsuite/gcc.dg/simd-2.c b/gcc/testsuite/gcc.dg/simd-2.c
index e5462390eff..d24e076218d 100644
--- a/gcc/testsuite/gcc.dg/simd-2.c
+++ b/gcc/testsuite/gcc.dg/simd-2.c
@@ -33,10 +33,10 @@ hanneke ()
   foo = a; /* { dg-error "incompatible types when assigning" } */
 
   /* Casted assignment between scalar and SIMD of same size.  */
-  foo = (typeof (foo)) foo2; /* { dg-error "aggregate value used where a floating point was expected" } */
+  foo = (typeof (foo)) foo2; /* { dg-error "aggregate value used where a floating-point was expected" } */
 
   /* Casted assignment between scalar and SIMD of different size.  */
-  foo1 = (typeof (foo1)) foo2; /* { dg-error "aggregate value used where a floating point was expected" } */
+  foo1 = (typeof (foo1)) foo2; /* { dg-error "aggregate value used where a floating-point was expected" } */
 
   /* Operators on compatible SIMD types.  */
   a += b + b;
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-1.c b/gcc/testsuite/gcc.dg/spellcheck-options-1.c
index cd5fdcacfdb..bebb494b6af 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-1.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-1.c
@@ -1,4 +1,4 @@
 /* { dg-do compile } */
 /* { dg-options "-Wcoercion" } */
-/* { dg-error "unrecognized command line option '-Wcoercion'; did you mean '-Wconversion'?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-Wcoercion'; did you mean '-Wconversion'?"  "" { target *-*-* } 0 } */
 
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-10.c b/gcc/testsuite/gcc.dg/spellcheck-options-10.c
index 1957205593b..77c6b5494f5 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-10.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-10.c
@@ -3,4 +3,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "-fno-if-convert" } */
-/* { dg-error "unrecognized command line option .-fno-if-convert.; did you mean .-fno-if-conversion.?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option .-fno-if-convert.; did you mean .-fno-if-conversion.?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-12.c b/gcc/testsuite/gcc.dg/spellcheck-options-12.c
index b5e65e54a39..9fbd944bcaf 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-12.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-12.c
@@ -4,4 +4,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "-fno-stack-protector-explicit" } */
-/* { dg-error "unrecognized command line option .-fno-stack-protector-explicit.; did you mean .-fstack-protector-explicit.." "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option .-fno-stack-protector-explicit.; did you mean .-fstack-protector-explicit.." "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-13.c b/gcc/testsuite/gcc.dg/spellcheck-options-13.c
index 0d00642d87e..94db0c5a458 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-13.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-13.c
@@ -2,4 +2,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "-fsanitize" } */
-/* { dg-error "unrecognized command line option '-fsanitize'; did you mean '-fsanitize='?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-fsanitize'; did you mean '-fsanitize='?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-18.c b/gcc/testsuite/gcc.dg/spellcheck-options-18.c
index 387d04e3743..26694f945a8 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-18.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-18.c
@@ -1,3 +1,3 @@
 /* { dg-do compile } */
 /* { dg-options "-fprofile-update" } */
-/* { dg-error "unrecognized command line option '-fprofile-update'; did you mean '-fprofile-update='?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-fprofile-update'; did you mean '-fprofile-update='?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-19.c b/gcc/testsuite/gcc.dg/spellcheck-options-19.c
index 5a104763993..68e85a71d77 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-19.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-19.c
@@ -1,3 +1,3 @@
 /* { dg-do compile } */
 /* { dg-options "-fno-sanitize" } */
-/* { dg-error "unrecognized command line option '-fno-sanitize'; did you mean '-fno-sanitize='?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-fno-sanitize'; did you mean '-fno-sanitize='?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-2.c b/gcc/testsuite/gcc.dg/spellcheck-options-2.c
index 786266df390..5156ad3ef17 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-2.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
 /* { dg-options "-Wthis-should-not-get-a-hint" } */
 /* { dg-bogus "did you mean" "" { target *-*-* } 0 } */
-/* { dg-error "unrecognized command line option '-Wthis-should-not-get-a-hint'"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-Wthis-should-not-get-a-hint'"  "" { target *-*-* } 0 } */
 
