From f5754d0e8e2863075c776a0aea87ada484cd8b5c Mon Sep 17 00:00:00 2001 From: Uros Bizjak Date: Fri, 22 Jul 2011 19:55:30 +0200 Subject: [PATCH] target-supports.exp (check_avx_os_support_available): New. * lib/target-supports.exp (check_avx_os_support_available): New. (check_effective_target_avx_runtime): Use it. From-SVN: r176645 --- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/lib/target-supports.exp | 30 ++++++++++++++++++++++++--- 2 files changed, 32 insertions(+), 3 deletions(-) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a009368ca9e5..228a5d82727b 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-07-22 Uros Bizjak + + * lib/target-supports.exp (check_avx_os_support_available): New. + (check_effective_target_avx_runtime): Use it. + 2011-07-19 Jakub Jelinek Backport from mainline diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp index d20802ca64ea..f628af177e2c 100644 --- a/gcc/testsuite/lib/target-supports.exp +++ b/gcc/testsuite/lib/target-supports.exp @@ -870,8 +870,8 @@ proc check_sse_os_support_available { } { check_runtime_nocache sse_os_support_available { int main () { - __asm__ volatile ("movss %xmm2,%xmm1"); - return 0; + asm volatile ("movss %xmm2,%xmm1"); + return 0; } } "-msse" } else { @@ -880,6 +880,29 @@ 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. @@ -974,7 +997,8 @@ 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 -- 2.47.2