24 lines
824 B
LLVM
24 lines
824 B
LLVM
|
; 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 store).
|
||
|
|
; safestack attribute
|
||
|
|
; Requires protector.
|
||
|
|
define void @foo() nounwind uwtable safestack {
|
||
|
|
entry:
|
||
|
|
; CHECK: __safestack_unsafe_stack_ptr
|
||
|
|
%c = alloca %struct.pair, align 4
|
||
|
|
%b = alloca i32*, align 8
|
||
|
|
%y = getelementptr inbounds %struct.pair, %struct.pair* %c, i32 0, i32 1
|
||
|
|
store i32* %y, i32** %b, align 8
|
||
|
|
%0 = load i32*, i32** %b, align 8
|
||
|
|
%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32* %0)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare i32 @printf(i8*, ...)
|