[clang] [CMake] Add VE cache file (PR #65921)

[via cfe-commits]

llvmbot wrote:

@llvm/pr-subscribers-clang

<details>
<summary>Changes</summary>

Add VE cache file for the ease of compiling.
--
Full diff: https://github.com/llvm/llvm-project/pull/65921.diff

1 Files Affected:

- (added) clang/cmake/caches/VectorEngine.cmake (+124) 


<pre>
diff --git a/clang/cmake/caches/VectorEngine.cmake b/clang/cmake/caches/VectorEngine.cmake
new file mode 100644
index 000000000000000..100225dbd4ca665
--- /dev/null
+++ b/clang/cmake/caches/VectorEngine.cmake
@@ -0,0 +1,124 @@
+# This file sets up a CMakeCache for the simple VE build.
+#
+# Configure:
+#   cmake -G Ninja -DCMAKE_BUILD_TYPE=Release
+#       -C <llvm_src_root>/clang/cmake/caches/VectorEngine.cmake
+#       <llvm_src_root>/llvm-project/llvm
+# Build:
+#   ninja
+#
+
+# Disable TERMINFO, ZLIB, and ZSTD for VE since there is no pre-compiled
+# libraries.
+set(LLVM_ENABLE_TERMINFO OFF CACHE BOOL "")
+set(LLVM_ENABLE_ZLIB OFF CACHE BOOL "")
+set(LLVM_ENABLE_ZSTD OFF CACHE BOOL "")
+
+# Enable per-target runtimes directory
+set(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR On CACHE BOOL "")
+
+# The lld is not supported for VE yet.
+set(LLVM_ENABLE_PROJECTS "clang;clang-tools-extra" CACHE STRING "")
+set(LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind;openmp" CACHE STRING "")
+
+# Compile for X86 and VE
+set(LLVM_TARGETS_TO_BUILD "X86;VE" CACHE STRING "")
+
+# Not use default here to use RUNTIMES_x86_64-unknown-linux-gnu_* variables.
+set(LLVM_BUILTIN_TARGETS "x86_64-unknown-linux-gnu;ve-unknown-linux-gnu" CACHE STRING "")
+set(LLVM_RUNTIME_TARGETS "x86_64-unknown-linux-gnu;ve-unknown-linux-gnu" CACHE STRING "")
+
+# For the case of X86, we don't want to test compiler-rt for x86,
+# so disable them as much as possible.
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_BUILTINS ON CACHE BOOL "")
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_CRT OFF CACHE BOOL "")
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "")
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_XRAY OFF CACHE BOOL "")
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_LIBFUZZER OFF CACHE BOOL "")
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_PROFILE OFF CACHE BOOL "")
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_MEMPROF OFF CACHE BOOL "")
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_ORC OFF CACHE BOOL "")
+set(RUNTIMES_x86_64-unknown-linux-gnu_COMPILER_RT_BUILD_GWP_ASAN OFF CACHE BOOL "")
+
+# VE supports builtins, crt, and profile only.
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_BUILTINS ON CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_CRT ON CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_XRAY OFF CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_LIBFUZZER OFF CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_PROFILE ON CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_MEMPROF OFF CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_ORC OFF CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_BUILD_GWP_ASAN OFF CACHE BOOL "")
+
+# VE uses builtins from Compiler-RT.
