Hi, these testcases now fails because they contains an invalid type puning that happens via const VALUE_TYPE *v pointer. Since the check function is noinline, modref is needed to trigger the wrong code. I think it is easiest to fix it by no-strict-aliasing.
Regtested x86_64-linux, OK? * gcc.target/i386/m128-check.h: Add no-strict aliasing to CHECK_EXP macro. diff --git a/gcc/testsuite/gcc.target/i386/m128-check.h b/gcc/testsuite/gcc.target/i386/m128-check.h index 48b23328539..6f414b07be7 100644 --- a/gcc/testsuite/gcc.target/i386/m128-check.h +++ b/gcc/testsuite/gcc.target/i386/m128-check.h @@ -78,6 +78,7 @@ typedef union #define CHECK_EXP(UINON_TYPE, VALUE_TYPE, FMT) \ static int \ +__attribute__((optimize ("no-strict-aliasing"))) \ __attribute__((noinline, unused)) \ check_##UINON_TYPE (UINON_TYPE u, const VALUE_TYPE *v) \ { \