1; RUN: llc < %s -mtriple=i386-apple-darwin -mattr=+mmx | grep mm0 | count 1 2; RUN: llc < %s -mtriple=i386-apple-darwin -mattr=+mmx | grep esp | count 2 3; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+mmx,+sse2 | grep xmm0 4; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+mmx,+sse2 | grep rdi 5; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+mmx,+sse2 | not grep movups 6; 7; On Darwin x86-32, v8i8, v4i16, v2i32 values are passed in MM[0-2]. 8; On Darwin x86-32, v1i64 values are passed in memory. In this example, they 9; are never moved into an MM register at all. 10; On Darwin x86-64, v8i8, v4i16, v2i32 values are passed in XMM[0-7]. 11; On Darwin x86-64, v1i64 values are passed in 64-bit GPRs. 12 13@u1 = external global x86_mmx 14 15define void @t1(x86_mmx %v1) nounwind { 16 store x86_mmx %v1, x86_mmx* @u1, align 8 17 ret void 18} 19 20@u2 = external global x86_mmx 21 22define void @t2(<1 x i64> %v1) nounwind { 23 %tmp = bitcast <1 x i64> %v1 to x86_mmx 24 store x86_mmx %tmp, x86_mmx* @u2, align 8 25 ret void 26} 27 28