llvm-project/llvm/test/Transforms/DeadStoreElimination/pr11390.ll

39 lines
1.6 KiB
LLVM

; RUN: opt -basicaa -dse -S < %s | FileCheck %s
; PR11390
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define fastcc void @cat_domain(i8* nocapture %name, i8* nocapture %domain, i8**
nocapture %s) nounwind uwtable {
entry:
%call = tail call i64 @strlen(i8* %name) nounwind readonly
%call1 = tail call i64 @strlen(i8* %domain) nounwind readonly
%add = add i64 %call, 1
%add2 = add i64 %add, %call1
%add3 = add i64 %add2, 1
%call4 = tail call noalias i8* @malloc(i64 %add3) nounwind
store i8* %call4, i8** %s, align 8
%tobool = icmp eq i8* %call4, null
br i1 %tobool, label %return, label %if.end
if.end: ; preds = %entry
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %call4, i8* %name, i64 %call, i1 false)
%arrayidx = getelementptr inbounds i8, i8* %call4, i64 %call
store i8 46, i8* %arrayidx, align 1
; CHECK: store i8 46
%add.ptr5 = getelementptr inbounds i8, i8* %call4, i64 %add
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %add.ptr5, i8* %domain, i64 %call1, i1 false)
%arrayidx8 = getelementptr inbounds i8, i8* %call4, i64 %add2
store i8 0, i8* %arrayidx8, align 1
br label %return
return: ; preds = %if.end, %entry
ret void
}
declare i64 @strlen(i8* nocapture) nounwind readonly
declare noalias i8* @malloc(i64) nounwind
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind