The movdqu and movapd instructions are SSE2 instructions. Clang interprets the __attribute__((target("sse"))) as allowing SSE only instructions. Using SSE2 instructions cause an error. Signed-off-by: Bill Wendling <morbo@xxxxxxxxxx> --- x86/emulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/x86/emulator.c b/x86/emulator.c index 8fe03b8..2990550 100644 --- a/x86/emulator.c +++ b/x86/emulator.c @@ -658,7 +658,7 @@ static bool sseeq(sse_union *v1, sse_union *v2) return ok; } -static __attribute__((target("sse"))) void test_sse(sse_union *mem) +static __attribute__((target("sse2"))) void test_sse(sse_union *mem) { sse_union v; -- 2.25.0.265.gbab2e86ba0-goog