diff options
Diffstat (limited to 'llvm/test/Transforms/SafeStack/escape-gep-negative.ll')
| -rw-r--r-- | llvm/test/Transforms/SafeStack/escape-gep-negative.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SafeStack/escape-gep-negative.ll b/llvm/test/Transforms/SafeStack/escape-gep-negative.ll new file mode 100644 index 00000000000..80d405de36d --- /dev/null +++ b/llvm/test/Transforms/SafeStack/escape-gep-negative.ll @@ -0,0 +1,18 @@ +; 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, optimized into a GEP (e.g., &a - 12) +; safestack attribute +; Requires protector. +define void @foo() nounwind uwtable safestack { +entry: + ; CHECK: __safestack_unsafe_stack_ptr + %a = alloca i32, align 4 + %add.ptr5 = getelementptr inbounds i32, i32* %a, i64 -12 + %call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32* %add.ptr5) nounwind + ret void +} + +declare i32 @printf(i8*, ...) |
