File: writeonly.ll

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llvm-toolchain-13 1%3A13.0.1-6~deb11u1
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; RUN: opt -S -early-cse -earlycse-debug-hash < %s | FileCheck %s

@var = global i32 undef
declare void @foo() nounwind

define void @test() {
; CHECK-LABEL: @test(
; CHECK-NOT: store
  store i32 1, i32* @var
; CHECK: call void @foo()
  call void @foo() writeonly
; CHECK: store i32 2, i32* @var
  store i32 2, i32* @var
  ret void
}