[18/18] Allow -mno-evex512 usage
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Commit Message
From: Haochen Jiang <haochen.jiang@intel.com>
gcc/ChangeLog:
* config/i386/i386.opt: Allow -mno-evex512.
gcc/testsuite/ChangeLog:
* gcc.target/i386/noevex512-1.c: New test.
* gcc.target/i386/noevex512-2.c: Ditto.
* gcc.target/i386/noevex512-3.c: Ditto.
---
gcc/config/i386/i386.opt | 2 +-
gcc/testsuite/gcc.target/i386/noevex512-1.c | 13 +++++++++++++
gcc/testsuite/gcc.target/i386/noevex512-2.c | 13 +++++++++++++
gcc/testsuite/gcc.target/i386/noevex512-3.c | 13 +++++++++++++
4 files changed, 40 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gcc.target/i386/noevex512-1.c
create mode 100644 gcc/testsuite/gcc.target/i386/noevex512-2.c
create mode 100644 gcc/testsuite/gcc.target/i386/noevex512-3.c
@@ -1312,5 +1312,5 @@ Target Alias(mtune-ctrl=, use_scatter, ^use_scatter)
Enable vectorization for scatter instruction.
mevex512
-Target RejectNegative Mask(ISA2_EVEX512) Var(ix86_isa_flags2) Save
+Target Mask(ISA2_EVEX512) Var(ix86_isa_flags2) Save
Support 512 bit vector built-in functions and code generation.
new file mode 100644
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-O0 -march=x86-64 -mavx512f -mno-evex512 -Wno-psabi" } */
+/* { dg-final { scan-assembler-not ".%zmm" } } */
+
+typedef double __m512d __attribute__ ((__vector_size__ (64), __may_alias__));
+
+__m512d
+foo ()
+{
+ __m512d a, b;
+ a = a + b;
+ return a;
+}
new file mode 100644
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=x86-64 -mavx512bw -mno-evex512" } */
+
+#include <immintrin.h>
+
+long long
+foo (long long c)
+{
+ register long long a __asm ("k7") = c;
+ long long b = foo (a);
+ asm volatile ("" : "+k" (b)); /* { dg-error "inconsistent operand constraints in an 'asm'" } */
+ return b;
+}
new file mode 100644
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-march=x86-64 -Wno-psabi -mavx512f" } */
+/* { dg-final { scan-assembler-not ".%zmm" } } */
+
+typedef double __m512d __attribute__ ((__vector_size__ (64), __may_alias__));
+
+__attribute__ ((target ("no-evex512"))) __m512d
+foo ()
+{
+ __m512d a, b;
+ a = a + b;
+ return a;
+}