Commit fc6e1de9 authored by Dr. David Alan Gilbert's avatar Dr. David Alan Gilbert Committed by Paolo Bonzini
Browse files

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: default avatarDr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1465557378-24105-2-git-send-email-dgilbert@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent ac99c624

configure

+1 −1
Original line number Diff line number Diff line
@@ -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