eb75af223f
This reverts commit a415b4dfcc.
Modify the instruction in place to transform it into a REG_SEQUENCE,
which is what other implementations of foldImmediate do. Also start
erasing the def instruction if there are no other uses.
Fixes #91110.
207 lines
6.5 KiB
YAML
207 lines
6.5 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4
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# RUN: llc -mtriple=s390x-linux-gnu -mcpu=z13 -run-pass=peephole-opt -o - %s | FileCheck %s
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---
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name: fold_vgbm_0_copyvr128_to_gr128_virtreg
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r2d
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; CHECK-LABEL: name: fold_vgbm_0_copyvr128_to_gr128_virtreg
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; CHECK: liveins: $r2d
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64bit = COPY $r2d
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:addr64bit = COPY [[COPY]]
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; CHECK-NEXT: [[LGHI:%[0-9]+]]:gr64bit = LGHI 0
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; CHECK-NEXT: [[REG_SEQUENCE:%[0-9]+]]:gr128bit = REG_SEQUENCE [[LGHI]], %subreg.subreg_h64, [[LGHI]], %subreg.subreg_l64
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; CHECK-NEXT: $r0q = COPY [[REG_SEQUENCE]]
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; CHECK-NEXT: Return implicit $r0q
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%0:gr64bit = COPY $r2d
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%1:addr64bit = COPY %0
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%2:vr128bit = VGBM 0
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%3:gr128bit = COPY %2
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$r0q = COPY %3
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Return implicit $r0q
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...
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---
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name: fold_vgbm_0_copyvr128_to_gr128_virtreg_dbg_use
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r2d
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; CHECK-LABEL: name: fold_vgbm_0_copyvr128_to_gr128_virtreg_dbg_use
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; CHECK: liveins: $r2d
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64bit = COPY $r2d
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:addr64bit = COPY [[COPY]]
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; CHECK-NEXT: [[LGHI:%[0-9]+]]:gr64bit = LGHI 0
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; CHECK-NEXT: [[REG_SEQUENCE:%[0-9]+]]:gr128bit = REG_SEQUENCE [[LGHI]], %subreg.subreg_h64, [[LGHI]], %subreg.subreg_l64
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; CHECK-NEXT: DBG_VALUE %2:vr128bit
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; CHECK-NEXT: $r0q = COPY [[REG_SEQUENCE]]
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; CHECK-NEXT: Return implicit $r0q
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%0:gr64bit = COPY $r2d
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%1:addr64bit = COPY %0
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%2:vr128bit = VGBM 0
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%3:gr128bit = COPY %2
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DBG_VALUE %2
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$r0q = COPY %3
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Return implicit $r0q
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...
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---
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name: fold_vgbm_0_copyvr128_to_gr128_virtreg_multi_use
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r2d
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; CHECK-LABEL: name: fold_vgbm_0_copyvr128_to_gr128_virtreg_multi_use
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; CHECK: liveins: $r2d
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64bit = COPY $r2d
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:addr64bit = COPY [[COPY]]
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; CHECK-NEXT: [[VGBM:%[0-9]+]]:vr128bit = VGBM 0
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr128bit = COPY [[VGBM]]
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; CHECK-NEXT: $r0q = COPY [[COPY2]]
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; CHECK-NEXT: $r2q = COPY [[COPY2]]
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; CHECK-NEXT: Return implicit $r0q, implicit $r2q
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%0:gr64bit = COPY $r2d
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%1:addr64bit = COPY %0
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%2:vr128bit = VGBM 0
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%3:gr128bit = COPY %2
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%4:gr128bit = COPY %2
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$r0q = COPY %3
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$r2q = COPY %4
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Return implicit $r0q, implicit $r2q
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...
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---
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name: fold_vgbm_0_copyvr128_to_gr128_physreg
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r2d
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; CHECK-LABEL: name: fold_vgbm_0_copyvr128_to_gr128_physreg
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; CHECK: liveins: $r2d
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64bit = COPY $r2d
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:addr64bit = COPY [[COPY]]
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; CHECK-NEXT: [[VGBM:%[0-9]+]]:vr128bit = VGBM 0
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; CHECK-NEXT: $r0q = COPY [[VGBM]]
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; CHECK-NEXT: Return implicit $r0q
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%0:gr64bit = COPY $r2d
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%1:addr64bit = COPY %0
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%2:vr128bit = VGBM 0
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$r0q = COPY %2
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Return implicit $r0q
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...
