1; RUN: llc < %s -mtriple=i386-apple-darwin -mattr=+mmx | FileCheck %s --check-prefix=X86-32 2; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+mmx,+sse2 | FileCheck %s --check-prefix=X86-64 3; 4; On Darwin x86-32, v8i8, v4i16, v2i32 values are passed in MM[0-2]. 5; On Darwin x86-32, v1i64 values are passed in memory. In this example, they 6; are never moved into an MM register at all. 7; On Darwin x86-64, v8i8, v4i16, v2i32 values are passed in XMM[0-7]. 8; On Darwin x86-64, v1i64 values are passed in 64-bit GPRs. 9 10@u1 = external global x86_mmx 11 12define void @t1(x86_mmx %v1) nounwind { 13; X86-32-LABEL: t1: 14; X86-32: ## BB#0: 15; X86-32-NEXT: movl L_u1$non_lazy_ptr, %eax 16; X86-32-NEXT: movq %mm0, (%eax) 17; X86-32-NEXT: retl 18; 19; X86-64-LABEL: t1: 20; X86-64: ## BB#0: 21; X86-64-NEXT: movdq2q %xmm0, %mm0 22; X86-64-NEXT: movq _u1@{{.*}}(%rip), %rax 23; X86-64-NEXT: movq %mm0, (%rax) 24; X86-64-NEXT: retq 25 store x86_mmx %v1, x86_mmx* @u1, align 8 26 ret void 27} 28 29@u2 = external global x86_mmx 30 31define void @t2(<1 x i64> %v1) nounwind { 32; X86-32-LABEL: t2: 33; X86-32: ## BB#0: 34; X86-32-NEXT: movl {{[0-9]+}}(%esp), %eax 35; X86-32-NEXT: movl {{[0-9]+}}(%esp), %ecx 36; X86-32-NEXT: movl L_u2$non_lazy_ptr, %edx 37; X86-32-NEXT: movl %ecx, 4(%edx) 38; X86-32-NEXT: movl %eax, (%edx) 39; X86-32-NEXT: retl 40; 41; X86-64-LABEL: t2: 42; X86-64: ## BB#0: 43; X86-64-NEXT: movq _u2@{{.*}}(%rip), %rax 44; X86-64-NEXT: movq %rdi, (%rax) 45; X86-64-NEXT: retq 46 %tmp = bitcast <1 x i64> %v1 to x86_mmx 47 store x86_mmx %tmp, x86_mmx* @u2, align 8 48 ret void 49} 50