Import CXXR runtime source snapshot

CXXR-UPSTREAM.md

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+# CXXR source snapshot
+
+The `cxxr/` directory is an unmodified source snapshot of CXXR's continuation,
+Rho. CXXR was renamed Rho while retaining the project goal of refactoring the R
+interpreter into a compatible, efficient C++ virtual machine.
+
+- Upstream: <https://github.com/rho-devel/rho>
+- Commit: `bf6c652b826cd892e88630eb35f182b614af52b1`
+- Source tree: `b12c08f052d89467122a0deee381f13609ea4e40`
+- Commit date: 2017-06-30
+- Upstream status at that commit: development suspended
+- License: GNU GPL version 2; see `cxxr/COPYING`
+
+The snapshot is kept separate from `code/`, which contains ir's active R source.
+It is reference material for comparing interpreter representation, evaluation,
+promise, pairlist, memory-management, and virtual-machine designs. Nothing in
+the ir build currently compiles or links `cxxr/`.

cxxr/.clang-format

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+---
+BasedOnStyle:  WebKit
+# AccessModifierOffset: -4
+# ConstructorInitializerIndentWidth: 4
+# AlignEscapedNewlinesLeft: false
+# AlignTrailingComments: false
+# AllowAllParametersOfDeclarationOnNextLine: true
+# AllowShortIfStatementsOnASingleLine: false
+# AllowShortLoopsOnASingleLine: false
+AlwaysBreakTemplateDeclarations: true
+# AlwaysBreakBeforeMultilineStrings: false
+# BreakBeforeBinaryOperators: true
+# BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+# BinPackParameters: true
+ColumnLimit:     80
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+# DerivePointerBinding: false
+# ExperimentalAutoDetectBinPacking: false
+# IndentCaseLabels: false
+# MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+# ObjCSpaceBeforeProtocolList: true
+# PenaltyBreakBeforeFirstCallParameter: 19
+# PenaltyBreakComment: 60
+# PenaltyBreakString: 1000
+# PenaltyBreakFirstLessLess: 120
+# PenaltyExcessCharacter: 1000000
+# PenaltyReturnTypeOnItsOwnLine: 60
+# PointerBindsToType: true
+# SpacesBeforeTrailingComments: 1
+# Cpp11BracedListStyle: false
+Standard:        Cpp11
+# IndentWidth:     4
+# TabWidth:        8
+UseTab:          Always
+# BreakBeforeBraces: Stroustrup
+# IndentFunctionDeclarationAfterType: false
+# SpacesInParentheses: false
+# SpacesInAngles:  false
+# SpaceInEmptyParentheses: false
+# SpacesInCStyleCastParentheses: false
+# SpaceAfterControlStatementKeyword: true
+# SpaceBeforeAssignmentOperators: true
+# ContinuationIndentWidth: 4
+...
+

cxxr/.gitignore

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+*.a
+*.d
+*.o
+*.so
+*.ts
+
+/bin
+/include
+/jit
+/library
+/libtool
+
+/confdefs.h
+/conftest*
+/config.log
+/config.status
+/Makeconf
+/Makefile
+/Makefile.bak
+/Makefrag.cc
+/Makefrag.cc_lo
+/Makefrag.cxx
+/Makefrag.m
+
+/doc/manual/R-*.html
+/doc/manual/R-*.html.tmp
+/doc/Makefile
+/doc/NEWS.rds
+/doc/R.1
+/doc/html/Makefile
+/doc/html/index.html
+/doc/html/packages.html
+/doc/manual/Makefile
+/doc/manual/version.texi
+
+/etc/*
+!/etc/*.in
+
+/m4/Makefile
+
+/po/Makefile
+
+/share/Makefile
+
+/src/**/Makedeps
+/src/**/Makefile
+
+/src/extra/sparsehash/.deps/
+/src/extra/sparsehash/autom4te.cache/
+/src/extra/sparsehash/confdefs.h
+/src/extra/sparsehash/config.log
+/src/extra/sparsehash/config.status
+/src/extra/sparsehash/src/sparsehash/internal/sparseconfig.h
+/src/extra/sparsehash/src/stamp-h1
+/src/extra/sparsehash/*test
+/src/extra/sparsehash/libsparsehash.pc
+/src/extra/sparsehash/src/config.h
+/src/extra/sparsehash/time_hash_map
+
+/src/include/*.tsa
+/src/include/rho/stamp-R
+/src/include/R_ext/stamp-R
+/src/include/Rconfig.h
+/src/include/Rmath.h
+/src/include/Rmath.h0
+/src/include/Rversion.h
+/src/include/config.h
+/src/include/stamp-R
+/src/include/stamp-h
+
+/src/library/stamp-docs
+/src/library/*.inn
+/src/library/*/all.R
+/src/library/*/DESCRIPTION
+
+/src/library/Recommended/stamp-recommended
+/src/library/Recommended/*.ts.out
+
+/src/main/R.bin
+/src/main/jit/RuntimeImpl.bc
+
+/src/scripts/Makefile
+/src/scripts/R.fe
+/src/scripts/R.sh
+/src/scripts/Rcmd
+/src/scripts/f77_f2c
+/src/scripts/javareconf
+/src/scripts/mkinstalldirs
+/src/scripts/pager
+/src/scripts/rtags
+
+/src/unix/Rscript
+
+/tests/Makefile
+/tools/Makefile
+/tests/*/Makefile
+
+/stamp-java

