import gollvm: add support for __atomic_load_1 and __atomic_store_1 b…

…uiltins

2b198c8766fdd79a602f23edc36fea4243b6a382
2022-02-14

AUTHORS

@@ -0,0 +1,11 @@
+# This is the official list of gollvm authors for copyright
+# purposes.  This file is distinct from the CONTRIBUTORS files.
+# See the latter for an explanation.
+
+# Names should be added to this file as
+#	Name or Organization <email address>
+# The email address is not required for organizations.
+
+# Please keep the list sorted.
+
+Google Inc.

CMakeLists.txt

@@ -0,0 +1,140 @@
+
+# Copyright 2018 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# Notes:
+#
+# The code in gofrontend depends on functions from GMP, MPC, and MPFR;
+# these libraries are currently handled via the cmake "ExternalProject"
+# utility.
+#
+
+include(ExternalProject)
+include(ProcessorCount)
+include(LLVMExternalProjectUtils)
+
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")
+set(GOLLVM_USE_SPLIT_STACK ON CACHE BOOL "use split stack by default")
+set(GOLLVM_DEFAULT_LINKER gold CACHE STRING "default linker for Go links")
+
+include(CmakeUtils)
+include(AddGollvm)
+
+# So that we can issue "make -jN" cmds in externalproject_add
+processorcount(PROCESSOR_COUNT)
+
+set(EXTINSTALLDIR ${CMAKE_CURRENT_BINARY_DIR}/external/install)
+set(EXTLIBDIR "${EXTINSTALLDIR}/lib")
+set(EXTINCLUDEDIR "${EXTINSTALLDIR}/include")
+set(EXTCPPFLAGS "CFLAGS=-I${EXTINCLUDEDIR}")
+if(NOT "${CMAKE_SYSROOT}" STREQUAL "")
+  string(APPEND EXTCPPFLAGS " --sysroot=${CMAKE_SYSROOT}")
+endif()
+if(LLVM_ENABLE_PIC)
+  string(APPEND EXTCPPFLAGS " -fPIC -DPIC")
+endif()
+set(EXTLDFLAGS "LDFLAGS=-L${EXTLIBDIR}")
+set(EXTCC "CC=${CMAKE_C_COMPILER}" "CXX=${CMAKE_CXX_COMPILER}")
+
+set(gollvm_binroot "${CMAKE_CURRENT_BINARY_DIR}")
+
+externalproject_add(libgmp
+  URL https://gmplib.org/download/gmp/gmp-6.2.0.tar.bz2 https://mirrors.kernel.org/gnu/gmp/gmp-6.2.0.tar.bz2
+  URL_MD5 c24161e0dd44cae78cd5f67193492a21
+  DOWNLOAD_DIR ${CMAKE_CURRENT_BINARY_DIR}/external-downloads
+  BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/gmp-build
+  SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/gmp
+  CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=${EXTINSTALLDIR} ${EXTCPPFLAGS} ${EXTLDFLAGS} ${EXTCC}
+  BUILD_COMMAND make -j${PROCESSOR_COUNT} install
+  LOG_CONFIGURE 1
+  LOG_BUILD 1
+  LOG_INSTALL 1
+  )
+
+externalproject_add(libmpfr
+  DEPENDS libgmp
+  URL https://www.mpfr.org/mpfr-current/mpfr-4.1.0.tar.bz2 https://mirrors.kernel.org/gnu/mpfr/mpfr-4.1.0.tar.bz2
+  URL_MD5 44b892bc5a45bafb4294d134e13aad1d
+  DOWNLOAD_DIR ${CMAKE_CURRENT_BINARY_DIR}/external-downloads
+  BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/mpfr
+  SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/mpfr
+  CONFIGURE_COMMAND <SOURCE_DIR>/configure --with-gmp=${CMAKE_CURRENT_BINARY_DIR}/external/gmp --prefix=${EXTINSTALLDIR} ${EXTCPPFLAGS} ${EXTLDFLAGS} ${EXTCC}
+  BUILD_COMMAND make -j${PROCESSOR_COUNT} install
+  LOG_CONFIGURE 1
+  LOG_BUILD 1
+  LOG_INSTALL 1
+  )
+
+externalproject_add(libmpc
+  DEPENDS libgmp libmpfr
+  URL https://ftp.gnu.org/gnu/mpc/mpc-1.2.0.tar.gz https://mirrors.kernel.org/gnu/mpc/mpc-1.2.0.tar.gz
+  URL_MD5 2f1ce56ac775f2be090863f364931a03
+  DOWNLOAD_DIR ${CMAKE_CURRENT_BINARY_DIR}/external-downloads
+  BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/mpc
+  SOURCE_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/mpc
+  PREFIX ${EXTINSTALLDIR}
+  CONFIGURE_COMMAND <SOURCE_DIR>/configure --with-gmp=${CMAKE_CURRENT_BINARY_DIR}/external/gmp --with-mpfr=${CMAKE_CURRENT_BINARY_DIR}/external/mpfr --prefix=${EXTINSTALLDIR} ${EXTCPPFLAGS} ${EXTLDFLAGS} ${EXTCC}
+  BUILD_COMMAND make -j${PROCESSOR_COUNT} install
+  LOG_CONFIGURE 1
+  LOG_BUILD 1
+  LOG_INSTALL 1
+  )
+
+# Top level targets for building, installing
+add_custom_target(gollvm ALL)
+add_custom_target(install-gollvm)
+
+# In most use cases, we want to force a rebuild of all objects built
+# from Go source if the compiler changes.
+set(gocdep llvm-goc llvm-goc-token)
+
+# For compiler developers, however, the dependence this can be a
+# hassle-- when hacking on the compiler, it is annoying to have each
+# tiny change force a library rebuild, so the DISABLE_LIBGO_GOC_DEP can
+# be set as an (unsafe) escape hatch to break the dependence from golibs
+# to compiler. In this case we still need to insure that the compiler
+# exists, but we don't care whether it is up to date or not.
+if (DISABLE_LIBGO_GOC_DEP)
+  set(gocdep llvm-goc-token)
+endif()
+
+# Root of gollvm source code.
+set(GOLLVM_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+
+# Location of gofrontend source code.
+set(GOFRONTEND_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/gofrontend/go)
+
+# Location of bridge source code.
+set(BRIDGE_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/bridge)
+
+# Location of gollvm specific passes source code.
+set(PASSES_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/passes)
+
+# Location of driver utilities source code.
+set(DRIVER_UTILS_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/driver)
+
+# Subdirectory for the middle layer that translates Backend method
+# calls into LLVM IR.
+add_subdirectory(bridge)
+
+# Subdirectory for gollvm specific backend passes.
+add_subdirectory(passes)
+
+# Subdirectory for compiler driver utilities library.
+add_subdirectory(driver)
+
+# Subdirectory for compiler driver executable.
+add_subdirectory(driver-main)
+
+# Go standard library
+add_subdirectory(libgo)
+
+# Go tools (go, gofmt, etc)
+add_subdirectory(gotools)
+
+# Subdir for unit tests
+add_subdirectory(unittests)
+
+# Top-level check target for gollvm
+add_custom_target(check-gollvm DEPENDS check-libgo check-gotools)

