File: debuginfo.ll

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llvm-toolchain-20 1%3A20.1.6-1~exp1
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; RUN: opt < %s -passes=debugify,dse -S | FileCheck %s
; RUN: opt < %s -passes=debugify,dse -S --try-experimental-debuginfo-iterators | FileCheck %s

target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"

declare noalias ptr @malloc(i32)

declare void @test_f()

define ptr @test_salvage(i32 %arg) {
; Check that all four original local variables have their values preserved.
; CHECK-LABEL: @test_salvage(
; CHECK-NEXT: malloc
; CHECK-NEXT: #dbg_value(ptr %p, ![[p:.*]], !DIExpression(),
; CHECK-NEXT: #dbg_value(i32 %arg, ![[DEAD:.*]], !DIExpression(DW_OP_plus_uconst, 1, DW_OP_stack_value),
; CHECK-NEXT: call void @test_f()
; CHECK-NEXT: store i32 0, ptr %p

  %p = tail call ptr @malloc(i32 4)
  %DEAD = add i32 %arg, 1
  store i32 %DEAD, ptr %p
  call void @test_f()
  store i32 0, ptr %p
  ret ptr %p
}

; CHECK: ![[p]] = !DILocalVariable(name: "1"
; CHECK: ![[DEAD]] = !DILocalVariable(name: "2"