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; 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
}
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