| # 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, _, -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 |
| ... |