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Diffstat (limited to 'test/Transforms/SafeStack/setjmp.ll')
| -rw-r--r-- | test/Transforms/SafeStack/setjmp.ll | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/test/Transforms/SafeStack/setjmp.ll b/test/Transforms/SafeStack/setjmp.ll new file mode 100644 index 000000000000..e38bff68e94c --- /dev/null +++ b/test/Transforms/SafeStack/setjmp.ll @@ -0,0 +1,37 @@ +; 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.__jmp_buf_tag = type { [8 x i64], i32, %struct.__sigset_t } +%struct.__sigset_t = type { [16 x i64] } + +@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 +@buf = internal global [1 x %struct.__jmp_buf_tag] zeroinitializer, align 16 + +; setjmp/longjmp test. +; Requires protector. +define i32 @foo() nounwind uwtable safestack { +entry: + ; CHECK: %[[SP:.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr + ; CHECK: %[[STATICTOP:.*]] = getelementptr i8, i8* %[[SP]], i32 -16 + %retval = alloca i32, align 4 + %x = alloca i32, align 4 + store i32 0, i32* %retval + store i32 42, i32* %x, align 4 + %call = call i32 @_setjmp(%struct.__jmp_buf_tag* getelementptr inbounds ([1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* @buf, i32 0, i32 0)) returns_twice + ; CHECK: setjmp + ; CHECK-NEXT: store i8* %[[STATICTOP]], i8** @__safestack_unsafe_stack_ptr + %tobool = icmp ne i32 %call, 0 + br i1 %tobool, label %if.else, label %if.then +if.then: ; preds = %entry + call void @funcall(i32* %x) + br label %if.end +if.else: ; preds = %entry + call i32 (...) @dummy() + br label %if.end +if.end: ; preds = %if.else, %if.then + ret i32 0 +} + +declare i32 @_setjmp(%struct.__jmp_buf_tag*) +declare void @funcall(i32*) +declare i32 @dummy(...) |