| ; RUN: llc < %s -mtriple=i386-apple-darwin -mattr=+mmx | FileCheck %s -check-prefix=X86-32 |
| ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+mmx,+sse2 | FileCheck %s -check-prefix=X86-64 |
| ; |
| ; On Darwin x86-32, v8i8, v4i16, v2i32 values are passed in MM[0-2]. |
| ; On Darwin x86-32, v1i64 values are passed in memory. In this example, they |
| ; are never moved into an MM register at all. |
| ; On Darwin x86-64, v8i8, v4i16, v2i32 values are passed in XMM[0-7]. |
| ; On Darwin x86-64, v1i64 values are passed in 64-bit GPRs. |
| |
| @u1 = external global x86_mmx |
| |
| define void @t1(x86_mmx %v1) nounwind { |
| store x86_mmx %v1, x86_mmx* @u1, align 8 |
| ret void |
| |
| ; X86-32-LABEL: t1: |
| ; X86-32: movq %mm0 |
| |
| ; X86-64-LABEL: t1: |
| ; X86-64: movdq2q %xmm0 |
| ; X86-64: movq %mm0 |
| } |
| |
| @u2 = external global x86_mmx |
| |
| define void @t2(<1 x i64> %v1) nounwind { |
| %tmp = bitcast <1 x i64> %v1 to x86_mmx |
| store x86_mmx %tmp, x86_mmx* @u2, align 8 |
| ret void |
| |
| ; X86-32-LABEL: t2: |
| ; X86-32: movl 4(%esp) |
| ; X86-32: movl 8(%esp) |
| |
| ; X86-64-LABEL: t2: |
| ; X86-64: movq %rdi |
| } |
| |