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bolt/deps/llvm-18.1.8/llvm/test/CodeGen/AMDGPU/GlobalISel/combine-trunc-shift.mir
Sam Vervaeck 174b6f4d4e
Embed LLVM 18.1.8
2025-02-14 19:21:04 +01:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn -run-pass=amdgpu-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s
---
name: trunc_s32_shl_s64_5
legalized: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0_vgpr1
; CHECK-LABEL: name: trunc_s32_shl_s64_5
; CHECK: liveins: $vgpr0_vgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s32) = G_TRUNC [[COPY]](s64)
; CHECK-NEXT: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[TRUNC]], [[C]](s32)
; CHECK-NEXT: $vgpr0 = COPY [[SHL]](s32)
%0:_(s64) = COPY $vgpr0_vgpr1
%1:_(s32) = G_CONSTANT i32 1
%2:_(s64) = G_SHL %0:_, %1
%3:_(s32) = G_TRUNC %2
$vgpr0 = COPY %3
...
---
name: trunc_s16_shl_s32_5
legalized: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; CHECK-LABEL: name: trunc_s16_shl_s32_5
; CHECK: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; CHECK-NEXT: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[COPY]], [[C]](s32)
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[SHL]](s32)
; CHECK-NEXT: S_ENDPGM 0, implicit [[TRUNC]](s16)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = G_CONSTANT i32 1
%2:_(s32) = G_SHL %0:_, %1
%3:_(s16) = G_TRUNC %2
S_ENDPGM 0, implicit %3
...
---
name: trunc_s16_shl_s64_5
legalized: true
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0_vgpr1
; CHECK-LABEL: name: trunc_s16_shl_s64_5
; CHECK: liveins: $vgpr0_vgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; CHECK-NEXT: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[COPY]], [[C]](s32)
; CHECK-NEXT: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[SHL]](s64)
; CHECK-NEXT: S_ENDPGM 0, implicit [[TRUNC]](s16)
%0:_(s64) = COPY $vgpr0_vgpr1
%1:_(s32) = G_CONSTANT i32 1
%2:_(s64) = G_SHL %0:_, %1
%3:_(s16) = G_TRUNC %2
S_ENDPGM 0, implicit %3
...
---
name: s16_trunc_s64_lshr_16
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; CHECK-LABEL: name: s16_trunc_s64_lshr_16
; CHECK: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; CHECK-NEXT: %amt:_(s32) = G_CONSTANT i32 16
; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], %amt(s32)
; CHECK-NEXT: %trunc:_(s16) = G_TRUNC [[LSHR]](s32)
; CHECK-NEXT: %foo:_(s16) = G_CONSTANT i16 55
; CHECK-NEXT: %keep:_(s32) = G_MERGE_VALUES %trunc(s16), %foo(s16)
; CHECK-NEXT: $vgpr0 = COPY %keep(s32)
%0:_(s32) = COPY $vgpr0
%src:_(s64) = G_ZEXT %0
%amt:_(s32) = G_CONSTANT i32 16
%shift:_(s64) = G_LSHR %src, %amt
%trunc:_(s16) = G_TRUNC %shift
%foo:_(s16) = G_CONSTANT i16 55
%keep:_(s32) = G_MERGE_VALUES %trunc, %foo
$vgpr0 = COPY %keep
...
---
name: s16_trunc_s64_ashr_16
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; CHECK-LABEL: name: s16_trunc_s64_ashr_16
; CHECK: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; CHECK-NEXT: %amt:_(s32) = G_CONSTANT i32 16
; CHECK-NEXT: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[COPY]], %amt(s32)
; CHECK-NEXT: %trunc:_(s16) = G_TRUNC [[ASHR]](s32)
; CHECK-NEXT: %foo:_(s16) = G_CONSTANT i16 55
; CHECK-NEXT: %keep:_(s32) = G_MERGE_VALUES %trunc(s16), %foo(s16)
; CHECK-NEXT: $vgpr0 = COPY %keep(s32)
%0:_(s32) = COPY $vgpr0
%src:_(s64) = G_ZEXT %0
%amt:_(s32) = G_CONSTANT i32 16
%shift:_(s64) = G_ASHR %src, %amt
%trunc:_(s16) = G_TRUNC %shift
%foo:_(s16) = G_CONSTANT i16 55
%keep:_(s32) = G_MERGE_VALUES %trunc, %foo
$vgpr0 = COPY %keep
...
