[ORC-RT] Initial check-in for a new, top-level ORC runtime project.

llvm/CMakeLists.txt

@@ -155,7 +155,7 @@ endif()
 # As we migrate runtimes to using the bootstrapping build, the set of default runtimes
 # should grow as we remove those runtimes from LLVM_ENABLE_PROJECTS above.
 set(LLVM_DEFAULT_RUNTIMES "libcxx;libcxxabi;libunwind")
-set(LLVM_SUPPORTED_RUNTIMES "libc;libunwind;libcxxabi;pstl;libcxx;compiler-rt;openmp;llvm-libgcc;offload")
+set(LLVM_SUPPORTED_RUNTIMES "libc;libunwind;libcxxabi;pstl;libcxx;compiler-rt;openmp;llvm-libgcc;offload;orc-rt")
 set(LLVM_ENABLE_RUNTIMES "" CACHE STRING
   "Semicolon-separated list of runtimes to build, or \"all\" (${LLVM_DEFAULT_RUNTIMES}). Supported runtimes are ${LLVM_SUPPORTED_RUNTIMES}.")
 if(LLVM_ENABLE_RUNTIMES STREQUAL "all")

llvm/projects/CMakeLists.txt

@@ -9,6 +9,7 @@ foreach(entry ${entries})
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/libcxx) AND
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/libcxxabi) AND
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/libunwind) AND
+       (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/orc-rt) AND
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/test-suite) AND
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/openmp) AND
        (NOT ${entry} STREQUAL ${CMAKE_CURRENT_SOURCE_DIR}/cross-project-tests))
@@ -33,6 +34,7 @@ if(${LLVM_BUILD_RUNTIME})
     add_llvm_external_project(libc)
     add_llvm_external_project(libcxxabi)
     add_llvm_external_project(libcxx)
+    add_llvm_external_project(orc-rt)
   endif()
   if(NOT LLVM_BUILD_EXTERNAL_COMPILER_RT)
     add_llvm_external_project(compiler-rt)

orc-rt/CMakeLists.txt

@@ -0,0 +1,32 @@
+# CMake build for ORC-RT.
+
+#===============================================================================
+# Setup Project
+#===============================================================================
+
+cmake_minimum_required(VERSION 3.20.0)
+
+set(LLVM_COMMON_CMAKE_UTILS ${CMAKE_CURRENT_SOURCE_DIR}/../cmake)
+include(${LLVM_COMMON_CMAKE_UTILS}/Modules/CMakePolicy.cmake
+  NO_POLICY_SCOPE)
+
+project(LibOrcRT LANGUAGES C CXX ASM)
+
+include(GNUInstallDirs)
+
+#===============================================================================
+# Setup CMake Options
+#===============================================================================
+
+set(CMAKE_CXX_STANDARD 17 CACHE STRING "C++ standard to conform to")
+set(CMAKE_CXX_STANDARD_REQUIRED YES)
+set(CMAKE_CXX_EXTENSIONS NO)
+set(CMAKE_FOLDER "orc-rt")
+
+#===============================================================================
+# Setup Source Code
+#===============================================================================
+
+add_subdirectory(include)
+add_subdirectory(lib)
+add_subdirectory(tools)

orc-rt/include/CMakeLists.txt

@@ -0,0 +1,16 @@
+set(files
+    orc-rt-c/orc-rt.h
+)
+
+add_library(orc-rt-headers INTERFACE)
+target_include_directories(orc-rt-headers INTERFACE
+    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
+    $<INSTALL_INTERFACE:include>
+)
+target_sources(orc-rt-headers
+    INTERFACE FILE_SET HEADERS
+    BASE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}
+    FILES ${files}
+)
+install(TARGETS orc-rt-headers
+    FILE_SET HEADERS DESTINATION include)

orc-rt/include/orc-rt-c/orc-rt.h

@@ -0,0 +1,27 @@
+/*===- orc-rt-c/orc-rt.h - Placeholder header for orc-rt ----------*- C -*-===*\
+|*                                                                            *|
+|* Part of the LLVM Project, under the Apache License v2.0 with LLVM          *|
+|* Exceptions.                                                                *|
+|* See https://llvm.org/LICENSE.txt for license information.                  *|
+|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception                    *|
+|*                                                                            *|
+|*===----------------------------------------------------------------------===*|
+|*                                                                            *|
+|* Placeholder header for initial orc-rt checkin                              *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#ifndef ORC_RT_C_ORC_RT_H
+#define ORC_RT_C_ORC_RT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void orc_rt(void);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* ORC_RT_C_ORC_RT_H */

orc-rt/lib/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(executor)

orc-rt/lib/executor/CMakeLists.txt

@@ -0,0 +1,13 @@
+set(files
+  orc-rt-executor.cpp
+  )
+
+add_library(orc-rt-executor STATIC ${files})
+target_link_libraries(orc-rt-executor
+  PUBLIC orc-rt-headers
+  )
+install(TARGETS orc-rt-executor
+  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+          COMPONENT OrcRT_Development
+  PUBLIC_HEADER DESTINATION include COMPONENT OrcRT_Development
+)

orc-rt/lib/executor/orc-rt-executor.cpp

@@ -0,0 +1,3 @@
+#include <stdio.h>
+
+extern "C" void orc_rt(void) { printf("hello, world!\n"); }

orc-rt/tools/CMakeLists.txt

@@ -0,0 +1 @@
+add_subdirectory(orc-executor)

orc-rt/tools/orc-executor/CMakeLists.txt

@@ -0,0 +1,3 @@
+add_executable(orc-executor orc-executor.cpp)
+target_link_libraries(orc-executor PRIVATE orc-rt-executor)
+target_include_directories(orc-executor PRIVATE ../../include)

orc-rt/tools/orc-executor/orc-executor.cpp

@@ -0,0 +1,6 @@
+#include "orc-rt-c/orc-rt.h"
+
+int main(int argc, char *argv[]) {
+  orc_rt();
+  return 0;
+}

runtimes/CMakeLists.txt

@@ -23,7 +23,7 @@ list(INSERT CMAKE_MODULE_PATH 0
 
 # We order libraries to mirror roughly how they are layered, except that compiler-rt can depend
 # on libc++, so we put it after.
-set(LLVM_DEFAULT_RUNTIMES "libc;libunwind;libcxxabi;pstl;libcxx;compiler-rt;openmp;offload")
+set(LLVM_DEFAULT_RUNTIMES "libc;libunwind;libcxxabi;pstl;libcxx;compiler-rt;openmp;offload;orc-rt")
 set(LLVM_SUPPORTED_RUNTIMES "${LLVM_DEFAULT_RUNTIMES};llvm-libgcc")
 set(LLVM_ENABLE_RUNTIMES "" CACHE STRING
   "Semicolon-separated list of runtimes to build, or \"all\" (${LLVM_DEFAULT_RUNTIMES}). Supported runtimes are ${LLVM_SUPPORTED_RUNTIMES}.")