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llvm-project/clang/test/CodeGenObjCXX/objc-struct-cxx-abi.mm

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[OpaquePtrs][Clang] Add -no-opaque-pointers to tests (NFC) This adds -no-opaque-pointers to clang tests whose output will change when opaque pointers are enabled by default. This is intended to be part of the migration approach described in https://discourse.llvm.org/t/enabling-opaque-pointers-by-default/61322/9. The patch has been produced by replacing %clang_cc1 with %clang_cc1 -no-opaque-pointers for tests that fail with opaque pointers enabled. Worth noting that this doesn't cover all tests, there's a remaining ~40 tests not using %clang_cc1 that will need a followup change. Differential Revision: https://reviews.llvm.org/D123115
2022-04-07 18:03:55 +08:00
// RUN: %clang_cc1 -no-opaque-pointers -triple arm64-apple-ios11 -std=c++11 -fobjc-arc -fobjc-weak -fobjc-runtime-has-weak -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -no-opaque-pointers -triple arm64-apple-ios11 -std=c++11 -fobjc-arc -fobjc-weak -fobjc-runtime-has-weak -fclang-abi-compat=4.0 -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -no-opaque-pointers -triple arm64-apple-ios11 -std=c++11 -fobjc-arc -fobjc-weak -fobjc-runtime-has-weak -emit-llvm -o - -DTRIVIALABI %s | FileCheck %s
// RUN: %clang_cc1 -no-opaque-pointers -triple arm64-apple-ios11 -std=c++11 -fobjc-arc -fobjc-weak -fobjc-runtime-has-weak -fclang-abi-compat=4.0 -emit-llvm -o - -DTRIVIALABI %s | FileCheck %s
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
// Check that structs consisting solely of __strong or __weak pointer fields are
// destructed in the callee function and structs consisting solely of __strong
// pointer fields are passed directly.
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: %[[STRUCT_STRONGWEAK:.*]] = type { i8*, i8* }
[ObjC++] Never pass structs that transitively contain __weak fields in registers. This patch fixes a bug in r328731 that caused structs transitively containing __weak fields to be passed in registers. The patch replaces the flag RecordDecl::CanPassInRegisters with a 2-bit enum that indicates whether the struct or structs containing the struct are forced to be passed indirectly. This reapplies r329617. r329617 didn't specify the underlying type for enum ArgPassingKind, which caused regression tests to fail on a windows bot. rdar://problem/39194693 Differential Revision: https://reviews.llvm.org/D45384 llvm-svn: 329635
2018-04-10 06:48:22 +08:00
// CHECK: %[[STRUCT_CONTAINSSTRONGWEAK:.*]] = type { %[[STRUCT_STRONGWEAK]] }
// CHECK: %[[STRUCT_DERIVEDSTRONGWEAK:.*]] = type { %[[STRUCT_STRONGWEAK]] }
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: %[[STRUCT_STRONG:.*]] = type { i8* }
// CHECK: %[[STRUCT_S:.*]] = type { i8* }
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
// CHECK: %[[STRUCT_CONTAINSNONTRIVIAL:.*]] = type { %{{.*}}, i8* }
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
// CHECK: %[[STRUCT_NONTRIVIAL:.*]] = type { i32* }
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
#ifdef TRIVIALABI
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
struct __attribute__((trivial_abi)) StrongWeak {
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
#else
struct StrongWeak {
#endif
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
id fstrong;
__weak id fweak;
};
[ObjC++] Never pass structs that transitively contain __weak fields in registers. This patch fixes a bug in r328731 that caused structs transitively containing __weak fields to be passed in registers. The patch replaces the flag RecordDecl::CanPassInRegisters with a 2-bit enum that indicates whether the struct or structs containing the struct are forced to be passed indirectly. This reapplies r329617. r329617 didn't specify the underlying type for enum ArgPassingKind, which caused regression tests to fail on a windows bot. rdar://problem/39194693 Differential Revision: https://reviews.llvm.org/D45384 llvm-svn: 329635
2018-04-10 06:48:22 +08:00
#ifdef TRIVIALABI
struct __attribute__((trivial_abi)) ContainsStrongWeak {
#else
struct ContainsStrongWeak {
#endif
StrongWeak sw;
};
#ifdef TRIVIALABI
struct __attribute__((trivial_abi)) DerivedStrongWeak : StrongWeak {
#else
struct DerivedStrongWeak : StrongWeak {
#endif
};
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
#ifdef TRIVIALABI
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
struct __attribute__((trivial_abi)) Strong {
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
#else
struct Strong {
#endif
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
id fstrong;
};
template<class T>
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
#ifdef TRIVIALABI
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
struct __attribute__((trivial_abi)) S {
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
#else
struct S {
#endif
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
T a;
};
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
struct NonTrivial {
NonTrivial();
NonTrivial(const NonTrivial &);
~NonTrivial();
int *a;
};
// This struct is not passed directly nor destructed in the callee because f0
// has type NonTrivial.
