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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/redundant-orrwrs-from-zero-extend.mir
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

71 lines
1.5 KiB
YAML

# RUN: llc -mtriple=aarch64 -run-pass aarch64-mi-peephole-opt -verify-machineinstrs -o - %s | FileCheck %s
# RUN: llc -mtriple=aarch64 -passes=aarch64-mi-peephole-opt -o - %s | FileCheck %s
---
name: test1
# CHECK-LABEL: name: test1
alignment: 4
tracksRegLiveness: true
registers:
- { id: 0, class: gpr32 }
- { id: 1, class: gpr32 }
- { id: 2, class: gpr32 }
- { id: 3, class: gpr32 }
- { id: 4, class: gpr64 }
body: |
bb.0:
liveins: $w0, $w1
%0:gpr32 = COPY $w0
%1:gpr32 = COPY $w1
B %bb.1
bb.1:
%2:gpr32 = nsw ADDWrr %0, %1
B %bb.2
bb.2:
; CHECK-LABEL: bb.2:
; CHECK-NOT: %3:gpr32 = ORRWrs $wzr, %2, 0
; The ORRWrs should be removed.
%3:gpr32 = ORRWrs $wzr, %2, 0
%4:gpr64 = SUBREG_TO_REG %3, %subreg.sub_32
B %bb.3
bb.3:
$x0 = COPY %4
RET_ReallyLR implicit $x0
...
---
name: test2
# CHECK-LABEL: name: test2
alignment: 4
tracksRegLiveness: true
registers:
- { id: 0, class: gpr64 }
- { id: 1, class: gpr32 }
- { id: 2, class: gpr32 }
- { id: 3, class: gpr64 }
body: |
bb.0:
liveins: $x0
%0:gpr64 = COPY $x0
B %bb.1
bb.1:
%1:gpr32 = EXTRACT_SUBREG %0, %subreg.sub_32
B %bb.2
bb.2:
; CHECK-LABEL: bb.2:
; CHECK: %2:gpr32 = ORRWrs $wzr, %1, 0
; The ORRWrs should not be removed.
%2:gpr32 = ORRWrs $wzr, %1, 0
%3:gpr64 = SUBREG_TO_REG %2, %subreg.sub_32
B %bb.3
bb.3:
$x0 = COPY %3
RET_ReallyLR implicit $x0
...