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-20.c b/gcc/testsuite/gcc.dg/spellcheck-options-20.c
index dfc6149e023..d856d5a0810 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-20.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-20.c
@@ -1,3 +1,3 @@
 /* { dg-do compile } */
 /* { dg-options "-Walloc-size-larger-than" } */
-/* { dg-error "unrecognized command line option '-Walloc-size-larger-than'; did you mean '-Walloc-size-larger-than='?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-Walloc-size-larger-than'; did you mean '-Walloc-size-larger-than='?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-3.c b/gcc/testsuite/gcc.dg/spellcheck-options-3.c
index 4133df9555e..cecc50299bb 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-3.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-3.c
@@ -3,4 +3,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "-sanitize=address" } */
-/* { dg-error "unrecognized command line option '-sanitize=address'; did you mean '-fsanitize=address'?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-sanitize=address'; did you mean '-fsanitize=address'?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-4.c b/gcc/testsuite/gcc.dg/spellcheck-options-4.c
index 252376fd757..ab730edea93 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-4.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-4.c
@@ -3,4 +3,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "-sanitize-recover=integer-divide-by-0" } */
-/* { dg-error "unrecognized command line option '-sanitize-recover=integer-divide-by-0'; did you mean '-fsanitize-recover=integer-divide-by-zero'?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-sanitize-recover=integer-divide-by-0'; did you mean '-fsanitize-recover=integer-divide-by-zero'?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-5.c b/gcc/testsuite/gcc.dg/spellcheck-options-5.c
index 9a02bb7afbb..097faf0bce1 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-5.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-5.c
@@ -3,4 +3,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "-no-sanitize=all" } */
-/* { dg-error "unrecognized command line option '-no-sanitize=all'; did you mean '-fno-sanitize=all'?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-no-sanitize=all'; did you mean '-fno-sanitize=all'?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-6.c b/gcc/testsuite/gcc.dg/spellcheck-options-6.c
index 4d6bf0d945d..591e2146138 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-6.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-6.c
@@ -3,4 +3,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "-fwarn-no-abi-tag" } */
-/* { dg-error "unrecognized command line option '-fwarn-no-abi-tag'; did you mean '--warn-no-abi-tag'?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-fwarn-no-abi-tag'; did you mean '--warn-no-abi-tag'?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-7.c b/gcc/testsuite/gcc.dg/spellcheck-options-7.c
index ca893994983..277d7d46876 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-7.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-7.c
@@ -3,4 +3,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "-tls-model=global-dynamic" } */
-/* { dg-error "unrecognized command line option '-tls-model=global-dynamic'; did you mean '-ftls-model=global-dynamic'?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-tls-model=global-dynamic'; did you mean '-ftls-model=global-dynamic'?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-8.c b/gcc/testsuite/gcc.dg/spellcheck-options-8.c
index 2cc6c1ff1fe..43cd5ac31fa 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-8.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-8.c
@@ -3,4 +3,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "--Wno-narrowing" } */
-/* { dg-error "unrecognized command line option '--Wno-narrowing'; did you mean '-Wno-narrowing'?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '--Wno-narrowing'; did you mean '-Wno-narrowing'?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/spellcheck-options-9.c b/gcc/testsuite/gcc.dg/spellcheck-options-9.c
index 768b6f8c2a9..509f9e5936b 100644
--- a/gcc/testsuite/gcc.dg/spellcheck-options-9.c
+++ b/gcc/testsuite/gcc.dg/spellcheck-options-9.c
@@ -3,4 +3,4 @@
 
 /* { dg-do compile } */
 /* { dg-options "-fmo-unroll-loops" } */
-/* { dg-error "unrecognized command line option '-fmo-unroll-loops'; did you mean '-fno-unroll-loops'?"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-fmo-unroll-loops'; did you mean '-fno-unroll-loops'?"  "" { target *-*-* } 0 } */
diff --git a/gcc/testsuite/gcc.dg/warn-abs-1.c b/gcc/testsuite/gcc.dg/warn-abs-1.c
index a7f2ab20014..ccd61efbe1e 100644
--- a/gcc/testsuite/gcc.dg/warn-abs-1.c
+++ b/gcc/testsuite/gcc.dg/warn-abs-1.c
@@ -34,9 +34,9 @@ tst_notint (float *pf, double *pd, _Complex double *pc)
 void
 tst_notfloat (int *pi, long *pl, complex double *pc)
 {
-  *pi = fabsf (*pi);  /* { dg-warning "using floating point absolute value function" } */
-  *pl = fabs (*pl);   /* { dg-warning "using floating point absolute value function" } */
-  *pc = fabs (*pc);   /* { dg-warning "using floating point absolute value function" } */
+  *pi = fabsf (*pi);  /* { dg-warning "using floating-point absolute value function" } */
+  *pl = fabs (*pl);   /* { dg-warning "using floating-point absolute value function" } */
+  *pc = fabs (*pc);   /* { dg-warning "using floating-point absolute value function" } */
 }
 
 void
diff --git a/gcc/testsuite/gcc.target/i386/spellcheck-options-5.c b/gcc/testsuite/gcc.target/i386/spellcheck-options-5.c
index 61946f6543c..f5b5d41c9f5 100644
--- a/gcc/testsuite/gcc.target/i386/spellcheck-options-5.c
+++ b/gcc/testsuite/gcc.target/i386/spellcheck-options-5.c
@@ -2,4 +2,4 @@
 
 /* { dg-do compile { target *-*-linux* *-*-gnu* } } */
 /* { dg-options "-mandroidX" } */
-/* { dg-error "unrecognized command line option '-mandroidX'; did you mean '-mandroid'"  "" { target *-*-* } 0 } */
+/* { dg-error "unrecognized command-line option '-mandroidX'; did you mean '-mandroid'"  "" { target *-*-* } 0 } */