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2017-12-01[cmake] Resubmit Remove redundant call to cmake when building host tools.Don Hinton
Only pass Native to LLVM_TARGETS_TO_BUILD. Summary: Remove the redundant, config-time call to cmake when building host tools for cross compiles or optimized tablegen.. The config-time call to cmake is redundant because it will always get called again when the CONFIGURE_LLVM_${target_name} target fires at build-time. This speeds up initial configuration, but has no affect on build behavior. Differential Revision: https://reviews.llvm.org/D40229 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319574 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01[cmake] Enable zlib support on windowsPavel Labath
Summary: zlib support was hard-wired to off for (non-cygwin) windows targets. This disables some features, such as reading debug info from compressed dwarf sections. This has been this way since zlib support was added in 2013 (r180083), but there is no obvious reason for that. Zlib is perfectly capable of being compiled for windows (it even has a cmake file that works out of the box). This enables one to turn on zlib support on windows, if one has zlib avaliable. Reviewers: rnk, beanz Subscribers: mgorny, aprantl, llvm-commits Differential Revision: https://reviews.llvm.org/D40655 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319533 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01[cmake] Expose opt-viewer availabilityAdam Nemet
This will be used in https://github.com/apple/swift/pull/12938 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319511 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[llvm] Add stripped installation targetsShoaib Meenai
CMake's generated installation scripts support `CMAKE_INSTALL_DO_STRIP` to enable stripping the installed binaries. LLVM's build system doesn't expose this option to the `install-` targets, but it's useful in conjunction with `install-distribution`. Add a new function to create the install targets, which creates both the regular install target and a second install target that strips during installation. Change the creation of all installation targets to use this new function. Stripping doesn't make a whole lot of sense for some installation targets (e.g. the LLVM headers), but consistency doesn't hurt. I'll make other repositories (e.g. clang, compiler-rt) use this in a follow-up, and then add an `install-distribution-stripped` target to actually accomplish the end goal of creating a stripped distribution. I don't want to do that step yet because the creation of that target would depend on the presence of the `install-*-stripped` target for each distribution component, and the distribution components from other repositories will be missing that target right now. Differential Revision: https://reviews.llvm.org/D40620 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319480 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[cmake] Include project name in Sphinx doctree dir to fix race conditionsMichal Gorny
Modify add_sphinx_target() to include the project name alongside builder in Sphinx doctree directory. This aims to avoid crashes due to race conditions between multiple Sphinx instances running in parallel that attempt to create or read that directory simultaneously. This problem has originally been addressed in r283188. However, that commit presumed that there will be only one target per builder being run. However, r314863 introduced a second manpage target, reintroducing the race condition. Differential Revision: https://reviews.llvm.org/D40656 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319461 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-29[cmake] Replace -Wall with /W4 in clang-cl options now that -Wall aliases ↵Greg Bedwell
-Weverything Instead, reuse the code-path for cl.exe that adds /W4 , which for clang-cl aliases clang's "-Wall -Wextra" which matches what clang-cl's /Wall previously aliased. This should restore the verbosity of a Windows selfhost build back to its previous levels. Differential Revision: https://reviews.llvm.org/D40603 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319330 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-29Add opt-viewer testingAdam Nemet
Detects whether we have the Python modules (pygments, yaml) required by opt-viewer and hooks this up to REQUIRES. This fixes https://bugs.llvm.org/show_bug.cgi?id=34129 (the lack of opt-viewer testing). It's also related to https://github.com/apple/swift/pull/12938 and the idea is to expose LLVM_HAVE_OPT_VIEWER_MODULES to the Swift cmake. Differential Revision: https://reviews.llvm.org/D40202 Fixes since the first commit: 1. Disable syntax highlighting as different versions of pygments generate different HTML 2. Use llvm-cxxfilt from the build git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319324 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-29Rollback r319176.Don Hinton
The ';' separators in LLVM_TARGETS_TO_BUILD disappear when list variables are evaluated in custom commands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319268 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-29Revert "Add opt-viewer testing"Adam Nemet
