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[PR,d/88990] Committed fix for ICE in get_symbol_decl

Message ID CABOHX+cc+Tp4xP5yvYOoXSJG8Bz-NtVMYyJFA1ZvARRD0J0RGw@mail.gmail.com
State New
Headers show
Series [PR,d/88990] Committed fix for ICE in get_symbol_decl | expand

Commit Message

Iain Buclaw March 15, 2019, 1:39 p.m. UTC 
Hi,

The patch merges the D front-end implementation with dmd upstream 8d4c876c6.

Backports fix where the extern storage class flag was wrongly
propagated to function scope when starting the semantic pass on the
body.

Bootstrapped and regression tested on x86_64-linux-gnu.

Committed to trunk as r269708.
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Patch

diff --git a/gcc/d/dmd/MERGE b/gcc/d/dmd/MERGE
index 5e4abe6f33f..230fd12db2b 100644
--- a/gcc/d/dmd/MERGE
+++ b/gcc/d/dmd/MERGE
@@ -1,4 +1,4 @@ 
-19b1454b5ca7b1036ea5fde197d91d4a7d05c0a5
+8d4c876c658608e8f6e653803c534a9e15618f57
 
 The first line of this file holds the git revision number of the last
 merge done from the dlang/dmd repository.
diff --git a/gcc/d/dmd/declaration.c b/gcc/d/dmd/declaration.c
index 6372e39f3f6..835c6aef831 100644
--- a/gcc/d/dmd/declaration.c
+++ b/gcc/d/dmd/declaration.c
@@ -2008,6 +2008,7 @@  bool VarDeclaration::isDataseg()
         else if (storage_class & (STCstatic | STCextern | STCtls | STCgshared) ||
                  parent->isModule() || parent->isTemplateInstance() || parent->isNspace())
         {
+            assert(!isParameter() && !isResult());
             isdataseg = 1; // It is in the DataSegment
         }
     }
diff --git a/gcc/d/dmd/func.c b/gcc/d/dmd/func.c
index 4b7c2233955..afba82aac7d 100644
--- a/gcc/d/dmd/func.c
+++ b/gcc/d/dmd/func.c
@@ -1437,7 +1437,7 @@  void FuncDeclaration::semantic3(Scope *sc)
         sc2->sw = NULL;
         sc2->fes = fes;
         sc2->linkage = LINKd;
-        sc2->stc &= ~(STCauto | STCscope | STCstatic | STCabstract |
+        sc2->stc &= ~(STCauto | STCscope | STCstatic | STCextern | STCabstract |
                         STCdeprecated | STCoverride |
                         STC_TYPECTOR | STCfinal | STCtls | STCgshared | STCref | STCreturn |
                         STCproperty | STCnothrow | STCpure | STCsafe | STCtrusted | STCsystem);
diff --git a/gcc/testsuite/gdc.test/runnable/test19734.d b/gcc/testsuite/gdc.test/runnable/test19734.d
new file mode 100644
index 00000000000..efa7da3b019
--- /dev/null
+++ b/gcc/testsuite/gdc.test/runnable/test19734.d
@@ -0,0 +1,38 @@ 
+// https://issues.dlang.org/show_bug.cgi?id=19734
+// REQUIRED_ARGS: -main
+
+class C19734
+{
+    import core.stdc.stdarg;
+
+    extern
+    {
+        // Invalid 'this' parameter because of applied 'extern' storage class.
+        void testin(typeof(this) p)
+        in { assert(this is p); }
+        body
+        {
+        }
+
+        // Undefined reference to __result.
+        int testout()
+        out { assert(__result == 2); }
+        body
+        {
+            return 2;
+        }
+
+        // Undefined reference to var.
+        int testlocal()
+        {
+            int var;
+            return var + 2;
+        }
+
+        // Variable _argptr cannot have initializer.
+        int testvarargs(...)
+        {
+            return 0;
+        }
+    }
+}
diff --git a/gcc/testsuite/gdc.test/runnable/test19735.d b/gcc/testsuite/gdc.test/runnable/test19735.d
new file mode 100644
index 00000000000..8a1a5e7d871
--- /dev/null
+++ b/gcc/testsuite/gdc.test/runnable/test19735.d
@@ -0,0 +1,22 @@ 
+// https://issues.dlang.org/show_bug.cgi?id=19735
+
+extern int test1(int par)
+{
+    int var = 42;
+    return var + par;
+}
+
+extern
+{
+    int test2(int par)
+    {
+        int var = 42;
+        return var + par;
+    }
+}
+
+void main()
+{
+    assert(test1(1) == test2(1));
+}
+