struct ContainsNonTrivial {
NonTrivial f0;
id f1;
};
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
@interface C
- (void)passStrong:(Strong)a;
- (void)passStrongWeak:(StrongWeak)a;
- (void)passNonTrivial:(NonTrivial)a;
@end
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define{{.*}} void @_Z19testParamStrongWeak10StrongWeak(%[[STRUCT_STRONGWEAK]]* noundef %{{.*}})
// CHECK: call noundef %struct.StrongWeak* @_ZN10StrongWeakD1Ev(
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
// CHECK-NEXT: ret void
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
void testParamStrongWeak(StrongWeak a) {
}
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define{{.*}} void @_Z18testCallStrongWeakP10StrongWeak(%[[STRUCT_STRONGWEAK]]* noundef %[[A:.*]])
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: %[[A_ADDR:.*]] = alloca %[[STRUCT_STRONGWEAK]]*, align 8
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_STRONGWEAK]], align 8
// CHECK: store %[[STRUCT_STRONGWEAK]]* %[[A]], %[[STRUCT_STRONGWEAK]]** %[[A_ADDR]], align 8
// CHECK: %[[V0:.*]] = load %[[STRUCT_STRONGWEAK]]*, %[[STRUCT_STRONGWEAK]]** %[[A_ADDR]], align 8
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: %[[CALL:.*]] = call noundef %[[STRUCT_STRONGWEAK]]* @_ZN10StrongWeakC1ERKS_(%[[STRUCT_STRONGWEAK]]* {{[^,]*}} %[[AGG_TMP]], %[[STRUCT_STRONGWEAK]]* noundef nonnull align 8 dereferenceable(16) %[[V0]])
// CHECK: call void @_Z19testParamStrongWeak10StrongWeak(%[[STRUCT_STRONGWEAK]]* noundef %[[AGG_TMP]])
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
// CHECK-NOT: call
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: ret void
void testCallStrongWeak(StrongWeak *a) {
testParamStrongWeak(*a);
}
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define{{.*}} void @_Z20testReturnStrongWeakP10StrongWeak(%[[STRUCT_STRONGWEAK:.*]]* noalias sret(%[[STRUCT_STRONGWEAK]]) align 8 %[[AGG_RESULT:.*]], %[[STRUCT_STRONGWEAK]]* noundef %[[A:.*]])
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: %[[A_ADDR:.*]] = alloca %[[STRUCT_STRONGWEAK]]*, align 8
// CHECK: store %[[STRUCT_STRONGWEAK]]* %[[A]], %[[STRUCT_STRONGWEAK]]** %[[A_ADDR]], align 8
// CHECK: %[[V0:.*]] = load %[[STRUCT_STRONGWEAK]]*, %[[STRUCT_STRONGWEAK]]** %[[A_ADDR]], align 8
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: %[[CALL:.*]] = call noundef %[[STRUCT_STRONGWEAK]]* @_ZN10StrongWeakC1ERKS_(%[[STRUCT_STRONGWEAK]]* {{[^,]*}} %[[AGG_RESULT]], %[[STRUCT_STRONGWEAK]]* noundef nonnull align 8 dereferenceable(16) %[[V0]])
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: ret void
StrongWeak testReturnStrongWeak(StrongWeak *a) {
return *a;
}
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define{{.*}} void @_Z27testParamContainsStrongWeak18ContainsStrongWeak(%[[STRUCT_CONTAINSSTRONGWEAK]]* noundef %[[A:.*]])
// CHECK: call noundef %[[STRUCT_CONTAINSSTRONGWEAK]]* @_ZN18ContainsStrongWeakD1Ev(%[[STRUCT_CONTAINSSTRONGWEAK]]* {{[^,]*}} %[[A]])
[ObjC++] Never pass structs that transitively contain __weak fields in registers. This patch fixes a bug in r328731 that caused structs transitively containing __weak fields to be passed in registers. The patch replaces the flag RecordDecl::CanPassInRegisters with a 2-bit enum that indicates whether the struct or structs containing the struct are forced to be passed indirectly. This reapplies r329617. r329617 didn't specify the underlying type for enum ArgPassingKind, which caused regression tests to fail on a windows bot. rdar://problem/39194693 Differential Revision: https://reviews.llvm.org/D45384 llvm-svn: 329635
2018-04-10 06:48:22 +08:00
void testParamContainsStrongWeak(ContainsStrongWeak a) {
}
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define{{.*}} void @_Z26testParamDerivedStrongWeak17DerivedStrongWeak(%[[STRUCT_DERIVEDSTRONGWEAK]]* noundef %[[A:.*]])
// CHECK: call noundef %[[STRUCT_DERIVEDSTRONGWEAK]]* @_ZN17DerivedStrongWeakD1Ev(%[[STRUCT_DERIVEDSTRONGWEAK]]* {{[^,]*}} %[[A]])
