Author: hahnfeld Date: Fri Apr 20 06:04:54 2018 New Revision: 330426 URL: http://llvm.org/viewvc/llvm-project?rev=330426&view=rev Log: [CUDA] Document recent changes
* Finding installations via ptxas binary * Relocatable device code Differential Revision: https://reviews.llvm.org/D45449 Modified: cfe/trunk/docs/ReleaseNotes.rst cfe/trunk/include/clang/Driver/Options.td Modified: cfe/trunk/docs/ReleaseNotes.rst URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/ReleaseNotes.rst?rev=330426&r1=330425&r2=330426&view=diff ============================================================================== --- cfe/trunk/docs/ReleaseNotes.rst (original) +++ cfe/trunk/docs/ReleaseNotes.rst Fri Apr 20 06:04:54 2018 @@ -163,6 +163,18 @@ OpenMP Support in Clang - ... +CUDA Support in Clang +--------------------- + +- Clang will now try to locate the CUDA installation next to :program:`ptxas` + in the `PATH` environment variable. This behavior can be turned off by passing + the new flag `--cuda-path-ignore-env`. + +- Clang now supports generating object files with relocatable device code. This + feature needs to be enabled with `-fcuda-rdc` and my result in performance + penalties compared to whole program compilation. Please note that NVIDIA's + :program:`nvcc` must be used for linking. + Internal API Changes -------------------- Modified: cfe/trunk/include/clang/Driver/Options.td URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=330426&r1=330425&r2=330426&view=diff ============================================================================== --- cfe/trunk/include/clang/Driver/Options.td (original) +++ cfe/trunk/include/clang/Driver/Options.td Fri Apr 20 06:04:54 2018 @@ -573,7 +573,7 @@ def fno_cuda_flush_denormals_to_zero : F def fcuda_approx_transcendentals : Flag<["-"], "fcuda-approx-transcendentals">, Flags<[CC1Option]>, HelpText<"Use approximate transcendental functions">; def fno_cuda_approx_transcendentals : Flag<["-"], "fno-cuda-approx-transcendentals">; -def fcuda_rdc : Flag<["-"], "fcuda-rdc">, Flags<[CC1Option, HelpHidden]>, +def fcuda_rdc : Flag<["-"], "fcuda-rdc">, Flags<[CC1Option]>, HelpText<"Generate relocatable device code, also known as separate compilation mode.">; def fno_cuda_rdc : Flag<["-"], "fno-cuda-rdc">; def dA : Flag<["-"], "dA">, Group<d_Group>; _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
