From: liuhongt <hongtao.liu@intel.com>
Date: Wed, 3 Jul 2024 06:47:33 +0000 (+0800)
Subject: Move runtime check into a separate function and guard it with target ("no-avx")
X-Git-Tag: basepoints/gcc-16~7747
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=239ad907b1fc08874042f8bea5f61eaf3ba2877d;p=thirdparty%2Fgcc.git

Move runtime check into a separate function and guard it with target ("no-avx")

The patch can avoid SIGILL on non-AVX512 machine due to kmovd is
generated in dynamic check.

gcc/testsuite/ChangeLog:

	PR target/115748
	* gcc.target/i386/avx512-check.h: Move runtime check into a
	separate function and guard it with target ("no-avx").
---

diff --git a/gcc/testsuite/gcc.target/i386/avx512-check.h b/gcc/testsuite/gcc.target/i386/avx512-check.h
index 0ad9064f637..71858a33dac 100644
--- a/gcc/testsuite/gcc.target/i386/avx512-check.h
+++ b/gcc/testsuite/gcc.target/i386/avx512-check.h
@@ -34,8 +34,9 @@ check_osxsave (void)
   return (ecx & bit_OSXSAVE) != 0;
 }
 
+__attribute__((noipa,target("no-avx")))
 int
-main ()
+avx512_runtime_support_p ()
 {
   unsigned int eax, ebx, ecx, edx;
 
@@ -100,6 +101,17 @@ main ()
       && (edx & bit_AVX512VP2INTERSECT)
 #endif
       && avx512f_os_support ())
+    {
+      return 1;
+    }
+
+  return 0;
+}
+
+int
+main ()
+{
+  if (avx512_runtime_support_p ())
     {
       DO_TEST ();
 #ifdef DEBUG