[ObjC++] Never pass structs that transitively contain __weak fields in registers. This patch fixes a bug in r328731 that caused structs transitively containing __weak fields to be passed in registers. The patch replaces the flag RecordDecl::CanPassInRegisters with a 2-bit enum that indicates whether the struct or structs containing the struct are forced to be passed indirectly. This reapplies r329617. r329617 didn't specify the underlying type for enum ArgPassingKind, which caused regression tests to fail on a windows bot. rdar://problem/39194693 Differential Revision: https://reviews.llvm.org/D45384 llvm-svn: 329635
2018-04-10 06:48:22 +08:00
void testParamDerivedStrongWeak(DerivedStrongWeak a) {
}
[test] Add {{.*}} to make tests immune to dso_local/dso_preemptable/(none) differences For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie and COFF, but not for Mach-O. This nuance causes unneeded binary format differences. This patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} ` if there is an explicit linkage. * Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar. * Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
2020-12-31 12:45:56 +08:00
// CHECK: define{{.*}} void @_Z15testParamStrong6Strong(i64 %[[A_COERCE:.*]])
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: %[[A:.*]] = alloca %[[STRUCT_STRONG]], align 8
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds %[[STRUCT_STRONG]], %[[STRUCT_STRONG]]* %[[A]], i32 0, i32 0
// CHECK: %[[COERCE_VAL_IP:.*]] = inttoptr i64 %[[A_COERCE]] to i8*
// CHECK: store i8* %[[COERCE_VAL_IP]], i8** %[[COERCE_DIVE]], align 8
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: %[[CALL:.*]] = call noundef %[[STRUCT_STRONG]]* @_ZN6StrongD1Ev(%[[STRUCT_STRONG]]* {{[^,]*}} %[[A]])
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: ret void
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define linkonce_odr noundef %[[STRUCT_STRONG]]* @_ZN6StrongD1Ev(
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
void testParamStrong(Strong a) {
}
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define{{.*}} void @_Z14testCallStrongP6Strong(%[[STRUCT_STRONG]]* noundef %[[A:.*]])
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: %[[A_ADDR:.*]] = alloca %[[STRUCT_STRONG]]*, align 8
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_STRONG]], align 8
// CHECK: store %[[STRUCT_STRONG]]* %[[A]], %[[STRUCT_STRONG]]** %[[A_ADDR]], align 8
// CHECK: %[[V0:.*]] = load %[[STRUCT_STRONG]]*, %[[STRUCT_STRONG]]** %[[A_ADDR]], align 8
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: %[[CALL:.*]] = call noundef %[[STRUCT_STRONG]]* @_ZN6StrongC1ERKS_(%[[STRUCT_STRONG]]* {{[^,]*}} %[[AGG_TMP]], %[[STRUCT_STRONG]]* noundef nonnull align 8 dereferenceable(8) %[[V0]])
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds %[[STRUCT_STRONG]], %[[STRUCT_STRONG]]* %[[AGG_TMP]], i32 0, i32 0
// CHECK: %[[V1:.*]] = load i8*, i8** %[[COERCE_DIVE]], align 8
// CHECK: %[[COERCE_VAL_PI:.*]] = ptrtoint i8* %[[V1]] to i64
// CHECK: call void @_Z15testParamStrong6Strong(i64 %[[COERCE_VAL_PI]])
// CHECK: ret void
void testCallStrong(Strong *a) {
testParamStrong(*a);
}
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define{{.*}} i64 @_Z16testReturnStrongP6Strong(%[[STRUCT_STRONG]]* noundef %[[A:.*]])
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: %[[RETVAL:.*]] = alloca %[[STRUCT_STRONG]], align 8
// CHECK: %[[A_ADDR:.*]] = alloca %[[STRUCT_STRONG]]*, align 8
// CHECK: store %[[STRUCT_STRONG]]* %[[A]], %[[STRUCT_STRONG]]** %[[A_ADDR]], align 8
// CHECK: %[[V0:.*]] = load %[[STRUCT_STRONG]]*, %[[STRUCT_STRONG]]** %[[A_ADDR]], align 8
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: %[[CALL:.*]] = call noundef %[[STRUCT_STRONG]]* @_ZN6StrongC1ERKS_(%[[STRUCT_STRONG]]* {{[^,]*}} %[[RETVAL]], %[[STRUCT_STRONG]]* noundef nonnull align 8 dereferenceable(8) %[[V0]])