This reverts commit r319188. Breaks when c++filt is not available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319262 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-28[cmake] Pass LLVM_USE_LINKER flag when building host tools, e.g.,Don Hinton
LLVM_OPTIMIZED_TABLEGEN=ON, and not crosscompiling. Differential Revision: https://reviews.llvm.org/D39734 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319228 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-28Add opt-viewer testingAdam Nemet
Detects whether we have the Python modules (pygments, yaml) required by opt-viewer and hooks this up to REQUIRES. This fixes https://bugs.llvm.org/show_bug.cgi?id=34129 (the lack of opt-viewer testing). It's also related to https://github.com/apple/swift/pull/12938 and the idea is to expose LLVM_HAVE_OPT_VIEWER_MODULES to the Swift cmake. Differential Revision: https://reviews.llvm.org/D40202 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319188 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-28[cmake] Remove redundant call to cmake when building host tools.Don Hinton
Summary: Remove the redundant, config-time call to cmake when building host tools for cross compiles or optimized tablegen.. The config-time call to cmake is redundant because it will always get called again when the CONFIGURE_LLVM_${target_name} target fires at build-time. This speeds up initial configuration, but has no affect on build behavior. Reviewers: beanz Reviewed By: beanz Subscribers: mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D40229 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319176 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-28Revert "Add opt-viewer testing"Adam Nemet
This reverts commit r319073. Bot fails with a mismatch that looks like pygments-generated HTML. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319146 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-27[CMake] Pass LLVM_HOST_TRIPLE to external projectsPetr Hosek
LLVM runtimes rely on LLVM_HOST_TRIPLE being set in their builds and tests so make sure it's being passed down. Differential Revision: https://reviews.llvm.org/D40515 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319109 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-27[cmake] Pass -Wl,-z,nodelete on Linux to prevent unloadingMichal Gorny
Prevent unloading shared libraries on Linux when dlclose() is called. This is necessary since command-line option parsing API relies on registering the global option instances in the option parser instance which can be loaded in a different shared library. Given that we can't reliably remove those options when a library is unloaded, the parser ends up containing dangling references. Since glibc has relatively complex library unloading rules, some of the LLVM libraries can be unloaded while others (including the Support library) stay loaded causing quite a mayhem. To reliably prevent that, just forbid unloading all libraries -- it's a very bad idea anyway. While the issue arguably happens only with BUILD_SHARED_LIBS, it may affect any library reusing llvm::cl interface. Based on patch provided Ross Hayward on https://bugs.gentoo.org/617154. Previously hit by Fedora back in Feb 2016: https://lists.freedesktop.org/archives/mesa-dev/2016-February/107242.html Differential Revision: https://reviews.llvm.org/D40459 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319105 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-27Use LIST_SEPARATOR rather than escaping in ExternalProject_AddPetr Hosek
Escaping ; in list arguments passed to ExternalProject_Add doesn't seem to be working in newer versions of CMake (see https://public.kitware.com/Bug/view.php?id=16137 for more details). Use a custom LIST_SEPARATOR instead which is the officially supported way. Differential Revision: https://reviews.llvm.org/D40232 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319089 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-27Revert r319069 - [cmake] Pass -Wl,-z,nodelete on Linux to prevent unloadingMichal Gorny
This breaks one of the unit tests. Need to find a good solution. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319076 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-27Add opt-viewer testingAdam Nemet
Detects whether we have the Python modules (pygments, yaml) required by opt-viewer and hooks this up to REQUIRES. This fixes https://bugs.llvm.org/show_bug.cgi?id=34129 (the lack of opt-viewer testing). It's also related to https://github.com/apple/swift/pull/12938 and the idea is to expose LLVM_HAVE_OPT_VIEWER_MODULES to the Swift cmake. Differential Revision: https://reviews.llvm.org/D40202 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319073 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-27[cmake] Pass -Wl,-z,nodelete on Linux to prevent unloadingMichal Gorny
