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TheRock/compiler/amd-llvm/clang/test/CodeGenObjC/ubsan-bool.m
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2026-09-02 16:34:47 -07:00

70 lines
2.2 KiB
Objective-C

// RUN: %clang_cc1 -no-enable-noundef-analysis -x objective-c -emit-llvm -triple x86_64-apple-macosx10.10.0 -fsanitize=bool -o - -w < %s | FileCheck %s -check-prefixes=SHARED,OBJC
// RUN: %clang_cc1 -no-enable-noundef-analysis -x objective-c++ -emit-llvm -triple x86_64-apple-macosx10.10.0 -fsanitize=bool -o - -w < %s | FileCheck %s -check-prefixes=SHARED,OBJC
// RUN: %clang_cc1 -no-enable-noundef-analysis -x c -emit-llvm -triple x86_64-apple-macosx10.10.0 -fsanitize=bool -o - < %s | FileCheck %s -check-prefixes=SHARED,C
typedef signed char BOOL;
// SHARED-LABEL: define{{.*}}f1
BOOL f1(void) {
// 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: define{{.*}}f2
BOOL f2(struct S1 *s) {
// OBJC: [[LOAD:%.*]] = load i8, ptr {{.*}}
// 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 SuperClass
@end
@interface I1 : SuperClass {
@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, ptr @"OBJC_IVAR_$_I1.b1"
// OBJC: [[ADDR:%.*]] = getelementptr inbounds i8, ptr {{.*}}, i64 [[IVAR]]
// OBJC: [[LOAD:%.*]] = load i8, ptr {{.*}}
// 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: define{{.*}}f3
BOOL f3(I1 *i) {
// OBJC: [[LOAD:%.*]] = load i8, ptr {{.*}}
// 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__ */