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; RUN: llc < %s -march=x86 -mattr=+sse2,+mmx | FileCheck %s
; originally from PR2687, but things don't work that way any more.
; there are no MMX instructions here; we use XMM.
define <2 x double> @a(<2 x i32> %x) nounwind {
entry:
; CHECK-LABEL: a
; CHECK-NOT: unpcklpd
%y = sitofp <2 x i32> %x to <2 x double>
ret <2 x double> %y
}
define <2 x i32> @b(<2 x double> %x) nounwind {
entry:
; CHECK-LABEL: b
; CHECK-NOT: unpckhpd
%y = fptosi <2 x double> %x to <2 x i32>
ret <2 x i32> %y
}
; This is how to get MMX instructions.
define <2 x double> @a2(x86_mmx %x) nounwind {
entry:
; CHECK-LABEL: a2
; CHECK: cvtpi2pd
; CHECK-NOT: cvtpi2pd
%y = tail call <2 x double> @llvm.x86.sse.cvtpi2pd(x86_mmx %x)
ret <2 x double> %y
}
define x86_mmx @b2(<2 x double> %x) nounwind {
entry:
; CHECK-LABEL: b2
; CHECK: cvttpd2pi
; CHECK-NOT: cvttpd2pi
%y = tail call x86_mmx @llvm.x86.sse.cvttpd2pi (<2 x double> %x)
ret x86_mmx %y
}
declare <2 x double> @llvm.x86.sse.cvtpi2pd(x86_mmx)
declare x86_mmx @llvm.x86.sse.cvttpd2pi(<2 x double>)
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