Add a profile for ICC-2022.

.upstream-tests/test/CMakeLists.txt

@@ -43,6 +43,13 @@ if (NOT MSVC)
      --compiler-options=-Wextra")
 endif()
 
+# Intel OneAPI compiler has fast math enabled by default which breaks almost all floating point tests
+if (${CMAKE_CXX_COMPILER_ID} STREQUAL "IntelLLVM")
+  set(LIBCUDACXX_TEST_COMPILER_FLAGS
+    "${LIBCUDACXX_TEST_COMPILER_FLAGS} \
+    --compiler-options=-fno-fast-math")
+endif()
+
 if (${CMAKE_CUDA_COMPILER_ID} STREQUAL "NVIDIA")
   set(LIBCUDACXX_TEST_COMPILER_FLAGS
     "${LIBCUDACXX_TEST_COMPILER_FLAGS} \

environments/linux/docker/compose.yml

@@ -72,6 +72,20 @@ services:
 
 ## Configured images ##
 ### Ubuntu 22.04 images:
+  icc-2022:
+    image: "libcudacxx/icc-2022"
+    profiles: ["icc-2022", "all", "base"]
+    tty: true
+    build:
+      context: ../../../
+      dockerfile: environments/linux/docker/icc.base.Dockerfile
+      target: libcudacxx-configured
+      args:
+        ICC_TOOLKIT_VER: "2022.2.1"
+        HOST_CXX: "icpx"
+        BUILDKIT_INLINE_CACHE: "1"
+        ROOT_IMAGE: "nvcr.io/nvidia/cuda:12.1.0-devel-ubuntu22.04"
+    deploy: *deploy-template
 
   gcc-11:
     extends:

environments/linux/docker/icc.base.Dockerfile

@@ -0,0 +1,95 @@
+# Copyright (c) 2018-2023 NVIDIA Corporation
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+# Released under the Apache License v2.0 with LLVM Exceptions.
+# See https://llvm.org/LICENSE.txt for license information.
+
+ARG ROOT_IMAGE
+
+FROM ${ROOT_IMAGE} AS devenv
+
+ARG COMPILERS="gcc clang"
+ARG ICC_TOOLKIT_VER="latest"
+ARG CMAKE_VER=3.23.1
+ARG CMAKE_URL=https://github.com/Kitware/CMake/releases/download/v${CMAKE_VER}/cmake-${CMAKE_VER}-Linux-x86_64.sh
+
+# `-y` answers yes to any interactive prompts.
+# `-qq` because apt is noisy
+ARG APT_GET="apt-get -y -qq"
+
+ENV TZ=US/Pacific
+ENV DEBIAN_FRONTEND=noninteractive
+# apt-key complains about non-interactive usage.
+ENV APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1
+
+SHELL ["/usr/bin/env", "bash", "-c"]
+
+ADD ${CMAKE_URL} /tmp/cmake.sh
+
+# Install baseline development tools
+RUN function comment() { :; }; \
+    comment "Sources for gcc"; \
+    source /etc/os-release; \
+    ${APT_GET} update; \
+    comment "Install basic build tools"; \
+    ${APT_GET} --no-install-recommends install apt-utils curl wget git zip unzip tar \
+        sudo make software-properties-common ninja-build ccache pkg-config \
+        python3 python3-wheel python3-pip; \
+    comment "Install GCC and Clang"; \
+    # Unattended installation hack
+    ${APT_GET} install gcc g++ ${COMPILERS}; \
+    comment "Install CMake"; \
+    sh /tmp/cmake.sh --skip-license --prefix=/usr; \
+    comment "Install Python utils"; \
+    update-alternatives --quiet --install /usr/bin/python python $(which python3) 3; \
+    update-alternatives --quiet --set python $(which python3); \
+    python3 -m pip install setuptools wheel; \
+    python3 -m pip install lit; \
+    rm -rf /var/lib/apt/lists/*
+
+# Snag Intel stuff
+RUN wget -O- https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS.PUB | \
+    gpg --dearmor | sudo tee /usr/share/keyrings/oneapi-archive-keyring.gpg > /dev/null; \
+    echo "deb [signed-by=/usr/share/keyrings/oneapi-archive-keyring.gpg] https://apt.repos.intel.com/oneapi all main" | \
+    sudo tee /etc/apt/sources.list.d/oneAPI.list; \
+    ${APT_GET} update; ${APT_GET} install intel-dpcpp-cpp-compiler-${ICC_TOOLKIT_VER};
+
+ENV PATH="$PATH:/opt/intel/oneapi/compiler/${ICC_TOOLKIT_VER}/linux/bin"
+
+# Assemble libcudacxx specific bits
+
+FROM devenv AS libcudacxx-configured
+
+# Default path according to CUDA Docker image, overridable if the image requires it
+ARG CUDACXX_PATH=/usr/local/cuda/bin/nvcc
+
+ARG HOST_CXX=gcc
+ARG CXX_DIALECT=11
+
+# Attempt to load env from cccl/cuda
+ARG TEST_WITH_NVRTC=OFF
+
+# Docker on Windows can't follow symlinks???
+ADD .                                        /libcudacxx
+ADD ./include/cuda/std/detail/libcxx/include /libcudacxx/libcxx/include
+ADD ./.upstream-tests/test                   /libcudacxx/test
+ADD ./.upstream-tests/utils                  /libcudacxx/utils
+
+ENV CUDAFLAGS="-allow-unsupported-compiler"
+
+RUN cmake -S /libcudacxx -B /build \
+          -G Ninja \
+          -DLIBCUDACXX_ENABLE_STATIC_LIBRARY=OFF \
+          -DLIBCUDACXX_ENABLE_LIBCUDACXX_TESTS=ON \
+          -DLIBCUDACXX_ENABLE_LIBCXX_TESTS=OFF \
+          -DLIBCUDACXX_TEST_COMPILER_FLAGS="-allow-unsupported-compiler" \
+          -DLIBCUDACXX_TEST_WITH_NVRTC=${TEST_WITH_NVRTC} \
+          -DLIBCUDACXX_TEST_STANDARD_VER=c++${CXX_DIALECT} \
+          -DLIBCXX_ENABLE_FILESYSTEM=OFF \
+          -DCMAKE_CXX_COMPILER=${HOST_CXX} \
+          -DCMAKE_CUDA_COMPILER=${CUDACXX_PATH} \
+          -DCMAKE_CUDA_FLAGS="-allow-unsupported-compiler"
+
+RUN ninja -C /build libcudacxx_tu_tests && ninja -C /build clean
+# RUN ninja -C /build cxx
+
+ENV LIBCUDACXX_SITE_CONFIG=/build/test/lit.site.cfg

