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
|
|
|
|
@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
|
|
|
|
; Addr-of a local cast to a ptr of a different type
|
|
; (e.g., int a; ... ; float *b = &a;)
|
|
; safestack attribute
|
|
; Requires protector.
|
|
define void @foo() nounwind uwtable safestack {
|
|
entry:
|
|
; CHECK: __safestack_unsafe_stack_ptr
|
|
%a = alloca i32, align 4
|
|
%b = alloca float*, align 8
|
|
store i32 0, i32* %a, align 4
|
|
%0 = bitcast i32* %a to float*
|
|
store float* %0, float** %b, align 8
|
|
%1 = load float*, float** %b, align 8
|
|
%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), float* %1)
|
|
ret void
|
|
}
|
|
|
|
declare i32 @printf(i8*, ...)
|