File: partword-cmpxchg.ll

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llvm-toolchain-19 1%3A19.1.7-3
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; RUN: llc -march=hexagon < %s | FileCheck %s

; CHECK-LABEL: danny
; CHECK: memw_locked
define i8 @danny(ptr %a0) unnamed_addr #0 {
start:
  %v0 = cmpxchg ptr %a0, i8 0, i8 1 seq_cst seq_cst
  %v1 = extractvalue { i8, i1 } %v0, 0
  ret i8 %v1
}

; CHECK-LABEL: sammy
; CHECK: memw_locked
define i16 @sammy(ptr %a0) unnamed_addr #0 {
start:
  %v0 = cmpxchg ptr %a0, i16 0, i16 1 seq_cst seq_cst
  %v1 = extractvalue { i16, i1 } %v0, 0
  ret i16 %v1
}

; CHECK-LABEL: kirby
; CHECK: memw_locked
define i32 @kirby(ptr %a0) unnamed_addr #0 {
start:
  %v0 = cmpxchg ptr %a0, i32 0, i32 1 seq_cst seq_cst
  %v1 = extractvalue { i32, i1 } %v0, 0
  ret i32 %v1
}