Commit Graph

807 Commits

Author SHA1 Message Date
NAKAMURA Takumi
b1e51dae69 [CMake] Unbreak add_llvm_external_project when external projects are specified.
LLVM_EXTERNAL_*_SOURCE_DIR is reset as PATH with set(CACHE PATH).
Then the CACHE PATH variable, LLVM_EXTERNAL_*_SOURCE_DIR, is normalized as
${CMAKE_SOURCE_DIR}/${path_var} if ${path_var} is relative.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242120 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-14 05:12:53 +00:00
Chris Bieneman
ce0f2eda63 [CMake] Forgot to quote the first part of STREQUAL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242103 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-14 01:19:07 +00:00
Chris Bieneman
5bd68ee9b4 [CMake] We shouldn't be storing values in the cache unless they actually need CMake cache behavior.
add_llvm_external_project puts LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR into the cache even if it is just the in-tree default path. This causes all sorts of oddness, and makes it so that I can't change the behavior of this variable.

This patch never puts LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR into the cache. It will only end up in the cache if it is specified on the command line, which is the correct behavior.

There is also a temporary change to remove non-default values from the cache if they are already present. This should have the impact of cleaning out unncecissary values from the caches on the buildbots and people's local build directories. This part of the change is marked with a TODO and can be removed in a few days.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242102 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-14 01:17:43 +00:00
Chris Bieneman
7d41350722 Revert "[CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that was already partially working."
Reverting r242059 because it broke some bots. I'm attempting to reproduce the failures now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242060 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-13 20:30:58 +00:00
Chris Bieneman
8d539b5519 [CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that was already partially working.
Summary:
This change re-lands r241621, with an additional fix that was required to allow tool sources to live outside the llvm checkout. It also no longer renames LLVM_EXTERNAL_*_SOURCE_DIR. This change was reverted in r241663, because it renamed several variables of the format LLVM_EXTERNAL_*_* to LLVM_TOOL_*_*.

Original Summary:
The tools CMakeLists file already had implicit tool registration, but there were a few things off about it that needed to be altered to make it work. This change addresses all that. The changes in this patch are:

* factored out canonicalizing tool names from paths to CMake variables * removed the LLVM_IMPLICIT_PROJECT_IGNORE mechanism in favor of LLVM_EXTERNAL_${nameUPPER}_BUILD which I renamed to LLVM_TOOL_${nameUPPER}_BUILD because it applies to internal and external tools
* removed ignore_llvm_tool_subdirectory() in favor of just setting LLVM_TOOL_${nameUPPER}_BUILD to Off
* Added create_llvm_tool_options() to resolve a bug in add_llvm_external_project() - the old LLVM_EXTERNAL_${nameUPPER}_BUILD would not work on a clean CMake directory because the option could be created after it was set in code.
* Removed all but the minimum required calls to add_llvm_external_project from tools/CMakeLists.txt

Differential Revision: http://reviews.llvm.org/D10665

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242059 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-13 20:23:15 +00:00
NAKAMURA Takumi
78cca47fc6 Revert r241621, "[CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that was already partially working."
It broke the build that relies on LLVM_EXTERNAL_CLANG_*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241663 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-08 02:35:43 +00:00
Chris Bieneman
651c3901be [CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that was already partially working.
Summary:
The tools CMakeLists file already had implicit tool registration, but there were a few things off about it that needed to be altered to make it work. This change addresses all that. The changes in this patch are:

* factored out canonicalizing tool names from paths to CMake variables
* removed the LLVM_IMPLICIT_PROJECT_IGNORE mechanism in favor of LLVM_EXTERNAL_${nameUPPER}_BUILD which I renamed to LLVM_TOOL_${nameUPPER}_BUILD because it applies to internal and external tools
* removed ignore_llvm_tool_subdirectory() in favor of just setting LLVM_TOOL_${nameUPPER}_BUILD to Off
* Added create_llvm_tool_options() to resolve a bug in add_llvm_external_project() - the old LLVM_EXTERNAL_${nameUPPER}_BUILD would not work on a clean CMake directory because the option could be created after it was set in code.
* Removed all but the minimum required calls to add_llvm_external_project from tools/CMakeLists.txt

Reviewers: bogner, samsonov, chapuni, beanz

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10665

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241621 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-07 20:24:55 +00:00
NAKAMURA Takumi
a2a3583415 [CMake] add_llvm_symbol_exports: Use Python oneliner instead of "cmd.exe /c type" to generate *.def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241402 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-05 08:56:38 +00:00
Leny Kholodov
479dc2c0fe [Support] Lazy load of dbghlp.dll on Windows
This patch changes linkage with dbghlp.dll for clang from static (at load time)
to on demand (at the first use of required functions). Clang uses dbghlp.dll
only in minor use-cases. First of all in case of crash and in case of plugin load.
The dbghlp.dll library can be absent on system. In this case clang will fail
to load. With lazy load of dbghlp.dll clang can work even if dbghlp.dll
is not available.