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---
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name: no_fold_vgbm_0_copyvr128_to_vr128_virtreg
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r2d
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; CHECK-LABEL: name: no_fold_vgbm_0_copyvr128_to_vr128_virtreg
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; CHECK: liveins: $r2d
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64bit = COPY $r2d
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:addr64bit = COPY [[COPY]]
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; CHECK-NEXT: [[VGBM:%[0-9]+]]:vr128bit = VGBM 0
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:vr128bit = COPY [[VGBM]]
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; CHECK-NEXT: $v0 = COPY [[COPY2]]
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; CHECK-NEXT: Return implicit $v0
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%0:gr64bit = COPY $r2d
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%1:addr64bit = COPY %0
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%2:vr128bit = VGBM 0
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%3:vr128bit = COPY %2
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$v0 = COPY %3
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Return implicit $v0
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...
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---
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name: no_fold_vgbm_0_copyvr128_to_vr128_physreg
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r2d
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; CHECK-LABEL: name: no_fold_vgbm_0_copyvr128_to_vr128_physreg
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; CHECK: liveins: $r2d
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64bit = COPY $r2d
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:addr64bit = COPY [[COPY]]
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; CHECK-NEXT: [[VGBM:%[0-9]+]]:vr128bit = VGBM 0
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; CHECK-NEXT: $v0 = COPY [[VGBM]]
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; CHECK-NEXT: Return implicit $v0
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%0:gr64bit = COPY $r2d
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%1:addr64bit = COPY %0
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%2:vr128bit = VGBM 0
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$v0 = COPY %2
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Return implicit $v0
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...
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---
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name: fold_vgbm_1_copyvr128_to_gr128_virtreg
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r2d
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; CHECK-LABEL: name: fold_vgbm_1_copyvr128_to_gr128_virtreg
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; CHECK: liveins: $r2d
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64bit = COPY $r2d
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:addr64bit = COPY [[COPY]]
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; CHECK-NEXT: [[VGBM:%[0-9]+]]:vr128bit = VGBM 1
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr128bit = COPY [[VGBM]]
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; CHECK-NEXT: $r0q = COPY [[COPY2]]
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; CHECK-NEXT: Return implicit $r0q
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%0:gr64bit = COPY $r2d
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%1:addr64bit = COPY %0
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%2:vr128bit = VGBM 1
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%3:gr128bit = COPY %2
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$r0q = COPY %3
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Return implicit $r0q
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...
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---
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name: no_fold_vgbm_0_noncopy_use
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r2d
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; CHECK-LABEL: name: no_fold_vgbm_0_noncopy_use
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; CHECK: liveins: $r2d
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64bit = COPY $r2d
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:addr64bit = COPY [[COPY]]
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; CHECK-NEXT: [[VGBM:%[0-9]+]]:vr128bit = VGBM 0
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; CHECK-NEXT: Return implicit [[VGBM]]
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%0:gr64bit = COPY $r2d
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%1:addr64bit = COPY %0
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%2:vr128bit = VGBM 0
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Return implicit %2
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...
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---
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name: fold_vgbm_0_copyvr128_to_gr64_subreg_h64
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $r2d
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; CHECK-LABEL: name: fold_vgbm_0_copyvr128_to_gr64_subreg_h64
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; CHECK: liveins: $r2d
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gr64bit = COPY $r2d
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:addr64bit = COPY [[COPY]]
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; CHECK-NEXT: [[VGBM:%[0-9]+]]:vr128bit = VGBM 0
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gr64bit = COPY [[VGBM]].subreg_h64
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; CHECK-NEXT: $r0d = COPY [[COPY2]]
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; CHECK-NEXT: Return implicit $r0d
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%0:gr64bit = COPY $r2d
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%1:addr64bit = COPY %0
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%2:vr128bit = VGBM 0
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%3:gr64bit = COPY %2.subreg_h64
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$r0d = COPY %3
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Return implicit $r0d
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...
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