xref: /llvm-project/llvm/test/CodeGen/X86/dynamic-alloca-lifetime.ll (revision 2f448bf509432c1a19ec46ab8cbc7353c03c6280)
1; RUN: llc -no-stack-coloring=false < %s | FileCheck %s
2
3; This test crashed in PEI because the stack protector was dead.
4; This was due to it being colored, which was in turn due to incorrect
5; lifetimes being applied to the stack protector frame index.
6
7; CHECK: stack_chk_guard
8
9target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
10target triple = "i386-apple-macosx10.10.0"
11
12; Function Attrs: nounwind
13declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #0
14
15; Function Attrs: nounwind
16declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #0
17
18; Function Attrs: ssp
19define void @foo(i1 %cond1, i1 %cond2) #1 {
20entry:
21  %bitmapBuffer = alloca [8192 x i8], align 1
22  br i1 %cond1, label %end1, label %bb1
23
24bb1:
25  %bitmapBuffer229 = alloca [8192 x i8], align 1
26  br i1 %cond2, label %end1, label %if.else130
27
28end1:
29  ret void
30
31if.else130:                                       ; preds = %bb1
32  call void @llvm.lifetime.start.p0(i64 8192, ptr %bitmapBuffer) #0
33  call void @llvm.lifetime.end.p0(i64 8192, ptr %bitmapBuffer) #0
34  call void @llvm.lifetime.start.p0(i64 8192, ptr %bitmapBuffer229) #0
35  call void @llvm.lifetime.end.p0(i64 8192, ptr %bitmapBuffer229) #0
36  br label %end1
37}
38
39declare void @bar()
40
41attributes #0 = { nounwind }
42attributes #1 = { ssp }
43