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds %[[STRUCT_STRONG]], %[[STRUCT_STRONG]]* %[[RETVAL]], i32 0, i32 0
// CHECK: %[[V1:.*]] = load i8*, i8** %[[COERCE_DIVE]], align 8
// CHECK: %[[COERCE_VAL_PI:.*]] = ptrtoint i8* %[[V1]] to i64
// CHECK: ret i64 %[[COERCE_VAL_PI]]
Strong testReturnStrong(Strong *a) {
return *a;
}
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define{{.*}} void @_Z21testParamWeakTemplate1SIU6__weakP11objc_objectE(%[[STRUCT_S]]* noundef %{{.*}})
// CHECK: call noundef %struct.S* @_ZN1SIU6__weakP11objc_objectED1Ev(
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
// CHECK-NEXT: ret void
void testParamWeakTemplate(S<__weak id> a) {
}
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: define{{.*}} void @_Z27testParamContainsNonTrivial18ContainsNonTrivial(%[[STRUCT_CONTAINSNONTRIVIAL]]* noundef %{{.*}})
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
// CHECK-NOT: call
// CHECK: ret void
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
void testParamContainsNonTrivial(ContainsNonTrivial a) {
}
[test] Add {{.*}} to make tests immune to dso_local/dso_preemptable/(none) differences For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie and COFF, but not for Mach-O. This nuance causes unneeded binary format differences. This patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} ` if there is an explicit linkage. * Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar. * Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
2020-12-31 12:45:56 +08:00
// CHECK: define{{.*}} void @_Z26testCallContainsNonTrivialP18ContainsNonTrivial(
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: call void @_Z27testParamContainsNonTrivial18ContainsNonTrivial(%[[STRUCT_CONTAINSNONTRIVIAL]]* noundef %{{.*}})
// CHECK: call noundef %struct.ContainsNonTrivial* @_ZN18ContainsNonTrivialD1Ev(%[[STRUCT_CONTAINSNONTRIVIAL]]* {{[^,]*}} %{{.*}})
[ObjC++] Make parameter passing and function return compatible with ObjC ObjC and ObjC++ pass non-trivial structs in a way that is incompatible with each other. For example: typedef struct { id f0; __weak id f1; } S; // this code is compiled in c++. extern "C" { void foo(S s); } void caller() { // the caller passes the parameter indirectly and destructs it. foo(S()); } // this function is compiled in c. // 'a' is passed directly and is destructed in the callee. void foo(S a) { } This patch fixes the incompatibility by passing and returning structs with __strong or weak fields using the C ABI in C++ mode. __strong and __weak fields in a struct do not cause the struct to be destructed in the caller and __strong fields do not cause the struct to be passed indirectly. Also, this patch fixes the microsoft ABI bug mentioned here: https://reviews.llvm.org/D41039?id=128767#inline-364710 rdar://problem/38887866 Differential Revision: https://reviews.llvm.org/D44908 llvm-svn: 328731
2018-03-29 05:13:14 +08:00
void testCallContainsNonTrivial(ContainsNonTrivial *a) {
testParamContainsNonTrivial(*a);
Add support for attribute 'trivial_abi'. The 'trivial_abi' attribute can be applied to a C++ class, struct, or union. It makes special functions of the annotated class (the destructor and copy/move constructors) to be trivial for the purpose of calls and, as a result, enables the annotated class or containing classes to be passed or returned using the C ABI for the underlying type. When a type that is considered trivial for the purpose of calls despite having a non-trivial destructor (which happens only when the class type or one of its subobjects is a 'trivial_abi' class) is passed to a function, the callee is responsible for destroying the object. For more background, see the discussions that took place on the mailing list: http://lists.llvm.org/pipermail/cfe-dev/2017-November/055955.html http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180101/thread.html#214043 rdar://problem/35204524 Differential Revision: https://reviews.llvm.org/D41039 llvm-svn: 324269
2018-02-06 04:23:22 +08:00
