# RUN: llc -run-pass postrapseudos -mtriple=x86_64-unknown-unknown -mattr=+3dnow -o /dev/null %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, _, -8, _, killed %xmm0 %mm0 = PSWAPDrm %rsp, 1, _, -8, _ ; CHECK: %rax = MMX_MOVD64from64rr %mm0 ; CHECK-NEXT: %mm0 = MMX_MOVD64to64rr %rax %rax = COPY %mm0 %mm0 = COPY %rax MMX_MOVQ64mr %rsp, 1, _, -16, _, killed %mm0 %xmm0 = MOVQI2PQIrm %rsp, 1, _, -16, _ %xmm0 = PSHUFDri killed %xmm0, -44 RETQ %xmm0 ...