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 12 define void @t1(x86_mmx %v1) nounwind { 13 store x86_mmx %v1, x86_mmx* @u1, align 8 14 ret void 15 16 ; X86-32-LABEL: t1: 17 ; X86-32: movq %mm0 18 19 ; X86-64-LABEL: t1: 20 ; X86-64: movdq2q %xmm0 21 ; X86-64: movq %mm0 22 } 23 24 @u2 = external global x86_mmx 25 26 define void @t2(<1 x i64> %v1) nounwind { 27 %tmp = bitcast <1 x i64> %v1 to x86_mmx 28 store x86_mmx %tmp, x86_mmx* @u2, align 8 29 ret void 30 31 ; X86-32-LABEL: t2: 32 ; X86-32: movl 4(%esp) 33 ; X86-32: movl 8(%esp) 34 35 ; X86-64-LABEL: t2: 36 ; X86-64: movq %rdi 37 } 38 39