CONTRIBUTORS

@@ -0,0 +1,36 @@
+# This is the official list of people who can contribute
+# (and typically have contributed) code to the Go frontend
+# repository.  The AUTHORS file lists the copyright holders; this file
+# lists people.  For example, Google employees are listed here
+# but not in AUTHORS, because Google holds the copyright.
+#
+# The submission process automatically checks to make sure
+# that people submitting code are listed in this file (by email address).
+#
+# Names should be added to this file only after verifying that
+# the individual or the individual's organization has agreed to
+# the appropriate Contributor License Agreement, found here:
+#
+#     http://code.google.com/legal/individual-cla-v1.0.html
+#     http://code.google.com/legal/corporate-cla-v1.0.html
+#
+# The agreement for individuals can be filled out on the web.
+#
+# When adding J Random Contributor's name to this file,
+# either J's name or J's organization's name should be
+# added to the AUTHORS file, depending on whether the
+# individual or corporate CLA was used.
+
+# Names should be added to this file like so:
+#     Name <email address>
+
+# Please keep the list sorted.
+
+Aaqa Ishtyaq <[email protected]>
+Cherry Mui <[email protected]>
+Eric Fang <[email protected]>
+Ian Lance Taylor <[email protected]>
+Ivan Serdyuk <[email protected]>
+Than McIntosh <[email protected]>
+Ting Yuan <[email protected]>
+Xiangdong Ji <[email protected]>