The test expects transformations that depend on -Ofast on x86*, but
that option is only passed when the avx_runtime is available.
Split -Ofast out of the avx conditional, so that it is passed on the
same targets that expect the transformation.
for gcc/testsuite/ChangeLog
* gcc.dg/vect/vect-ifcvt-18.c: Split -Ofast out of
avx_runtime.
/* { dg-require-effective-target vect_condition } */
/* { dg-require-effective-target vect_float } */
-/* { dg-additional-options "-Ofast -mavx" { target avx_runtime } } */
+/* { dg-additional-options "-Ofast" { target i?86-*-* x86_64-*-* } } */
+/* { dg-additional-options "-mavx" { target avx_runtime } } */
int A0[4] = {36,39,42,45};