}
[CodeGen] Store the return value of the target function call to the thunk's return value slot directly when the return type is an aggregate instead of doing so via a temporary This fixes PR45997 (https://bugs.llvm.org/show_bug.cgi?id=45997), which is caused by a bug that has existed since we started passing and returning C++ structs with ObjC strong pointer members (see https://reviews.llvm.org/D44908) or structs annotated with trivial_abi directly. rdar://problem/63740936 Differential Revision: https://reviews.llvm.org/D82513
2020-07-11 08:24:12 +08:00
namespace testThunk {
[test] Add {{.*}} to make tests immune to dso_local/dso_preemptable/(none) differences For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie and COFF, but not for Mach-O. This nuance causes unneeded binary format differences. This patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} ` if there is an explicit linkage. * Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar. * Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
2020-12-31 12:45:56 +08:00
// CHECK-LABEL: define{{.*}} i64 @_ZThn8_N9testThunk2D02m0Ev(
[CodeGen] Store the return value of the target function call to the thunk's return value slot directly when the return type is an aggregate instead of doing so via a temporary This fixes PR45997 (https://bugs.llvm.org/show_bug.cgi?id=45997), which is caused by a bug that has existed since we started passing and returning C++ structs with ObjC strong pointer members (see https://reviews.llvm.org/D44908) or structs annotated with trivial_abi directly. rdar://problem/63740936 Differential Revision: https://reviews.llvm.org/D82513
2020-07-11 08:24:12 +08:00
// CHECK: %[[RETVAL:.*]] = alloca %[[STRUCT_STRONG]], align 8
// CHECK: %[[CALL:.*]] = tail call i64 @_ZN9testThunk2D02m0Ev(
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds %[[STRUCT_STRONG]], %[[STRUCT_STRONG]]* %[[RETVAL]], i32 0, i32 0
// CHECK: %[[COERCE_VAL_IP:.*]] = inttoptr i64 %[[CALL]] to i8*
// CHECK: store i8* %[[COERCE_VAL_IP]], i8** %[[COERCE_DIVE]], align 8
// CHECK: %[[COERCE_DIVE2:.*]] = getelementptr inbounds %[[STRUCT_STRONG]], %[[STRUCT_STRONG]]* %[[RETVAL]], i32 0, i32 0
// CHECK: %[[V3:.*]] = load i8*, i8** %[[COERCE_DIVE2]], align 8
// CHECK: %[[COERCE_VAL_PI:.*]] = ptrtoint i8* %[[V3]] to i64
// CHECK: ret i64 %[[COERCE_VAL_PI]]
struct B0 {
virtual Strong m0();
};
struct B1 {
virtual Strong m0();
};
struct D0 : B0, B1 {
Strong m0() override;
};
Strong D0::m0() { return {}; }
}
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
namespace testNullReceiver {
[test] Add {{.*}} to make tests immune to dso_local/dso_preemptable/(none) differences For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie and COFF, but not for Mach-O. This nuance causes unneeded binary format differences. This patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} ` if there is an explicit linkage. * Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar. * Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
2020-12-31 12:45:56 +08:00
// CHECK-LABEL: define{{.*}} void @_ZN16testNullReceiver5test0EP1C(
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_STRONG]], align 8
// CHECK: br i1
// CHECK: %[[COERCE_DIVE:.*]] = getelementptr inbounds %[[STRUCT_STRONG]], %[[STRUCT_STRONG]]* %[[AGG_TMP]], i32 0, i32 0
// CHECK: %[[V7:.*]] = load i8*, i8** %[[COERCE_DIVE]], align 8
// CHECK: %[[COERCE_VAL_PI:.*]] = ptrtoint i8* %[[V7]] to i64
// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, i64)*)({{.*}}, i64 %[[COERCE_VAL_PI]])
// CHECK: br
[IRGen] Do not overwrite existing attributes in CGCall. When adding new attributes, existing attributes are dropped. While this appears to be a longstanding issue, this was highlighted by D105169 which dropped a lot of attributes due to adding the new noundef attribute. Ahmed Bougacha (@ab) tracked down the issue and provided the fix in CGCall.cpp. I bundled it up and updated the tests.
