diff options
Diffstat (limited to 'llvm/test/Transforms/SafeStack/escape-gep-store.ll')
| -rw-r--r-- | llvm/test/Transforms/SafeStack/escape-gep-store.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/llvm/test/Transforms/SafeStack/escape-gep-store.ll b/llvm/test/Transforms/SafeStack/escape-gep-store.ll new file mode 100644 index 00000000000..7c6c0a318b1 --- /dev/null +++ b/llvm/test/Transforms/SafeStack/escape-gep-store.ll @@ -0,0 +1,23 @@ +; 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 + +%struct.pair = type { i32, i32 } + +@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 + +; Addr-of struct element. (GEP followed by store). +; safestack attribute +; Requires protector. +define void @foo() nounwind uwtable safestack { +entry: + ; CHECK: __safestack_unsafe_stack_ptr + %c = alloca %struct.pair, align 4 + %b = alloca i32*, align 8 + %y = getelementptr inbounds %struct.pair, %struct.pair* %c, i32 0, i32 1 + store i32* %y, i32** %b, align 8 + %0 = load i32*, i32** %b, align 8 + %call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32* %0) + ret void +} + +declare i32 @printf(i8*, ...) |
