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Diffstat (limited to 'test/Transforms/SafeStack/array.ll')
-rw-r--r-- | test/Transforms/SafeStack/array.ll | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/test/Transforms/SafeStack/array.ll b/test/Transforms/SafeStack/array.ll new file mode 100644 index 000000000000..6036bfc2c9c5 --- /dev/null +++ b/test/Transforms/SafeStack/array.ll @@ -0,0 +1,38 @@ +; 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 + +; array [4 x i8] +; Requires protector. + +define void @foo(i8* %a) nounwind uwtable safestack { +entry: + ; CHECK: %[[USP:.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr + + ; CHECK: %[[USST:.*]] = getelementptr i8, i8* %[[USP]], i32 -16 + + ; CHECK: store i8* %[[USST]], i8** @__safestack_unsafe_stack_ptr + + ; CHECK: %[[AADDR:.*]] = alloca i8*, align 8 + %a.addr = alloca i8*, align 8 + + ; CHECK: %[[BUFPTR:.*]] = getelementptr i8, i8* %[[USP]], i32 -4 + ; CHECK: %[[BUFPTR2:.*]] = bitcast i8* %[[BUFPTR]] to [4 x i8]* + %buf = alloca [4 x i8], align 1 + + ; CHECK: store i8* {{.*}}, i8** %[[AADDR]], align 8 + store i8* %a, i8** %a.addr, align 8 + + ; CHECK: %[[GEP:.*]] = getelementptr inbounds [4 x i8], [4 x i8]* %[[BUFPTR2]], i32 0, i32 0 + %gep = getelementptr inbounds [4 x i8], [4 x i8]* %buf, i32 0, i32 0 + + ; CHECK: %[[A2:.*]] = load i8*, i8** %[[AADDR]], align 8 + %a2 = load i8*, i8** %a.addr, align 8 + + ; CHECK: call i8* @strcpy(i8* %[[GEP]], i8* %[[A2]]) + %call = call i8* @strcpy(i8* %gep, i8* %a2) + + ; CHECK: store i8* %[[USP]], i8** @__safestack_unsafe_stack_ptr + ret void +} + +declare i8* @strcpy(i8*, i8*) |