2022-01-20 21:45:19 +08:00
// CHECK: %[[CALL1:.*]] = call noundef %[[STRUCT_STRONG]]* @_ZN6StrongD1Ev(%[[STRUCT_STRONG]]* noundef nonnull align 8 dereferenceable(8) %[[AGG_TMP]])
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
// CHECK: br
void test0(C *c) {
[c passStrong:Strong()];
}
[test] Add {{.*}} to make tests immune to dso_local/dso_preemptable/(none) differences For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie and COFF, but not for Mach-O. This nuance causes unneeded binary format differences. This patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} ` if there is an explicit linkage. * Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar. * Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
2020-12-31 12:45:56 +08:00
// CHECK-LABEL: define{{.*}} void @_ZN16testNullReceiver5test1EP1C(
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_STRONGWEAK]], align 8
// CHECK: br i1
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void ({{.*}}, %[[STRUCT_STRONGWEAK]]* noundef %[[AGG_TMP]])
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
// CHECK: br
[IRGen] Do not overwrite existing attributes in CGCall. When adding new attributes, existing attributes are dropped. While this appears to be a longstanding issue, this was highlighted by D105169 which dropped a lot of attributes due to adding the new noundef attribute. Ahmed Bougacha (@ab) tracked down the issue and provided the fix in CGCall.cpp. I bundled it up and updated the tests.
2022-01-20 21:45:19 +08:00
// CHECK: %[[CALL1:.*]] = call noundef %[[STRUCT_STRONGWEAK]]* @_ZN10StrongWeakD1Ev(%[[STRUCT_STRONGWEAK]]* noundef nonnull align 8 dereferenceable(16) %[[AGG_TMP]])
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
// CHECK: br
void test1(C *c) {
[c passStrongWeak:StrongWeak()];
}
// No null check needed.
[test] Add {{.*}} to make tests immune to dso_local/dso_preemptable/(none) differences For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie and COFF, but not for Mach-O. This nuance causes unneeded binary format differences. This patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} ` if there is an explicit linkage. * Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar. * Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
2020-12-31 12:45:56 +08:00
// CHECK-LABEL: define{{.*}} void @_ZN16testNullReceiver5test2EP1C(
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_NONTRIVIAL]], align 8
[Clang/Test]: Rename enable_noundef_analysis to disable-noundef-analysis and turn it off by default Turning on `enable_noundef_analysis` flag allows better codegen by removing freeze instructions. I modified clang by renaming `enable_noundef_analysis` flag to `disable-noundef-analysis` and turning it off by default. Test updates are made as a separate patch: D108453 Reviewed By: eugenis Differential Revision: https://reviews.llvm.org/D105169
2022-01-16 17:53:11 +08:00
// CHECK: call void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*, i8*, %[[STRUCT_NONTRIVIAL]]*)*)({{.*}}, %[[STRUCT_NONTRIVIAL]]* noundef %[[AGG_TMP]])
[IRGen] Do not overwrite existing attributes in CGCall. When adding new attributes, existing attributes are dropped. While this appears to be a longstanding issue, this was highlighted by D105169 which dropped a lot of attributes due to adding the new noundef attribute. Ahmed Bougacha (@ab) tracked down the issue and provided the fix in CGCall.cpp. I bundled it up and updated the tests.
2022-01-20 21:45:19 +08:00
// CHECK-NEXT: call noundef %[[STRUCT_NONTRIVIAL]]* @_ZN10NonTrivialD1Ev(%[[STRUCT_NONTRIVIAL]]* noundef nonnull align 8 dereferenceable(8) %[[AGG_TMP]])
[CodeGen][ObjC] Destroy callee-destroyed arguments in the caller function when the receiver is nil Callee-destroyed arguments to a method have to be destroyed in the caller function when the receiver is nil as the method doesn't get executed. This fixes PR48207. rdar://71808391 Differential Revision: https://reviews.llvm.org/D93273
2020-12-29 03:52:27 +08:00
void test2(C *c) {
[c passNonTrivial:NonTrivial()];
}
}