Author: Artem Belevich Date: 2020-01-23T13:17:52-08:00 New Revision: cc14de88da27a8178976972bdc8211c31f7ca9ae
URL: https://github.com/llvm/llvm-project/commit/cc14de88da27a8178976972bdc8211c31f7ca9ae DIFF: https://github.com/llvm/llvm-project/commit/cc14de88da27a8178976972bdc8211c31f7ca9ae.diff LOG: [CUDA] Fix order of memcpy arguments in __shfl_*(<64-bit type>). Wrong argument order resulted in broken shfl ops for 64-bit types. Added: Modified: clang/lib/Headers/__clang_cuda_intrinsics.h Removed: ################################################################################ diff --git a/clang/lib/Headers/__clang_cuda_intrinsics.h b/clang/lib/Headers/__clang_cuda_intrinsics.h index b67461a146fc..c7bff6a9d8fe 100644 --- a/clang/lib/Headers/__clang_cuda_intrinsics.h +++ b/clang/lib/Headers/__clang_cuda_intrinsics.h @@ -45,7 +45,7 @@ _Static_assert(sizeof(__val) == sizeof(__Bits)); \ _Static_assert(sizeof(__Bits) == 2 * sizeof(int)); \ __Bits __tmp; \ - memcpy(&__val, &__tmp, sizeof(__val)); \ + memcpy(&__tmp, &__val, sizeof(__val)); \ __tmp.__a = ::__FnName(__tmp.__a, __offset, __width); \ __tmp.__b = ::__FnName(__tmp.__b, __offset, __width); \ long long __ret; \ @@ -129,7 +129,7 @@ __MAKE_SHUFFLES(__shfl_xor, __nvvm_shfl_bfly_i32, __nvvm_shfl_bfly_f32, 0x1f, _Static_assert(sizeof(__val) == sizeof(__Bits)); \ _Static_assert(sizeof(__Bits) == 2 * sizeof(int)); \ __Bits __tmp; \ - memcpy(&__val, &__tmp, sizeof(__val)); \ + memcpy(&__tmp, &__val, sizeof(__val)); \ __tmp.__a = ::__FnName(__mask, __tmp.__a, __offset, __width); \ __tmp.__b = ::__FnName(__mask, __tmp.__b, __offset, __width); \ long long __ret; \ _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
