diff mbox series

[08/10] i386: Use ix86_output_ssemov for DFmode TYPE_SSEMOV

Message ID 20200215152628.32068-9-hjl.tools@gmail.com
State New
Headers show
Series i386: Properly encode xmm16-xmm31/ymm16-ymm31 for vector move | expand

Commit Message

H.J. Lu Feb. 15, 2020, 3:26 p.m. UTC 
There is no need to set mode attribute to XImode nor V8DFmode since
ix86_output_ssemov can properly encode xmm16-xmm31 registers with and
without AVX512VL.

gcc/

	PR target/89229
	* config/i386/i386.md (*movdf_internal): Call ix86_output_ssemov
	for TYPE_SSEMOV.  Remove TARGET_AVX512F, TARGET_PREFER_AVX256,
	TARGET_AVX512VL and ext_sse_reg_operand check.

gcc/testsuite/

	PR target/89229
	* gcc.target/i386/pr89229-6a.c: New test.
	* gcc.target/i386/pr89229-6b.c: Likewise.
	* gcc.target/i386/pr89229-6c.c: Likewise.
---
 gcc/config/i386/i386.md                    | 44 ++--------------------
 gcc/testsuite/gcc.target/i386/pr89229-6a.c | 16 ++++++++
 gcc/testsuite/gcc.target/i386/pr89229-6b.c |  7 ++++
 gcc/testsuite/gcc.target/i386/pr89229-6c.c |  6 +++
 4 files changed, 32 insertions(+), 41 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/i386/pr89229-6a.c
 create mode 100644 gcc/testsuite/gcc.target/i386/pr89229-6b.c
 create mode 100644 gcc/testsuite/gcc.target/i386/pr89229-6c.c
diff mbox series

Patch

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index fdf0e5a8802..01892992adb 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -3307,37 +3307,7 @@  (define_insn "*movdf_internal"
       return standard_sse_constant_opcode (insn, operands);
 
     case TYPE_SSEMOV:
-      switch (get_attr_mode (insn))
-	{
-	case MODE_DF:
-	  if (TARGET_AVX && REG_P (operands[0]) && REG_P (operands[1]))
-	    return "vmovsd\t{%d1, %0|%0, %d1}";
-	  return "%vmovsd\t{%1, %0|%0, %1}";
-
-	case MODE_V4SF:
-	  return "%vmovaps\t{%1, %0|%0, %1}";
-	case MODE_V8DF:
-	  return "vmovapd\t{%g1, %g0|%g0, %g1}";
-	case MODE_V2DF:
-	  return "%vmovapd\t{%1, %0|%0, %1}";
-
-	case MODE_V2SF:
-	  gcc_assert (!TARGET_AVX);
-	  return "movlps\t{%1, %0|%0, %1}";
-	case MODE_V1DF:
-	  gcc_assert (!TARGET_AVX);
-	  return "movlpd\t{%1, %0|%0, %1}";
-
-	case MODE_DI:
-	  /* Handle broken assemblers that require movd instead of movq.  */
-	  if (!HAVE_AS_IX86_INTERUNIT_MOVQ
-	      && (GENERAL_REG_P (operands[0]) || GENERAL_REG_P (operands[1])))
-	    return "%vmovd\t{%1, %0|%0, %1}";
-	  return "%vmovq\t{%1, %0|%0, %1}";
-
-	default:
-	  gcc_unreachable ();
-	}
+      return ix86_output_ssemov (insn, operands);
 
     default:
       gcc_unreachable ();
@@ -3391,10 +3361,7 @@  (define_insn "*movdf_internal"
 
 	       /* xorps is one byte shorter for non-AVX targets.  */
 	       (eq_attr "alternative" "12,16")
-		 (cond [(and (match_test "TARGET_AVX512F")
-			     (not (match_test "TARGET_PREFER_AVX256")))
-			  (const_string "XI")
-			(match_test "TARGET_AVX")
+		 (cond [(match_test "TARGET_AVX")
 			  (const_string "V2DF")
 			(ior (not (match_test "TARGET_SSE2"))
 			     (match_test "optimize_function_for_size_p (cfun)"))
@@ -3410,12 +3377,7 @@  (define_insn "*movdf_internal"
 
 	       /* movaps is one byte shorter for non-AVX targets.  */
 	       (eq_attr "alternative" "13,17")
-		 (cond [(and (ior (not (match_test "TARGET_PREFER_AVX256"))
-				  (not (match_test "TARGET_AVX512VL")))
-			     (ior (match_operand 0 "ext_sse_reg_operand")
-				  (match_operand 1 "ext_sse_reg_operand")))
-			  (const_string "V8DF")
-			(match_test "TARGET_AVX")
+		 (cond [(match_test "TARGET_AVX")
 			  (const_string "DF")
 			(ior (not (match_test "TARGET_SSE2"))
 			     (match_test "optimize_function_for_size_p (cfun)"))
diff --git a/gcc/testsuite/gcc.target/i386/pr89229-6a.c b/gcc/testsuite/gcc.target/i386/pr89229-6a.c
new file mode 100644
index 00000000000..5bc10d25619
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr89229-6a.c
@@ -0,0 +1,16 @@ 
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -march=skylake-avx512" } */
+
+extern double d;
+
+void
+foo1 (double x)
+{
+  register double xmm16 __asm ("xmm16") = x;
+  asm volatile ("" : "+v" (xmm16));
+  register double xmm17 __asm ("xmm17") = xmm16;
+  asm volatile ("" : "+v" (xmm17));
+  d = xmm17;
+}
+
+/* { dg-final { scan-assembler-not "vmovapd" } } */
diff --git a/gcc/testsuite/gcc.target/i386/pr89229-6b.c b/gcc/testsuite/gcc.target/i386/pr89229-6b.c
new file mode 100644
index 00000000000..b248a3726f4
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr89229-6b.c
@@ -0,0 +1,7 @@ 
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -march=skylake-avx512 -mno-avx512vl" } */
+
+#include "pr89229-6a.c"
+
+/* { dg-final { scan-assembler-not "%zmm\[0-9\]+" } } */
+/* { dg-final { scan-assembler-not "vmovapd" } } */
diff --git a/gcc/testsuite/gcc.target/i386/pr89229-6c.c b/gcc/testsuite/gcc.target/i386/pr89229-6c.c
new file mode 100644
index 00000000000..7a4d254670c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr89229-6c.c
@@ -0,0 +1,6 @@ 
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-O2 -march=skylake-avx512 -mprefer-vector-width=512" } */
+
+#include "pr89229-6a.c"
+
+/* { dg-final { scan-assembler-not "%zmm\[0-9\]+" } } */