---
name: s16_trunc_s64_lshr_17_nofold
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; CHECK-LABEL: name: s16_trunc_s64_lshr_17_nofold
; CHECK: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; CHECK-NEXT: %src:_(s64) = G_ZEXT [[COPY]](s32)
; CHECK-NEXT: %amt:_(s32) = G_CONSTANT i32 17
; CHECK-NEXT: %shift:_(s64) = G_LSHR %src, %amt(s32)
; CHECK-NEXT: %trunc:_(s16) = G_TRUNC %shift(s64)
; CHECK-NEXT: %foo:_(s16) = G_CONSTANT i16 55
; CHECK-NEXT: %keep:_(s32) = G_MERGE_VALUES %trunc(s16), %foo(s16)
; CHECK-NEXT: $vgpr0 = COPY %keep(s32)
%0:_(s32) = COPY $vgpr0
%src:_(s64) = G_ZEXT %0
%amt:_(s32) = G_CONSTANT i32 17
%shift:_(s64) = G_LSHR %src, %amt
%trunc:_(s16) = G_TRUNC %shift
%foo:_(s16) = G_CONSTANT i16 55
%keep:_(s32) = G_MERGE_VALUES %trunc, %foo
$vgpr0 = COPY %keep
...
---
name: s26_trunc_s64_lshr_6
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; CHECK-LABEL: name: s26_trunc_s64_lshr_6
; CHECK: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; CHECK-NEXT: %amt:_(s32) = G_CONSTANT i32 6
; CHECK-NEXT: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[COPY]], %amt(s32)
; CHECK-NEXT: %trunc:_(s26) = G_TRUNC [[LSHR]](s32)
; CHECK-NEXT: %foo:_(s26) = G_CONSTANT i26 55
; CHECK-NEXT: %keep0:_(s26) = G_ADD %trunc, %foo
; CHECK-NEXT: %keep1:_(s32) = G_ANYEXT %keep0(s26)
; CHECK-NEXT: $vgpr0 = COPY %keep1(s32)
%0:_(s32) = COPY $vgpr0
%src:_(s64) = G_ZEXT %0
%amt:_(s32) = G_CONSTANT i32 6
%shift:_(s64) = G_LSHR %src, %amt
%trunc:_(s26) = G_TRUNC %shift
%foo:_(s26) = G_CONSTANT i26 55
%keep0:_(s26) = G_ADD %trunc, %foo
%keep1:_(s32) = G_ANYEXT %keep0
$vgpr0 = COPY %keep1
...
---
name: s26_trunc_s64_lshr_7_nofold
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; CHECK-LABEL: name: s26_trunc_s64_lshr_7_nofold
; CHECK: liveins: $vgpr0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; CHECK-NEXT: %src:_(s64) = G_ZEXT [[COPY]](s32)
; CHECK-NEXT: %amt:_(s32) = G_CONSTANT i32 7
; CHECK-NEXT: %shift:_(s64) = G_LSHR %src, %amt(s32)
; CHECK-NEXT: %trunc:_(s26) = G_TRUNC %shift(s64)
; CHECK-NEXT: %foo:_(s26) = G_CONSTANT i26 55
; CHECK-NEXT: %keep0:_(s26) = G_ADD %trunc, %foo
; CHECK-NEXT: %keep1:_(s32) = G_ANYEXT %keep0(s26)
; CHECK-NEXT: $vgpr0 = COPY %keep1(s32)
%0:_(s32) = COPY $vgpr0
%src:_(s64) = G_ZEXT %0
%amt:_(s32) = G_CONSTANT i32 7
%shift:_(s64) = G_LSHR %src, %amt
%trunc:_(s26) = G_TRUNC %shift
%foo:_(s26) = G_CONSTANT i26 55
%keep0:_(s26) = G_ADD %trunc, %foo
%keep1:_(s32) = G_ANYEXT %keep0
$vgpr0 = COPY %keep1
...
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