Prevent unloading shared libraries on Linux when dlclose() is called. This is necessary since command-line option parsing API relies on registering the global option instances in the option parser instance which can be loaded in a different shared library. Given that we can't reliably remove those options when a library is unloaded, the parser ends up containing dangling references. Since glibc has relatively complex library unloading rules, some of the LLVM libraries can be unloaded while others (including the Support library) stay loaded causing quite a mayhem. To reliably prevent that, just forbid unloading all libraries -- it's a very bad idea anyway. While the issue arguably happens only with BUILD_SHARED_LIBS, it may affect any library reusing llvm::cl interface. Based on patch provided Ross Hayward on https://bugs.gentoo.org/617154. Previously hit by Fedora back in Feb 2016: https://lists.freedesktop.org/archives/mesa-dev/2016-February/107242.html Differential Revision: https://reviews.llvm.org/D40459 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319069 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-17[CMake] Allow for Solaris ld -V output on stdoutMichal Gorny
In recent versions of Solaris 11.4 (previously 12), ld -V output went to stdout instead of stderr. Since AddLLVM.cmake only expects it on stderr, Solaris ld wasn't properly detected and options not understood by it are passed during the build. The following patch fixes this, allowing for both variants. Tested on i386-pc-solaris2.11.4 (on top of D35755 which is needed for proper Solaris support). Patch by Rainer Orth. Differential Revision: https://reviews.llvm.org/D39601 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318532 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16[globalisel][tablegen] Generate rule coverage and use it to identify ↵Daniel Sanders
untested rules Summary: This patch adds a LLVM_ENABLE_GISEL_COV which, like LLVM_ENABLE_DAGISEL_COV, causes TableGen to instrument the generated table to collect rule coverage information. However, LLVM_ENABLE_GISEL_COV goes a bit further than LLVM_ENABLE_DAGISEL_COV. The information is written to files (${CMAKE_BINARY_DIR}/gisel-coverage-* by default). These files can then be concatenated into ${LLVM_GISEL_COV_PREFIX}-all after which TableGen will read this information and use it to emit warnings about untested rules. This technique could also be used by SelectionDAG and can be further extended to detect hot rules and give them priority over colder rules. Usage: * Enable LLVM_ENABLE_GISEL_COV in CMake * Build the compiler and run some tests * cat gisel-coverage-[0-9]* > gisel-coverage-all * Delete lib/Target/*/*GenGlobalISel.inc* * Build the compiler Known issues: * ${LLVM_GISEL_COV_PREFIX}-all must be generated as a manual step due to a lack of a portable 'cat' command. It should be the concatenation of all ${LLVM_GISEL_COV_PREFIX}-[0-9]* files. * There's no mechanism to discard coverage information when the ruleset changes Depends on D39742 Reviewers: ab, qcolombet, t.p.northover, aditya_nandakumar, rovka Reviewed By: rovka Subscribers: vsk, arsenm, nhaehnle, mgorny, kristof.beyls, javed.absar, igorb, llvm-commits Differential Revision: https://reviews.llvm.org/D39747 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318356 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-14CMake: Turn LLVM_ENABLE_LIBXML2 into a tri-state optionHans Wennborg
In addition to the current ON and OFF options, this adds the FORCE_ON option, which causes a configuration error if libxml2 cannot be used. Differential revision: https://reviews.llvm.org/D40050 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318209 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-13Move the setting of LLVM_BUILD_MODE to a macro so that we can re-use it in ↵Greg Bedwell
compiler-rt Differential Revision: https://reviews.llvm.org/D38470 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318034 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09Add a Cross-compilation toolchain file for MSVC.Zachary Turner
With this patch, you can now cross-compile for Windows on non-Windows hosts. Differential Revision: https://reviews.llvm.org/D39814 This allows cross-compiling for windows on other platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317830 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[CMake] Passthrough CMAKE_SYSROOT to external projectsPetr Hosek
Differential Revision: https://reviews.llvm.org/D39029 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317744 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-08[cmake] Allow LLVM_BUILD_INSTRUMENTED to be set to IR or FrontendVedant Kumar
- This deprecates LLVM_ENABLE_IR_PGO but keeps it around for now. - Errors out when LLVM_BUILD_INSTRUMENTED and LLVM_BUILD_INSTRUMENTED_COVERAGE are both set. Motivated by bogner's post-commit review of r313770. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317725 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-08[CMake] Remove target to build native tablegenJonas Hahnfeld
This was once needed so that multiple tablegen binaries don't compile the library concurrently. However, this isn't needed anymore since adding USES_TERMINAL to the custom_command. This is supported by the fact that the target was only building LLVMSupport since some cleanups a year ago. If this dependency had really been needed, we would have seen complaints. Differential Revision: https://reviews.llvm.org/D39299 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317695 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-08[CMake] Add custom target to create build directoryJonas Hahnfeld
CMake does a poor job in tracking dependencies on files and directories directly. Create custom target similar to the configuration step. On my system, this avoids the reconfiguration on each build. Differential Revision: https://reviews.llvm.org/D39298 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317694 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-06Revert r316064 "Fix the incorrect detection of ICONV_LIBRARY_PATH"Hans Wennborg
