[gcc r11-7573] i386: Properly set ix86_isa_flags

[gcc r11-7573] i386: Properly set ix86_isa_flags

[Martin Liska]

https://gcc.gnu.org/g:eb5e1998e29873ba77deff357dc27e8cef53dff0

commit r11-7573-geb5e1998e29873ba77deff357dc27e8cef53dff0
Author: Martin Liska <mliska@suse.cz>
Date:   Mon Mar 8 12:56:06 2021 +0100

    i386: Properly set ix86_isa_flags
    
    gcc/ChangeLog:
    
            PR target/99464
            * config/i386/i386-options.c (ix86_option_override_internal):
            Set isa_flags for OPTS argument and not for the global
            global_options.
    
    gcc/testsuite/ChangeLog:
    
            PR target/99464
            * gcc.target/i386/pr99464.c: New test.

Diff:
---
 gcc/config/i386/i386-options.c          |  8 ++++----
 gcc/testsuite/gcc.target/i386/pr99464.c | 15 +++++++++++++++
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/gcc/config/i386/i386-options.c b/gcc/config/i386/i386-options.c
index 410fa0cc436..e93935f6f2c 100644
--- a/gcc/config/i386/i386-options.c
+++ b/gcc/config/i386/i386-options.c
@@ -2159,11 +2159,11 @@ ix86_option_override_internal (bool main_args_p,
 	    && !(opts->x_ix86_isa_flags2_explicit & OPTION_MASK_ISA2_MOVBE))
 	  opts->x_ix86_isa_flags2 |= OPTION_MASK_ISA2_MOVBE;
 	if (((processor_alias_table[i].flags & PTA_AES) != 0)
-	    && !(ix86_isa_flags_explicit & OPTION_MASK_ISA_AES))
-	  ix86_isa_flags |= OPTION_MASK_ISA_AES;
+	    && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AES))
+	  opts->x_ix86_isa_flags |= OPTION_MASK_ISA_AES;
 	if (((processor_alias_table[i].flags & PTA_SHA) != 0)
-	    && !(ix86_isa_flags_explicit & OPTION_MASK_ISA_SHA))
-	  ix86_isa_flags |= OPTION_MASK_ISA_SHA;
+	    && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_SHA))
+	  opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SHA;
 	if (((processor_alias_table[i].flags & PTA_PCLMUL) != 0)
 	    && !(opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_PCLMUL))
 	  opts->x_ix86_isa_flags |= OPTION_MASK_ISA_PCLMUL;
diff --git a/gcc/testsuite/gcc.target/i386/pr99464.c b/gcc/testsuite/gcc.target/i386/pr99464.c
new file mode 100644
index 00000000000..98dd938973e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr99464.c
@@ -0,0 +1,15 @@
+/* PR target/99464 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+#pragma GCC target("arch=cannonlake")
+
+#include <immintrin.h>
+
+volatile __m128i x;
+
+void extern
+sha_test (void)
+{
+  x = _mm_sha1msg1_epu32 (x, x);
+}