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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/GlobalISel/select-cmpxchg.mir
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64-- -mattr=+lse -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s
--- |
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
define void @cmpxchg_i32(ptr %addr) { ret void }
define void @cmpxchg_i64(ptr %addr) { ret void }
...
---
name: cmpxchg_i32
legalized: true
regBankSelected: true
body: |
bb.0:
liveins: $x0
; CHECK-LABEL: name: cmpxchg_i32
; CHECK: liveins: $x0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr64sp = COPY $x0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr32 = COPY $wzr
; CHECK-NEXT: [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 1
; CHECK-NEXT: [[CASW:%[0-9]+]]:gpr32 = CASW [[COPY1]], [[MOVi32imm]], [[COPY]] :: (load store monotonic (s32) on %ir.addr)
; CHECK-NEXT: $w0 = COPY [[CASW]]
%0:gpr(p0) = COPY $x0
%1:gpr(s32) = G_CONSTANT i32 0
%2:gpr(s32) = G_CONSTANT i32 1
%3:gpr(s32) = G_ATOMIC_CMPXCHG %0, %1, %2 :: (load store monotonic (s32) on %ir.addr)
$w0 = COPY %3(s32)
...
---
name: cmpxchg_i64
legalized: true
regBankSelected: true
body: |
bb.0:
liveins: $x0
; CHECK-LABEL: name: cmpxchg_i64
; CHECK: liveins: $x0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr64sp = COPY $x0
; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr64 = COPY $xzr
; CHECK-NEXT: [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 1
; CHECK-NEXT: [[SUBREG_TO_REG:%[0-9]+]]:gpr64 = SUBREG_TO_REG [[MOVi32imm]], %subreg.sub_32
; CHECK-NEXT: [[CASX:%[0-9]+]]:gpr64 = CASX [[COPY1]], [[SUBREG_TO_REG]], [[COPY]] :: (load store monotonic (s64) on %ir.addr)
; CHECK-NEXT: $x0 = COPY [[CASX]]
%0:gpr(p0) = COPY $x0
%1:gpr(s64) = G_CONSTANT i64 0
%2:gpr(s64) = G_CONSTANT i64 1
%3:gpr(s64) = G_ATOMIC_CMPXCHG %0, %1, %2 :: (load store monotonic (s64) on %ir.addr)
$x0 = COPY %3(s64)
...