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TheRock/compiler/amd-llvm/llvm/test/Transforms/DeadStoreElimination/debuginfo.ll
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

28 lines
884 B
LLVM

; RUN: opt < %s -passes=debugify,dse -S | 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"