cxxr/.travis.yml

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+sudo: required
+dist: trusty
+language: cpp
+env:
+  global:
+    # By default, rho uses its own implementation of tar written in R.
+    # It's really slow, so use system tar instead.
+    - TAR=/bin/tar
+    - R_BUILD_TAR=/bin/tar
+    - R_INSTALL_TAR=/bin/tar
+    # Use catchsegv to get useful stacktraces on failures.
+    - RHO_DEBUGGER=catchsegv
+
+matrix:
+  include:
+    # gcc 4.9
+    - compiler: gcc
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - libboost-all-dev
+            - zlib1g-dev
+            - libbz2-dev
+            - liblzma-dev
+            - libpcre3-dev
+            - libedit-dev
+            - gcc-4.9
+            - g++-4.9
+            - gfortran-4.9
+      env: FC=gfortran-4.9 F77=gfortran-4.9 C_COMPILER=gcc-4.9 CXX_COMPILER=g++-4.9
+
+    # gcc 5.4
+    - compiler: gcc
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - libboost-all-dev
+            - zlib1g-dev
+            - libbz2-dev
+            - liblzma-dev
+            - libpcre3-dev
+            - libedit-dev
+            - gcc-5=5.4.*
+            - g++-5=5.4.*
+            - gfortran-5=5.4.*
+      env: FC=gfortran-5 F77=gfortran-5 C_COMPILER=gcc-5 CXX_COMPILER=g++-5
+
+    # gcc 6.2 with code coverage.
+    - compiler: gcc
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - libboost-all-dev
+            - zlib1g-dev
+            - libbz2-dev
+            - liblzma-dev
+            - libpcre3-dev
+            - libedit-dev
+            - gcc-6=6.2.*
+            - g++-6=6.2.*
+            - gfortran-6=6.2.*
+      env: F77=gfortran-6 FCC=gfortran-6 C_COMPILER=gcc-6 CXX_COMPILER=g++-6 CFLAGS="-g -O1 --coverage" CXXFLAGS="${CFLAGS}" LDFLAGS="${CFLAGS}" COVERAGE=1
+
+    # TODO: work out how to use clang 3.4 on travis.
+    # - compiler: clang
+    #   addons:
+    #     apt:
+    #       sources:
+    #         - ubuntu-toolchain-r-test
+    #       packages:
+    #         - gfortran
+    #         - libboost-all-dev
+    #         - zlib1g-dev
+    #         - libbz2-dev
+    #         - liblzma-dev
+    #         - libpcre3-dev
+    #         - libedit-dev
+    #         - clang-3.4
+    #         - llvm-3.4-dev
+    #   env: C_COMPILER=clang CXX_COMPILER=clang++ LLVM_CONFIG=/usr/bin/llvm-config-3.4
+
+    # With address sanitizer enabled.  Use the most recent supported verison
+    # of clang, to get the best error detection.
+    # TODO: enable initialization order checking.
+    - compiler: clang
+      addons:
+        apt:
+          sources:
+            - sourceline: "deb http://llvm.org/apt/trusty/ llvm-toolchain-trusty-3.8 main"
+          packages:
+            - gfortran
+            - libboost-all-dev
+            - zlib1g-dev
+            - libbz2-dev
+            - liblzma-dev
+            - libpcre3-dev
+            - libedit-dev
+            - clang-3.8
+            - llvm-3.8-dev
+      env: C_COMPILER=clang-3.8 CXX_COMPILER=clang++-3.8 LLVM_CONFIG=/usr/bin/llvm-config-3.8 CPPFLAGS="-DNO_CELLPOOLS" CFLAGS="-g -O2 -fsanitize=address" CXXFLAGS="${CFLAGS}" MAIN_LDFLAGS="${CFLAGS}"
+
+    # With undefined behaviour sanitizer enabled.  Use the most recent
+    # supported verison of clang, to get the best error detection.
+    - compiler: clang
+      addons:
+        apt:
+          sources:
+            - sourceline: "deb http://llvm.org/apt/trusty/ llvm-toolchain-trusty-3.8 main"
+          packages:
+            - gfortran
+            - libboost-all-dev
+            - zlib1g-dev
+            - libbz2-dev
+            - liblzma-dev
