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TheRock/compiler/amd-llvm/llvm/test/Transforms/DeadStoreElimination/2016-07-17-UseAfterFree.ll
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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

32 lines
1.0 KiB
LLVM

; RUN: opt < %s -passes=dse -S -enable-dse-partial-overwrite-tracking | FileCheck %s
; PR28588
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; Function Attrs: nounwind
define void @_UPT_destroy(ptr nocapture %ptr) local_unnamed_addr #0 {
entry:
%edi = getelementptr inbounds i8, ptr %ptr, i64 8
; CHECK-NOT: tail call void @llvm.memset.p0.i64(ptr align 8 %edi, i8 0, i64 176, i1 false)
; CHECK-NOT: store i32 -1, ptr %addr
tail call void @llvm.memset.p0.i64(ptr align 8 %edi, i8 0, i64 176, i1 false)
%format4.i = getelementptr inbounds i8, ptr %ptr, i64 144
store i32 -1, ptr %format4.i, align 8
; CHECK: tail call void @free
tail call void @free(ptr nonnull %ptr)
ret void
}
; Function Attrs: nounwind
declare void @free(ptr nocapture allocptr) local_unnamed_addr #0
; Function Attrs: argmemonly nounwind
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1) #1
attributes #0 = { nounwind allockind("free")}
attributes #1 = { argmemonly nounwind }