include/cuda/std/detail/libcxx/include/__config

@@ -648,8 +648,8 @@ typedef __char32_t char32_t;
 #define _LIBCUDACXX_HAS_VIRTUAL_DESTRUCTOR(...) __has_virtual_destructor(__VA_ARGS__)
 #endif
 
-#if __check_builtin(is_literal)
-#define _LIBCUDACXX_IS_LITERAL(...) __is_literal(__VA_ARGS__)
+#if __check_builtin(is_literal_type)
+#define _LIBCUDACXX_IS_LITERAL(...) __is_literal_type(__VA_ARGS__)
 #endif
 
 #if !defined(_LIBCUDACXX_HAS_NO_ASAN) && !__has_feature(address_sanitizer)
@@ -682,6 +682,10 @@ typedef __char32_t char32_t;
 #define _LIBCUDACXX_ADDRESSOF(...) __builtin_addressof(__VA_ARGS__)
 #endif
 
+#if __check_builtin(decay)
+#define _LIBCUDACXX_DECAY(...) __decay(__VA_ARGS__)
+#endif
+
 #if __check_builtin(is_array)
 #define _LIBCUDACXX_IS_ARRAY(...) __is_array(__VA_ARGS__)
 #endif
@@ -2034,6 +2038,20 @@ extern "C" _LIBCUDACXX_FUNC_VIS void __sanitizer_annotate_contiguous_container(
 #  define _LIBCUDACXX_CPO_ACCESSIBILITY _LIBCUDACXX_INLINE_VAR
 #endif
 
+#if defined(__INTEL_LLVM_COMPILER)
+#  define _LIBCUDACXX_USE_DECAY_FALLBACK
+#  define _LIBCUDACXX_USE_MAKE_SIGNED_FALLBACK
+#  define _LIBCUDACXX_USE_MAKE_UNSIGNED_FALLBACK
+#  define _LIBCUDACXX_USE_REMOVE_ALL_EXTENTS_FALLBACK
+#  define _LIBCUDACXX_USE_REMOVE_CONST_FALLBACK
+#  define _LIBCUDACXX_USE_REMOVE_CV_FALLBACK
+#  define _LIBCUDACXX_USE_REMOVE_CVREF_FALLBACK
+#  define _LIBCUDACXX_USE_REMOVE_EXTENT_FALLBACK
+#  define _LIBCUDACXX_USE_REMOVE_POINTER_FALLBACK
+#  define _LIBCUDACXX_USE_REMOVE_VOLATILE_FALLBACK
+#  define _LIBCUDACXX_USE_REMOVE_REFERENCE_T_FALLBACK
+#endif // __INTEL_LLVM_COMPILER
+
 #endif // __cplusplus
 
 #endif // _LIBCUDACXX_CONFIG

include/cuda/std/detail/libcxx/include/__type_traits/decay.h

@@ -38,12 +38,12 @@ struct decay {
 #else
 
 template <class _Up, bool>
-struct __decay {
+struct __decay_impl {
     typedef _LIBCUDACXX_NODEBUG_TYPE __remove_cv_t<_Up> type;
 };
 
 template <class _Up>
-struct __decay<_Up, true> {
+struct __decay_impl<_Up, true> {
 public:
     typedef _LIBCUDACXX_NODEBUG_TYPE __conditional_t
                      <
@@ -64,7 +64,7 @@ struct _LIBCUDACXX_TEMPLATE_VIS decay
 private:
     typedef _LIBCUDACXX_NODEBUG_TYPE __libcpp_remove_reference_t<_Tp> _Up;
 public:
-  typedef _LIBCUDACXX_NODEBUG_TYPE typename __decay<_Up, __libcpp_is_referenceable<_Up>::value>::type type;
+  typedef _LIBCUDACXX_NODEBUG_TYPE typename __decay_impl<_Up, __libcpp_is_referenceable<_Up>::value>::type type;
 };
 #endif // defined(_LIBCUDACXX_DECAY) && !defined(_LIBCUDACXX_USE_DECAY_FALLBACK)
 

libcxx/CMakeLists.txt

@@ -612,6 +612,9 @@ function(cxx_add_warning_flags target)
       -Wno-literal-suffix
       -Wno-c++14-compat
       -Wno-noexcept-type)
+  elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "IntelLLVM")
+    target_add_compile_flags_if_supported(${target} PRIVATE
+      -fno-fast-math)
   endif()
   if (LIBCXX_ENABLE_WERROR)
     target_add_compile_flags_if_supported(${target} PRIVATE -Werror)