https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90497
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Looks good on i686-linux, results in FAIL: gcc.target/i386/pr90497-2.c (test for excess errors) Excess errors: /home/jakub/src/gcc/gcc/testsuite/gcc.target/i386/pr90497-2.c:11:10: warning: implicit declaration of function '__builtin_ia32_pavgusb'; did you mean '__builtin_ia32_paddusb'? [-Wimplicit-function-declaration] /home/jakub/src/gcc/gcc/testsuite/gcc.target/i386/pr90497-2.c:11:10: error: incompatible types when returning type 'int' but '__v8qi' {aka '__vector(8) char'} was expected on x86_64-linux, so that test needs some work.