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_USE_BUILTINS_LIBRARY TRUE CACHE BOOL "")
+
+# VE uses libunwind and Compiler-RT from libcxxabi.
+set(RUNTIMES_ve-unknown-linux-gnu_LIBCXXABI_USE_LLVM_UNWINDER TRUE CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_LIBCXXABI_USE_COMPILER_RT TRUE CACHE BOOL "")
+
+# VE uses Compiler-RT from libcxx.
+set(RUNTIMES_ve-unknown-linux-gnu_LIBCXX_USE_COMPILER_RT TRUE CACHE BOOL "")
+
+# Pretended standalone build for OpenMP since OpenMP doesn't support
+# LLVM_ENABLE_PER_TARGET_RUNTIME_DIR yet.
+#   - Use OPENMP_STANDALONE_BUILD
+#   - Define OPENMP_LIBDIR_SUFFIX to pretend per-target openmp directory
+#   - Define OPENMP_LLVM_TOOLS_DIR for test
+set(RUNTIMES_x86_64-unknown-linux-gnu_OPENMP_STANDALONE_BUILD ON CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_OPENMP_STANDALONE_BUILD ON CACHE BOOL "")
+
+# Specify LIBDIR_SUFFIX for OpenMP to install them at following directories.
+#   install/lib/clang/${VERSION}/lib/x86_64-unknown-linux-gnu
+#   install/lib/clang/${VERSION}/lib/ve-unknown-linux-gnu
+set(RUNTIMES_x86_64-unknown-linux-gnu_OPENMP_LIBDIR_SUFFIX "/x86_64-unknown-linux-gnu" CACHE STRING "")
+set(RUNTIMES_ve-unknown-linux-gnu_OPENMP_LIBDIR_SUFFIX "/ve-unknown-linux-gnu" CACHE STRING "")
+
+# Specify OPENMP_LLVM_TOOLS_DIR for test
+set(RUNTIMES_x86_64-unknown-linux-gnu_OPENMP_LLVM_TOOLS_DIR "${CMAKE_BINARY_DIR}/bin" CACHE STRING "")
+set(RUNTIMES_ve-unknown-linux-gnu_OPENMP_LLVM_TOOLS_DIR "${CMAKE_BINARY_DIR}/bin" CACHE STRING "")
+
+# VE doesn't support libomptarget.  Disable it for x86_64 also.
+set(RUNTIMES_x86_64-unknown-linux-gnu_OPENMP_ENABLE_LIBOMPTARGET FALSE CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_OPENMP_ENABLE_LIBOMPTARGET FALSE CACHE BOOL "")
+
+# VE requires -lrt flag for shm_open.
+set(RUNTIMES_ve-unknown-linux-gnu_LIBOMP_HAVE_SHM_OPEN_WITH_LRT TRUE CACHE BOOL "")
+
+# Compiler flags for testing
+set(RUNTIMES_ve-unknown-linux-gnu_COMPILER_RT_TEST_COMPILER_CFLAGS "--target=ve-unknown-linux-gnu" CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_LIBCXXABI_TEST_COMPILER_CFLAGS "--target=ve-unknown-linux-gnu" CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_LIBCXX_TEST_COMPILER_CFLAGS "--target=ve-unknown-linux-gnu" CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_LIBUNWIND_TEST_COMPILER_CFLAGS "--target=ve-unknown-linux-gnu" CACHE BOOL "")
+set(RUNTIMES_ve-unknown-linux-gnu_OPENMP_TEST_OPENMP_FLAGS "--target=ve-unknown-linux-gnu -fopenmp -pthread -lrt -ldl -Wl,-rpath,${CMAKE_BINARY_DIR}/lib/ve-unknown-linux-gnu" CACHE BOOL "")
+
+# setup toolchain
+set(LLVM_INSTALL_TOOLCHAIN_ONLY ON CACHE BOOL "")
+set(LLVM_TOOLCHAIN_TOOLS
+  dsymutil
+  llc
+  llvm-ar
+  llvm-cxxfilt
+  llvm-cov
+  llvm-dwarfdump
+  llvm-link
+  llvm-nm
+  llvm-objdump
+  llvm-profdata
+  llvm-ranlib
+  llvm-readelf
+  llvm-readobj
+  llvm-size
+  llvm-symbolizer
+  opt
+  CACHE STRING "")
+
+set(LLVM_DISTRIBUTION_COMPONENTS
+  clang
+  clang-format
+  clang-resource-headers
+  builtins
+  runtimes
+  ${LLVM_TOOLCHAIN_TOOLS}
+  CACHE STRING "")
</pre>

</details>

https://github.com/llvm/llvm-project/pull/65921