This broke the use of libxml2 on machines where iconv() is provided by libc. I'll follow up on the mailing list to discuss how to fix this properly. > This is introduced in rL308711. > Check for c library is incorrect here just because libc will be found always > and it does not mean that iconv is presented. > > Thank to Andrew Krasny for narrowing down the root cause. > > Reviewers: ecbeckmann > Reviewed By: ecbeckmann > Subscribers: mgorny, llvm-commits > Differential Revision: https://reviews.llvm.org/D38875 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317517 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-04Move the srpm, ocaml_make_directory, llvm_vcsrevision_h, and llvm-headers ↵Aaron Ballman
projects into the Misc folder on IDEs like Visual Studio rather than leave them in the root directory. NFC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317416 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-04CMake: Let LLVM_BUILD_32_BITS aware of large file.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317402 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-31[cmake] Make check_linker_flags operate via linker flagsShoaib Meenai
`check_linker_flags` currently sets the *compiler* flags (via `CMAKE_REQUIRED_FLAGS`), and thus implicitly relies on cmake's default behavior of passing the compiler flags to the linker. This breaks when cmake's build rules have been altered to not pollute the link line with compiler flags (which can be desirable for build cleanliness). Instead, set `CMAKE_EXE_LINKER_FLAGS` explicitly and use `CMP0056` to ensure the linker flags are passed along. Additionally, since we're inside a function, we can just alter the variable directly (as the alteration will be limited to the scope of the function) rather than saving and restoring the old value. Differential Revision: https://reviews.llvm.org/D39431 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316972 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-30Fix -fuse-ld feature detection error.Rui Ueyama
check_cxx_compiler_flag doesn't seem to try to link a program, so the existing code doesn't correctly detect the availability of a given linker. This patch uses check_cxx_source_compiles instead. I confirmed that cmake now reports this error Host compiler does not support '-fuse-ld=foo' for -DLLVM_USE_LINKER=foo. Differential Revision: https://reviews.llvm.org/D39274 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316958 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-30[CMake] Fix linker detection in AddLLVM.cmakeTim Shen
Fix linker not being correctly detected when a custom one is specified through LLVM_USE_LINKER CMake variable. In particular, cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_USE_LINKER=gold ../llvm resulted into Linker detection: GNU ld instead of Linker detection: GNU Gold due to the construction not accounting for such variable. It led to the general confusion and prevented setting linker-specific flags inside functions defined in AddLLVM.cmake. Thanks Oleksii Vilchanskyi for the patch! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316956 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-27Force #define GTEST_LANG_CXX11.Zachary Turner
gtest depends on this #define to determine whether it can use various classes like std::tuple, or whether it has to fall back to experimental classes in the std::tr1 namespace. The check in the current version of gtest relies on the value of the `__cplusplus` macro, but MSVC provides a non-conformant value of this macro, making it effectively impossible to detect C++11. In short, LLVM compiled with MSVC has been silently using the tr1 versions of several classes since the beginning of time. This would normally be pretty benign, except that in the latest preview of MSVC they have marked all of the tr1 classes deprecated, so it spews thousands of warnings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316798 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-25[cmake] Restrict resource file usage to Windows build hostsShoaib Meenai
Resource file compilation requires a working resource compiler. Unfortunately, llvm-rc isn't quite there yet [1], and cmake's rc invocation only works on Windows [2]. Until both those issues are addressed, disable resource file usage on non-Windows build hosts, to unblock Windows cross-compilation. This is also consistent with the existing comment, which says "If *on Windows* and building with MSVC". [1] http://lists.llvm.org/pipermail/llvm-dev/2017-October/118433.html [2] https://public.kitware.com/pipermail/cmake/2017-October/066441.html Differential Revision: https://reviews.llvm.org/D39265 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316594 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-19Revert 316150 which reinstated r316025.Vassil Vassilev
It fails on some bots and now we know how to reproduce it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316153 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-19Reinstate r316025, reverted in r316029.Vassil Vassilev
