xref: /llvm-project/llvm/test/Transforms/SafeStack/X86/escape-gep-negative.ll (revision 3bd517205799a152689434ceddf9493765f1e883)
1; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
2; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
3; RUN: opt -passes=safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
4; RUN: opt -passes=safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
5
6@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
7
8; Addr-of a local, optimized into a GEP (e.g., &a - 12)
9;  safestack attribute
10; Requires protector.
11define void @foo() nounwind uwtable safestack {
12entry:
13  ; CHECK: __safestack_unsafe_stack_ptr
14  %a = alloca i32, align 4
15  %add.ptr5 = getelementptr inbounds i32, ptr %a, i64 -12
16  %call = call i32 (ptr, ...) @printf(ptr @.str, ptr %add.ptr5) nounwind
17  ret void
18}
19
20declare i32 @printf(ptr, ...)
21