| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -O0 -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX9 %s |
| |
| # The G_ZEXT and G_SHL will be scalarized, introducing a |
| # G_UNMERGE_VALUES of G_BUILD_VECTOR. The artifact combiner should |
| # eliminate the pair. |
| --- |
| name: revisit_build_vector_unmerge_user |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| liveins: $vgpr0_vgpr1 |
| |
| ; GFX9-LABEL: name: revisit_build_vector_unmerge_user |
| ; GFX9: liveins: $vgpr0_vgpr1 |
| ; GFX9: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1 |
| ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 2 |
| ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>) |
| ; GFX9: [[ZEXT:%[0-9]+]]:_(s64) = G_ZEXT [[UV]](s32) |
| ; GFX9: [[ZEXT1:%[0-9]+]]:_(s64) = G_ZEXT [[UV1]](s32) |
| ; GFX9: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[ZEXT]], [[C]](s32) |
| ; GFX9: [[SHL1:%[0-9]+]]:_(s64) = G_SHL [[ZEXT1]], [[C]](s32) |
| ; GFX9: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[SHL]](s64), [[SHL1]](s64) |
| ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BUILD_VECTOR]](<2 x s64>) |
| %0:_(<2 x s32>) = COPY $vgpr0_vgpr1 |
| %1:_(s32) = G_CONSTANT i32 2 |
| %2:_(<2 x s32>) = G_BUILD_VECTOR %1, %1 |
| %3:_(<2 x s64>) = G_ZEXT %0 |
| %4:_(<2 x s64>) = G_SHL %3, %2 |
| $vgpr0_vgpr1_vgpr2_vgpr3 = COPY %4 |
| ... |