| // RUN: %clang_cc1 -x objective-c -emit-llvm -triple x86_64-apple-macosx10.10.0 -fsanitize=bool %s -o - -w | FileCheck %s -check-prefixes=SHARED,OBJC |
| // RUN: %clang_cc1 -x objective-c++ -emit-llvm -triple x86_64-apple-macosx10.10.0 -fsanitize=bool %s -o - -w | FileCheck %s -check-prefixes=SHARED,OBJC |
| // RUN: %clang_cc1 -x c -emit-llvm -triple x86_64-apple-macosx10.10.0 -fsanitize=bool %s -o - | FileCheck %s -check-prefixes=SHARED,C |
| |
| typedef signed char BOOL; |
| |
| // SHARED-LABEL: f1 |
| BOOL f1() { |
| // OBJC: call void @__ubsan_handle_load_invalid_value |
| // C-NOT: call void @__ubsan_handle_load_invalid_value |
| BOOL a = 2; |
| return a + 1; |
| // SHARED: ret i8 |
| } |
| |
| struct S1 { |
| BOOL b1 : 1; |
| }; |
| |
| // SHARED-LABEL: f2 |
| BOOL f2(struct S1 *s) { |
| // OBJC: [[LOAD:%.*]] = load i8, i8* {{.*}} |
| // OBJC: [[SHL:%.*]] = shl i8 [[LOAD]], 7 |
| // OBJC: [[ASHR:%.*]] = ashr i8 [[SHL]], 7 |
| // OBJC: icmp ule i8 [[ASHR]], 1, !nosanitize |
| // OBJC: call void @__ubsan_handle_load_invalid_value |
| |
| // C-NOT: call void @__ubsan_handle_load_invalid_value |
| return s->b1; |
| // SHARED: ret i8 |
| } |
| |
| #ifdef __OBJC__ |
| @interface I1 { |
| @public |
| BOOL b1 : 1; |
| } |
| @property (nonatomic) BOOL b1; |
| @end |
| @implementation I1 |
| @synthesize b1; |
| @end |
| |
| // Check the synthesized getter. |
| // OBJC-LABEL: define internal signext i8 @"\01-[I1 b1]" |
| // OBJC: [[IVAR:%.*]] = load i64, i64* @"OBJC_IVAR_$_I1.b1" |
| // OBJC: [[ADDR:%.*]] = getelementptr inbounds i8, i8* {{.*}}, i64 [[IVAR]] |
| // OBJC: [[LOAD:%.*]] = load i8, i8* {{.*}} |
| // OBJC: [[SHL:%.*]] = shl i8 [[LOAD]], 7 |
| // OBJC: [[ASHR:%.*]] = ashr i8 [[SHL]], 7 |
| // OBJC: icmp ule i8 [[ASHR]], 1, !nosanitize |
| // OBJC: call void @__ubsan_handle_load_invalid_value |
| |
| // Also check direct accesses to the ivar. |
| // OBJC-LABEL: f3 |
| BOOL f3(I1 *i) { |
| // OBJC: [[LOAD:%.*]] = load i8, i8* {{.*}} |
| // OBJC: [[SHL:%.*]] = shl i8 [[LOAD]], 7 |
| // OBJC: [[ASHR:%.*]] = ashr i8 [[SHL]], 7 |
| // OBJC: icmp ule i8 [[ASHR]], 1, !nosanitize |
| // OBJC: call void @__ubsan_handle_load_invalid_value |
| |
| return i->b1; |
| // OBJC: ret i8 |
| } |
| #endif /* __OBJC__ */ |
