| ; 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*, ...) |