Adds _interlockedbittestand{set,reset}64_{acq,rel,nf} support for
AArch64
For long enough _BitInt types we use different types for memory, storing-loading and other operations. Makes sure it is correct for mixed sign __builtin_mul_overflow cases. Using pointer element type as a result type doesn't work, because it will be "in-memory" type which is usually bigger than "operations" type and that caused crashes because clang was trying to emit trunc to a bigger type. Fixes https://github.com/llvm/llvm-project/issues/144771
ArrayRef has a constructor that accepts std::nullopt. This constructor dates back to the days when we still had llvm::Optional. Since the use of std::nullopt outside the context of std::optional is kind of abuse and not intuitive to new comers, I would like to move away from the constructor and eventually remove it. This patch takes care of the clang side of the migration.
These are identified by misc-include-cleaner. I've filtered out those that break builds. Also, I'm staying away from llvm-config.h, config.h, and Compiler.h, which likely cause platform- or compiler-specific build failures.
This extends https://github.com/llvm/llvm-project/pull/138577 to more UBSan checks, by changing SanitizerDebugLocation (formerly SanitizerScope) to add annotations if enabled for the specified ordinals. Annotations will use the ordinal name if there is exactly one ordinal specified in the SanitizerDebugLocation; otherwise, it will use the handler name. Updates the tests from https://github.com/llvm/llvm-project/pull/141814. --------- Co-authored-by: Vitaly Buka <vitalybuka@google.com>
With pointer authentication it becomes non-trivial to correctly load the vtable pointer of a polymorphic object. __builtin_get_vtable_pointer is a function that performs the load and performs the appropriate authentication operations if necessary.
The patch introduce __builtin_spirv_generic_cast_to_ptr_explicit which is lowered to the llvm.spv.generic.cast.to.ptr.explicit intrinsic. The SPIR-V builtins are now split into 3 differents file: BuiltinsSPIRVCore.td, BuiltinsSPIRVVK.td for Vulkan specific builtins, BuiltinsSPIRVCL.td for OpenCL specific builtins and BuiltinsSPIRVCommon.td for common ones. The patch also introduces a new header defining its SPIR-V friendly equivalent (__spirv_GenericCastToPtrExplicit_ToGlobal, __spirv_GenericCastToPtrExplicit_ToLocal and __spirv_GenericCastToPtrExplicit_ToPrivate). The functions are declared as aliases to the new builtin allowing C-like languages to have a definition to rely on as well as gaining proper front-end diagnostics. The motivation for the header is to provide a stable binding for applications or library (such as SYCL) and allows non SPIR-V targets to provide an implementation (via libclc or similar to how it is done for gpuintrin.h).
This reverts commit 894a0dd57f81211f9e431d9e84f2856d34f46993 with tests fixed. This patch is part of a stack that teaches Clang to generate Key Instructions metadata for C and C++. RFC: https://discourse.llvm.org/t/rfc-improving-is-stmt-placement-for-better-interactive-debugging/82668 The feature is only functional in LLVM if LLVM is built with CMake flag LLVM_EXPERIMENTAL_KEY_INSTRUCTIONs. Eventually that flag will be removed.
This reverts commit b14799e9e0ed2cae7cbce45c413233336b151fea. Breaks downstream bots.
This patch is part of a stack that teaches Clang to generate Key Instructions metadata for C and C++. RFC: https://discourse.llvm.org/t/rfc-improving-is-stmt-placement-for-better-interactive-debugging/82668 The feature is only functional in LLVM if LLVM is built with CMake flag LLVM_EXPERIMENTAL_KEY_INSTRUCTIONs. Eventually that flag will be removed.