• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
2; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
3
4@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
5
6; no safestack attribute
7; Requires no protector.
8
9; CHECK-NOT: __safestack_unsafe_stack_ptr
10
11; CHECK: @foo
12define void @foo(i8* %a) nounwind uwtable {
13entry:
14  ; CHECK-NOT: __safestack_unsafe_stack_ptr
15  %a.addr = alloca i8*, align 8
16  %buf = alloca [16 x i8], align 16
17  store i8* %a, i8** %a.addr, align 8
18  %arraydecay = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i32 0
19  %0 = load i8*, i8** %a.addr, align 8
20  %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
21  %arraydecay1 = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i32 0
22  %call2 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1)
23  ret void
24}
25
26declare i8* @strcpy(i8*, i8*)
27declare i32 @printf(i8*, ...)
28