https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79565
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> --- Created attachment 41959 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41959&action=edit A patch I got [hjl@gnu-6 pr79565]$ cat x.i typedef float a __attribute__ ((__vector_size__ (16))); a b, d; int __attribute__ ((__vector_size__ (2 * sizeof (int)))) c; void e () { d = __builtin_ia32_cvtpi2ps (b, c); } [hjl@gnu-6 pr79565]$ make x.s /export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -mno-mmx -S -o x.s x.i x.i: In function ‘e’: x.i:4:17: error: ‘__builtin_ia32_cvtpi2ps’ needs isa option -m32 -msse -mmmx void e () { d = __builtin_ia32_cvtpi2ps (b, c); } ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ make: *** [Makefile:21: x.s] Error 1 [hjl@gnu-6 pr79565]$ cat y.i typedef short v4hi __attribute__ ((__vector_size__ (4 * sizeof (short)))); v4hi a, b, c; void foo (void) { a = __builtin_ia32_psubusw (b, c); } [hjl@gnu-6 pr79565]$ make y.s /export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -mno-mmx -S -o y.s y.i y.i: In function ‘foo’: y.i:6:7: error: ‘__builtin_ia32_psubusw’ needs isa option -m32 -mmmx a = __builtin_ia32_psubusw (b, c); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ make: *** [Makefile:21: y.s] Error 1 [hjl@gnu-6 pr79565]$
