/
combine-zext-trunc.mir
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combine-zext-trunc.mir
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx1010 -run-pass=amdgpu-prelegalizer-combiner -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
---
name: zext_trunc_s32_s16_s32
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: zext_trunc_s32_s16_s32
; GCN: liveins: $vgpr0
; GCN: %var:_(s32) = COPY $vgpr0
; GCN: %c3FFF:_(s32) = G_CONSTANT i32 16383
; GCN: %low_bits:_(s32) = G_AND %var, %c3FFF
; GCN: $vgpr0 = COPY %low_bits(s32)
%var:_(s32) = COPY $vgpr0
%c3FFF:_(s32) = G_CONSTANT i32 16383
%low_bits:_(s32) = G_AND %var, %c3FFF
%trunc:_(s16) = G_TRUNC %low_bits(s32)
%zext:_(s32) = G_ZEXT %trunc(s16)
$vgpr0 = COPY %zext(s32)
...
---
name: zext_trunc_s32_s16_s32_unknown_high_bits
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: zext_trunc_s32_s16_s32_unknown_high_bits
; GCN: liveins: $vgpr0
; GCN: %var:_(s32) = COPY $vgpr0
; GCN: %cFFFFF:_(s32) = G_CONSTANT i32 1048575
; GCN: %low_bits:_(s32) = G_AND %var, %cFFFFF
; GCN: %trunc:_(s16) = G_TRUNC %low_bits(s32)
; GCN: %zext:_(s32) = G_ZEXT %trunc(s16)
; GCN: $vgpr0 = COPY %zext(s32)
%var:_(s32) = COPY $vgpr0
%cFFFFF:_(s32) = G_CONSTANT i32 1048575
%low_bits:_(s32) = G_AND %var, %cFFFFF
%trunc:_(s16) = G_TRUNC %low_bits(s32)
%zext:_(s32) = G_ZEXT %trunc(s16)
$vgpr0 = COPY %zext(s32)
...
---
name: zext_trunc_s64_s16_s32
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0_vgpr1
; GCN-LABEL: name: zext_trunc_s64_s16_s32
; GCN: liveins: $vgpr0_vgpr1
; GCN: %var:_(s64) = COPY $vgpr0_vgpr1
; GCN: %c3FFF:_(s64) = G_CONSTANT i64 16383
; GCN: %low_bits:_(s64) = G_AND %var, %c3FFF
; GCN: %trunc:_(s16) = G_TRUNC %low_bits(s64)
; GCN: %zext:_(s32) = G_ZEXT %trunc(s16)
; GCN: $vgpr0 = COPY %zext(s32)
%var:_(s64) = COPY $vgpr0_vgpr1
%c3FFF:_(s64) = G_CONSTANT i64 16383
%low_bits:_(s64) = G_AND %var, %c3FFF
%trunc:_(s16) = G_TRUNC %low_bits(s64)
%zext:_(s32) = G_ZEXT %trunc(s16)
$vgpr0 = COPY %zext(s32)
...
---
name: zext_trunc_s32_s16_s64
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: zext_trunc_s32_s16_s64
; GCN: liveins: $vgpr0
; GCN: %var:_(s32) = COPY $vgpr0
; GCN: %c3FFF:_(s32) = G_CONSTANT i32 16383
; GCN: %low_bits:_(s32) = G_AND %var, %c3FFF
; GCN: %trunc:_(s16) = G_TRUNC %low_bits(s32)
; GCN: %zext:_(s64) = G_ZEXT %trunc(s16)
; GCN: $vgpr0_vgpr1 = COPY %zext(s64)
%var:_(s32) = COPY $vgpr0
%c3FFF:_(s32) = G_CONSTANT i32 16383
%low_bits:_(s32) = G_AND %var, %c3FFF
%trunc:_(s16) = G_TRUNC %low_bits(s32)
%zext:_(s64) = G_ZEXT %trunc(s16)
$vgpr0_vgpr1 = COPY %zext(s64)
...
---
name: zext_trunc_v2s32_v2s16_v2s32
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0_vgpr1
; GCN-LABEL: name: zext_trunc_v2s32_v2s16_v2s32
; GCN: liveins: $vgpr0_vgpr1
; GCN: %var:_(<2 x s32>) = COPY $vgpr0_vgpr1
; GCN: %c3FFF:_(s32) = G_CONSTANT i32 16383
; GCN: %c7FFF:_(s32) = G_CONSTANT i32 32767
; GCN: %c:_(<2 x s32>) = G_BUILD_VECTOR %c3FFF(s32), %c7FFF(s32)
; GCN: %low_bits:_(<2 x s32>) = G_AND %var, %c
; GCN: $vgpr0_vgpr1 = COPY %low_bits(<2 x s32>)
%var:_(<2 x s32>) = COPY $vgpr0_vgpr1
%c3FFF:_(s32) = G_CONSTANT i32 16383
%c7FFF:_(s32) = G_CONSTANT i32 32767
%c:_(<2 x s32>) = G_BUILD_VECTOR %c3FFF(s32), %c7FFF(s32)
%low_bits:_(<2 x s32>) = G_AND %var, %c
%trunc:_(<2 x s16>) = G_TRUNC %low_bits(<2 x s32>)
%zext:_(<2 x s32>) = G_ZEXT %trunc(<2 x s16>)
$vgpr0_vgpr1 = COPY %zext(<2 x s32>)
...
