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