37 lines
1.1 KiB
Plaintext
37 lines
1.1 KiB
Plaintext
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# RUN: llc -run-pass postrapseudos -mtriple=x86_64-unknown-unknown -mattr=+3dnow -o - %s | FileCheck %s
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# This test verifies that the ExpandPostRA pass expands the GR64 <-> VR64
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# copies into appropriate MMX_MOV instructions.
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--- |
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define <2 x i32> @test_pswapdsi(<2 x i32> %a) nounwind readnone {
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entry:
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%0 = bitcast <2 x i32> %a to x86_mmx
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%1 = tail call x86_mmx @llvm.x86.3dnowa.pswapd(x86_mmx %0)
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%2 = bitcast x86_mmx %1 to <2 x i32>
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ret <2 x i32> %2
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}
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declare x86_mmx @llvm.x86.3dnowa.pswapd(x86_mmx) nounwind readnone
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...
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---
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name: test_pswapdsi
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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liveins: $xmm0
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$xmm0 = PSHUFDri killed $xmm0, -24
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MOVPQI2QImr $rsp, 1, $noreg, -8, $noreg, killed $xmm0
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$mm0 = PSWAPDrm $rsp, 1, $noreg, -8, $noreg
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; CHECK: $rax = MMX_MOVD64from64rr $mm0
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; CHECK-NEXT: $mm0 = MMX_MOVD64to64rr $rax
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$rax = COPY $mm0
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$mm0 = COPY $rax
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MMX_MOVQ64mr $rsp, 1, $noreg, -16, $noreg, killed $mm0
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$xmm0 = MOVQI2PQIrm $rsp, 1, $noreg, -16, $noreg
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$xmm0 = PSHUFDri killed $xmm0, -44
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RETQ $xmm0
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...
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