* lib/target-supports.exp (check_avx_os_support_available): New.

[pf3gnuchains/gcc-fork.git] / gcc / testsuite / lib / target-supports.exp

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 2148f80..bec4d6f 100644 (file)
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -1070,8 +1070,8 @@ proc check_sse_os_support_available { } {
            check_runtime_nocache sse_os_support_available {
                int main ()
                {
-                   __asm__ volatile ("movaps %xmm0,%xmm0");
-                   return 0;
+                 asm volatile ("movaps %xmm0,%xmm0");
+                 return 0;
                }
            } "-msse"
        } else {
@@ -1080,6 +1080,29 @@ proc check_sse_os_support_available { } {
     }]
 }
 
+# Return 1 if the target OS supports running AVX executables, 0
+# otherwise.  Cache the result.
+
+proc check_avx_os_support_available { } {
+    return [check_cached_effective_target avx_os_support_available {
+       # If this is not the right target then we can skip the test.
+       if { !([istarget x86_64-*-*] || [istarget i?86-*-*]) } {
+           expr 0
+       } else {
+           # Check that OS has AVX and SSE saving enabled.
+           check_runtime_nocache avx_os_support_available {
+               int main ()
+               {
+                 unsigned int eax, edx;
+
+                 asm ("xgetbv" : "=a" (eax), "=d" (edx) : "c" (0));
+                 return (eax & 6) != 6;
+               }
+           } ""
+       }
+    }]
+}
+
 # Return 1 if the target supports executing SSE instructions, 0
 # otherwise.  Cache the result.
 
@@ -1176,7 +1199,8 @@ proc check_effective_target_sse2_runtime { } {
 
 proc check_effective_target_avx_runtime { } {
     if { [check_effective_target_avx]
-        && [check_avx_hw_available] } {
+        && [check_avx_hw_available]
+        && [check_avx_os_support_available] } {
        return 1
     }
     return 0