36 lines
1.0 KiB
LLVM
36 lines
1.0 KiB
LLVM
; RUN: llc < %s -march=x86 -mattr=+sse2 -mattr=+mmx | not grep unpcklpd
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; RUN: llc < %s -march=x86 -mattr=+sse2 -mattr=+mmx | not grep unpckhpd
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; RUN: llc < %s -march=x86 -mattr=+sse2 | grep cvttpd2pi | count 1
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; RUN: llc < %s -march=x86 -mattr=+sse2 | grep cvtpi2pd | count 1
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; originally from PR2687, but things don't work that way any more.
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; there are no MMX instructions here; we use XMM.
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define <2 x double> @a(<2 x i32> %x) nounwind {
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entry:
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%y = sitofp <2 x i32> %x to <2 x double>
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ret <2 x double> %y
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}
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define <2 x i32> @b(<2 x double> %x) nounwind {
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entry:
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%y = fptosi <2 x double> %x to <2 x i32>
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ret <2 x i32> %y
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}
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; This is how to get MMX instructions.
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define <2 x double> @a2(x86_mmx %x) nounwind {
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entry:
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%y = tail call <2 x double> @llvm.x86.sse.cvtpi2pd(x86_mmx %x)
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ret <2 x double> %y
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}
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define x86_mmx @b2(<2 x double> %x) nounwind {
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entry:
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%y = tail call x86_mmx @llvm.x86.sse.cvttpd2pi (<2 x double> %x)
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ret x86_mmx %y
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}
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declare <2 x double> @llvm.x86.sse.cvtpi2pd(x86_mmx)
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declare x86_mmx @llvm.x86.sse.cvttpd2pi(<2 x double>)
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