Author: Raul Tambre Date: 2020-04-17T12:56:13-07:00 New Revision: 8e20516540444618ad32dd11e835c05804053697
URL: https://github.com/llvm/llvm-project/commit/8e20516540444618ad32dd11e835c05804053697 DIFF: https://github.com/llvm/llvm-project/commit/8e20516540444618ad32dd11e835c05804053697.diff LOG: [CUDA] Define __CUDACC__ before standard library headers libstdc++ since version 7 when GNU extensions are enabled (e.g. -std=gnu++11) use it to avoid defining overloads using `__float128`. This fixes compiling with GNU extensions failing due to `__float128` being used. Discovered at https://gitlab.kitware.com/cmake/cmake/-/merge_requests/4442#note_737136. Differential Revision: https://reviews.llvm.org/D78392 Added: Modified: clang/lib/Headers/__clang_cuda_runtime_wrapper.h Removed: ################################################################################ diff --git a/clang/lib/Headers/__clang_cuda_runtime_wrapper.h b/clang/lib/Headers/__clang_cuda_runtime_wrapper.h index 63404c9bdeb5..f43ed55de489 100644 --- a/clang/lib/Headers/__clang_cuda_runtime_wrapper.h +++ b/clang/lib/Headers/__clang_cuda_runtime_wrapper.h @@ -31,11 +31,17 @@ // Include some forward declares that must come before cmath. #include <__clang_cuda_math_forward_declares.h> +// Define __CUDACC__ early as libstdc++ standard headers with GNU extensions +// enabled depend on it to avoid using __float128, which is unsupported in +// CUDA. +#define __CUDACC__ + // Include some standard headers to avoid CUDA headers including them // while some required macros (like __THROW) are in a weird state. #include <cmath> #include <cstdlib> #include <stdlib.h> +#undef __CUDACC__ // Preserve common macros that will be changed below by us or by CUDA // headers. _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits