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Make avx2 configure test work with -O2 

When configured with --extra-cflags=-O2 gcc optimised out the test
and the readelf failed the check leaving avx2 disabled.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1465557378-24105-2-git-send-email-dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2016-06-10 12:16:17 +01:00 committed by Paolo Bonzini
parent ac99c624c6
commit fc6e1de9d8
1 changed files with 1 additions and 1 deletions
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2
configure vendored
View File

@ -1781,7 +1781,7 @@ fi
cat > $TMPC << EOF
static void bar(void) {}
static void *bar_ifunc(void) {return (void*) bar;}
static void foo(void) __attribute__((ifunc("bar_ifunc")));
void foo(void) __attribute__((ifunc("bar_ifunc")));
int main(void) { foo(); return 0; }
EOF
if compile_prog "-mavx2" "" ; then