Original commit message: "[cmake] Use find_package to discover zlib This allows us to use standard cmake utilities to point to non-system zlib locations. Patch by Oksana Shadura and me (D39002)." The new patch brings back the old behavior in the cases where find_package cannot find zlib. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316150 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-18Fix the incorrect detection of ICONV_LIBRARY_PATHSerguei Katkov
This is introduced in rL308711. Check for c library is incorrect here just because libc will be found always and it does not mean that iconv is presented. Thank to Andrew Krasny for narrowing down the root cause. Reviewers: ecbeckmann Reviewed By: ecbeckmann Subscribers: mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D38875 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316064 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-17Revert "[cmake] Use find_package to discover zlib"Vassil Vassilev
We are investigating what went wrong. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316029 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-17[cmake] Use find_package to discover zlibVassil Vassilev
This allows us to use standard cmake utilities to point to non-system zlib locations. Patch by Oksana Shadura and me (D39002). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@316025 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-15Search for libxml2 on macOS too.Nico Weber
This allows lld-link to process /manifestinput: flags on macOS too. Also makes the `REQUIRES: manifesttool` lld tests run on macOS. Setting LLVM_ENABLE_LIBXML2 to off can suppress this behavior, like on Linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315873 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-12[cmake] Allow building fuzzers with OSS-Fuzz flags.Matt Morehouse
Reviewers: kcc, bogner Reviewed By: bogner Subscribers: mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D38858 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315629 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-04Bring r314809 back.Rafael Espindola
But now include a check for CPU_COUNT so we still build on 10 year old versions of glibc. Original message: Use sched_getaffinity instead of std::thread::hardware_concurrency. The issue with std::thread::hardware_concurrency is that it forwards to libc and some implementations (like glibc) don't take thread affinity into consideration. With this change a llvm program that can execute in only 2 cores will use 2 threads, even if the machine has 32 cores. This makes benchmarking a lot easier, but should also help if someone doesn't want to use all cores for compilation for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314931 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-04Revert D38481 due to missing cmake check for CPU_COUNTDaniel Neilson
Summary: This reverts D38481. The change breaks systems with older versions of glibc. It injects a use of CPU_COUNT() from sched.h without checking to ensure that the function exists first. Reviewers: Subscribers: git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314922 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-03Use sched_getaffinity instead of std::thread::hardware_concurrency.Rafael Espindola
The issue with std::thread::hardware_concurrency is that it forwards to libc and some implementations (like glibc) don't take thread affinity into consideration. With this change a llvm program that can execute in only 2 cores will use 2 threads, even if the machine has 32 cores. This makes benchmarking a lot easier, but should also help if someone doesn't want to use all cores for compilation for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314809 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-29Revert "[CMake] Remove `CMAKE_.*_OUTPUT_DIRECTORY` (NFCI)"Brian Gesiak
Summary: It appears polly makes use of the `CMAKE_RUNTIME_OUTPUT_DIRECTORY` variable when configuring its lit test suite. Reverting this for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314551 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-29[CMake] Remove `CMAKE_.*_OUTPUT_DIRECTORY` (NFCI)Brian Gesiak
Summary: Three `CMAKE_.*_OUTPUT_DIRECTORY` variables used to be set in CMake and referenced in various other parts of the project. However, in r198205 chapuni added a note to "don't set them anymore", and any remaining references to them were subsequently removed in r198316 and r199592. Now that the variables are no longer used anywhere, remove them, along with the comments advising against using them any longer. Test Plan: I ran `check-all` and confirmed the tests built and passed. Reviewers: beanz, chapuni Reviewed By: beanz Subscribers: mgorny Differential Revision: https://reviews.llvm.org/D38389 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314550 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-27Cleanup some problems with LLVM_ENABLE_DUMP in release builds, andDon Hinton
always set LLVM_ENABLE_DUMP=ON for +Asserts builds. Differential Revision: https://reviews.llvm.org/D38306 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314346 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-26CMake: Add option to set LLVM_ENABLE_DUMPMatthias Braun
Differential Revision: https://reviews.llvm.org/D38267 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314186 91177308-0d34-0410-b5e6-96231b3b80d8