| # 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_SHL will be split into <2 x s16>, introducing a |
| # G_UNMERGE_VALUES of G_CONCAT_VECTORS. The artifact combiner should |
| # eliminate the pair. |
| --- |
| name: revisit_concat_vectors_unmerge_user |
| tracksRegLiveness: true |
| body: | |
| bb.0: |
| liveins: $vgpr0_vgpr1 |
| |
| ; GFX9-LABEL: name: revisit_concat_vectors_unmerge_user |
| ; GFX9: liveins: $vgpr0_vgpr1 |
| ; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0 |
| ; GFX9: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 8 |
| ; GFX9: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], [[C]](s32) |
| ; GFX9: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 16 |
| ; GFX9: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], [[C1]](s32) |
| ; GFX9: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 24 |
| ; GFX9: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], [[C2]](s32) |
| ; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY [[COPY]](s32) |
| ; GFX9: [[COPY2:%[0-9]+]]:_(s32) = COPY [[LSHR]](s32) |
| ; GFX9: [[BUILD_VECTOR_TRUNC:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY1]](s32), [[COPY2]](s32) |
| ; GFX9: [[COPY3:%[0-9]+]]:_(s32) = COPY [[LSHR1]](s32) |
| ; GFX9: [[COPY4:%[0-9]+]]:_(s32) = COPY [[LSHR2]](s32) |
| ; GFX9: [[BUILD_VECTOR_TRUNC1:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY3]](s32), [[COPY4]](s32) |
| ; GFX9: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 2 |
| ; GFX9: [[COPY5:%[0-9]+]]:_(s32) = COPY [[C3]](s32) |
| ; GFX9: [[COPY6:%[0-9]+]]:_(s32) = COPY [[C3]](s32) |
| ; GFX9: [[BUILD_VECTOR_TRUNC2:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY5]](s32), [[COPY6]](s32) |
| ; GFX9: [[COPY7:%[0-9]+]]:_(s32) = COPY [[C3]](s32) |
| ; GFX9: [[BUILD_VECTOR_TRUNC3:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR_TRUNC [[COPY7]](s32), [[C3]](s32) |
| ; GFX9: [[SHL:%[0-9]+]]:_(<2 x s16>) = G_SHL [[BUILD_VECTOR_TRUNC]], [[BUILD_VECTOR_TRUNC2]](<2 x s16>) |
| ; GFX9: [[SHL1:%[0-9]+]]:_(<2 x s16>) = G_SHL [[BUILD_VECTOR_TRUNC1]], [[BUILD_VECTOR_TRUNC3]](<2 x s16>) |
| ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[SHL]](<2 x s16>), [[SHL1]](<2 x s16>) |
| ; GFX9: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<4 x s16>) |
| %0:_(s32) = COPY $vgpr0 |
| %1:_(<4 x s8>) = G_BITCAST %0 |
| %2:_(s16) = G_CONSTANT i16 2 |
| %3:_(<4 x s16>) = G_BUILD_VECTOR %2, %2, %2, %2 |
| %4:_(<4 x s16>) = G_ANYEXT %1 |
| %5:_(<4 x s16>) = G_SHL %4, %3 |
| $vgpr0_vgpr1 = COPY %5 |
| ... |