1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
|
; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
%struct.pair = type { i32, i32 }
@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
; Addr-of struct element, GEP followed by callinst.
; safestack attribute
; Requires protector.
define void @foo() nounwind uwtable safestack {
entry:
; CHECK: __safestack_unsafe_stack_ptr
%c = alloca %struct.pair, align 4
%y = getelementptr inbounds %struct.pair, %struct.pair* %c, i64 0, i32 1
%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32* %y) nounwind
ret void
}
declare i32 @printf(i8*, ...)
|