+            - libpcre3-dev
+            - libedit-dev
+            - clang-3.8
+            - llvm-3.8-dev
+      env: C_COMPILER=clang-3.8 CXX_COMPILER=clang++-3.8 LLVM_CONFIG=/usr/bin/llvm-config-3.8 UBSAN_OPTIONS="print_stacktrace=1 suppressions=`pwd`/.ubsan_suppressions" CFLAGS="-g -O2 -fsanitize=undefined" CXXFLAGS="${CFLAGS}" MAIN_LDFLAGS="${CFLAGS}"
+
+    - compiler: clang
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gfortran
+            - libboost-all-dev
+            - zlib1g-dev
+            - libbz2-dev
+            - liblzma-dev
+            - libpcre3-dev
+            - libedit-dev
+            - clang-3.5
+            - llvm-3.5-dev
+      env: C_COMPILER=clang-3.5 CXX_COMPILER=clang++-3.5 LLVM_CONFIG=/usr/bin/llvm-config-3.5
+
+    - compiler: clang
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - gfortran
+            - libboost-all-dev
+            - zlib1g-dev
+            - libbz2-dev
+            - liblzma-dev
+            - libpcre3-dev
+            - libedit-dev
+            - clang-3.6
+            - llvm-3.6-dev
+      env: C_COMPILER=clang-3.6 CXX_COMPILER=clang++-3.6 LLVM_CONFIG=/usr/bin/llvm-config-3.6
+
+    - compiler: clang
+      addons:
+        apt:
+          sources:
+            - sourceline: "deb http://llvm.org/apt/trusty/ llvm-toolchain-trusty-3.7 main"
+          packages:
+            - gfortran
+            - libboost-all-dev
+            - zlib1g-dev
+            - libbz2-dev
+            - liblzma-dev
+            - libpcre3-dev
+            - libedit-dev
+            - clang-3.7
+            - llvm-3.7-dev
+      env: C_COMPILER=clang-3.7 CXX_COMPILER=clang++-3.7 LLVM_CONFIG=/usr/bin/llvm-config-3.7
+
+    - compiler: clang
+      addons:
+        apt:
+          sources:
+            - sourceline: "deb http://llvm.org/apt/trusty/ llvm-toolchain-trusty-3.8 main"
+          packages:
+            - gfortran
+            - libboost-all-dev
+            - zlib1g-dev
+            - libbz2-dev
+            - liblzma-dev
+            - libpcre3-dev
+            - libedit-dev
+            - clang-3.8
+            - llvm-3.8-dev
+      env: C_COMPILER=clang-3.8 CXX_COMPILER=clang++-3.8 LLVM_CONFIG=/usr/bin/llvm-config-3.8 CPPFLAGS="-UNDEBUG -DCHECKED_SEXP_DOWNCAST -D_FORTIFY_SOURCE=2" CFLAGS="-g -O2 -fstack-protector-strong" CXXFLAGS=${CFLAGS}
+
+  allow_failures:
+    # Building with llvm 3.7 currently segfaults.  Needs investigating.
+    - env: C_COMPILER=clang-3.7 CXX_COMPILER=clang++-3.7 LLVM_CONFIG=/usr/bin/llvm-config-3.7  
+    # Likewise for the ubsan run.
+    - env: C_COMPILER=clang-3.8 CXX_COMPILER=clang++-3.8 LLVM_CONFIG=/usr/bin/llvm-config-3.8 UBSAN_OPTIONS="print_stacktrace=1 suppressions=`pwd`/.ubsan_suppressions" CFLAGS="-g -O2 -fsanitize=undefined" CXXFLAGS="${CFLAGS}" MAIN_LDFLAGS="${CFLAGS}"
+
+before_install:
+  - pip install --user codecov
+
+script:
+        - tools/rsync-recommended
+        - ${CXX_COMPILER} --version
+        - CC=${C_COMPILER} CXX=${CXX_COMPILER} ./configure
+          --enable-werror
+          --enable-llvm-jit=yes
+          --with-llvm=$LLVM_CONFIG || cat config.log
+        - travis_wait 60 make -j 2
+        # Needed to prevent asan builds running out of memory.
+        - sudo sh -c 'echo 1 > /proc/sys/vm/overcommit_memory'
+        # TODO: upgrade to check-devel.
+        - travis_wait 60 make -j 2 check
+
+after_success:
+  - if [ -n "$COVERAGE" ]; then bash <(curl -s https://codecov.io/bash) -x gcov-6 -g src/extra -g tests -X coveragepy ; fi

cxxr/.ubsan_suppressions

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+vptr:ilist.h