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- ; 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*, ...)
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