---
name: zext_trunc_v2s32_v2s16_v2s32_unknown_high_bits
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0_vgpr1
; GCN-LABEL: name: zext_trunc_v2s32_v2s16_v2s32_unknown_high_bits
; GCN: liveins: $vgpr0_vgpr1
; GCN: %var:_(<2 x s32>) = COPY $vgpr0_vgpr1
; GCN: %cFFFFF:_(s32) = G_CONSTANT i32 1048575
; GCN: %c7FFF:_(s32) = G_CONSTANT i32 32767
; GCN: %c:_(<2 x s32>) = G_BUILD_VECTOR %cFFFFF(s32), %c7FFF(s32)
; GCN: %low_bits:_(<2 x s32>) = G_AND %var, %c
; GCN: %trunc:_(<2 x s16>) = G_TRUNC %low_bits(<2 x s32>)
; GCN: %zext:_(<2 x s32>) = G_ZEXT %trunc(<2 x s16>)
; GCN: $vgpr0_vgpr1 = COPY %zext(<2 x s32>)
%var:_(<2 x s32>) = COPY $vgpr0_vgpr1
%cFFFFF:_(s32) = G_CONSTANT i32 1048575
%c7FFF:_(s32) = G_CONSTANT i32 32767
%c:_(<2 x s32>) = G_BUILD_VECTOR %cFFFFF(s32), %c7FFF(s32)
%low_bits:_(<2 x s32>) = G_AND %var, %c
%trunc:_(<2 x s16>) = G_TRUNC %low_bits(<2 x s32>)
%zext:_(<2 x s32>) = G_ZEXT %trunc(<2 x s16>)
$vgpr0_vgpr1 = COPY %zext(<2 x s32>)
...
---
name: zext_trunc_v2s64_v2s16_v2s32
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0_vgpr1_vgpr2_vgpr3
; GCN-LABEL: name: zext_trunc_v2s64_v2s16_v2s32
; GCN: liveins: $vgpr0_vgpr1_vgpr2_vgpr3
; GCN: %var:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
; GCN: %c3FFF:_(s64) = G_CONSTANT i64 16383
; GCN: %c7FFF:_(s64) = G_CONSTANT i64 32767
; GCN: %c:_(<2 x s64>) = G_BUILD_VECTOR %c3FFF(s64), %c7FFF(s64)
; GCN: %low_bits:_(<2 x s64>) = G_AND %var, %c
; GCN: %trunc:_(<2 x s16>) = G_TRUNC %low_bits(<2 x s64>)
; GCN: %zext:_(<2 x s32>) = G_ZEXT %trunc(<2 x s16>)
; GCN: $vgpr0_vgpr1 = COPY %zext(<2 x s32>)
%var:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
%c3FFF:_(s64) = G_CONSTANT i64 16383
%c7FFF:_(s64) = G_CONSTANT i64 32767
%c:_(<2 x s64>) = G_BUILD_VECTOR %c3FFF(s64), %c7FFF(s64)
%low_bits:_(<2 x s64>) = G_AND %var, %c
%trunc:_(<2 x s16>) = G_TRUNC %low_bits(<2 x s64>)
%zext:_(<2 x s32>) = G_ZEXT %trunc(<2 x s16>)
$vgpr0_vgpr1 = COPY %zext(<2 x s32>)
...
---
name: zext_trunc_v2s32_v2s16_v2s64
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0_vgpr1
; GCN-LABEL: name: zext_trunc_v2s32_v2s16_v2s64
; GCN: liveins: $vgpr0_vgpr1
; GCN: %var:_(<2 x s32>) = COPY $vgpr0_vgpr1
; GCN: %c3FFF:_(s32) = G_CONSTANT i32 16383
; GCN: %c7FFF:_(s32) = G_CONSTANT i32 32767
; GCN: %c:_(<2 x s32>) = G_BUILD_VECTOR %c3FFF(s32), %c7FFF(s32)
; GCN: %low_bits:_(<2 x s32>) = G_AND %var, %c
; GCN: %trunc:_(<2 x s16>) = G_TRUNC %low_bits(<2 x s32>)
; GCN: %zext:_(<2 x s64>) = G_ZEXT %trunc(<2 x s16>)
; GCN: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY %zext(<2 x s64>)
%var:_(<2 x s32>) = COPY $vgpr0_vgpr1
%c3FFF:_(s32) = G_CONSTANT i32 16383
%c7FFF:_(s32) = G_CONSTANT i32 32767
%c:_(<2 x s32>) = G_BUILD_VECTOR %c3FFF(s32), %c7FFF(s32)
%low_bits:_(<2 x s32>) = G_AND %var, %c
%trunc:_(<2 x s16>) = G_TRUNC %low_bits(<2 x s32>)
%zext:_(<2 x s64>) = G_ZEXT %trunc(<2 x s16>)
$vgpr0_vgpr1_vgpr2_vgpr3 = COPY %zext(<2 x s64>)
...