Differential Revision: http://reviews.llvm.org/D10737



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241271 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-02 14:34:57 +00:00
Dan Liew
171129e7eb [CMake] Make the CMake files (LLVMConfig.cmake and LLVMExports.cmake)
generated by the Autoconf/Makefile build system relocatable.

Previously the generated CMake files contained hardcoded paths which
prevented a binary installation from being relocated to a different
place in the file system. This problem was most noticeable in LLVM's
official binary releases which were completely unusable by a downstream
project trying to import the CMake targets.

Package maintainers who choose to modify the install location of the
CMake directory without using the ``PROJ_cmake`` Makefile variable
override will need to patch the generated``LLVMConfig.cmake`` so that
``LLVM_INSTALL_PREFIX`` and ``_LLVM_CMAKE_DIR`` variables are set
correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241080 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-30 17:16:39 +00:00
Dan Gohman
a74341308f [WebAssembly] Initial WebAssembly backend
This WebAssembly backend is just a skeleton at this time and is not yet
functional.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241022 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-29 23:51:55 +00:00
Dan Liew
40a45a25be Fix bug #23967. The gtest and gtest_main targets were exported into the
CMake files and should not be by both build systems and also the targets
were also installed by the CMake build system which they should not be.

The problem was that

- the CMake build of LLVM installs and exports the gtest library
targets. We should not being doing this, these are not part of LLVM.

- the Autoconf/Makefile build of LLVM still had gtest libraries in the
installed LLVMConfig.cmake.

These problems would cause problems for an external project because when
calling llvm_map_components_to_libnames(XXX all) ${XXX} would to contain
LLVM's internal gtest libraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240981 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-29 18:45:56 +00:00
Peter Zotov
b9fec3eb61 [OCaml] Bump ctypes dependency to 0.4.
ctypes 0.3 and earlier contains an interface-definig bug:
its ptr_of_raw_address accepts Int64 and not Nativeint. ctypes 0.4
was not released during the 3.6 cycle, and because of that, LLVM 3.6
was released with ctypes 0.3 as a dependency, which now breaks
the build on modern ctypes.

Unbreak.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240882 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-27 14:32:30 +00:00
Douglas Katzman
e40e848767 Spelling fixes in comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240594 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-24 21:46:53 +00:00
Rafael Espindola
fc3dae1cd0 Support Solaris unused sections' gc link syntax.
It is not clear if this would work or not with LLVM_NO_DEAD_STRIP
binaries, so be conservative for now.

Patch by Xan López.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240287 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-22 15:06:17 +00:00
Rafael Espindola
e16fa7fec8 Do not pass optimization flags to Solaris' linker.
It is not supported.

Patch by Xan López.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240276 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-22 12:41:52 +00:00
Rafael Espindola
4c8ba2e74d Use right syntax to pass version script to Solaris' ld.
Patch by Xan Lopez!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240275 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-22 12:34:54 +00:00
Filipe Cabecinhas
e2d0c66ce5 CMake: Stop using LLVM's custom parse_arguments (delete implementation). NFC
Summary:
Finally, delete LLVM's parse_arguments() definition.
Second part of D10531.

This is dependent on http://reviews.llvm.org/D10529

Reviewers: pcc, beanz, chapuni

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10531

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240122 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-19 03:45:42 +00:00
Filipe Cabecinhas
84b16655fd CMake: Stop using LLVM's custom parse_arguments. NFC
Summary:
Use CMake's cmake_parse_arguments() instead.
It's called in a slightly different way, but supports all our use cases.
It's in CMake 2.8.8, which is our minimum supported version.

CMake 3.0 doc (roughly the same. No direct link to 2.8.8 doc):
http://www.cmake.org/cmake/help/v3.0/module/CMakeParseArguments.html?highlight=cmake_parse_arguments

Reviewers: pcc, beanz, chapuni

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10531

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240121 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-19 03:45:40 +00:00
Peter Collingbourne
ce69bac886 Silence resource compiler using /nologo flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239983 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-18 01:15:18 +00:00
James Y Knight
cc73f10648 Repair cmake libatomic check.
The cmake check for whether libatomic could be used had been
unconditionally setting the result to false. Which was somewhat
fortunate, because the prerequisite check for whether it was *needed*
was always claiming it was, even if it was not.

However, this made platforms where libatomic is actually necessary
fail to link.

Differential Revision: http://reviews.llvm.org/D10453

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239819 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-16 14:00:01 +00:00
NAKAMURA Takumi
f6da33d457 [CMake] Try to fix r239612, not to miss resources/windows_version_resource.rc in clang build.
- Who defines ${LLVM_SOURCE_DIR} ?
  - Would windows_version_resource.rc be available in an *installed* llvm tree?
    I suggest it may be installed in ${PREFIX}/share.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239703 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-14 21:47:29 +00:00
Greg Bedwell
cb2dfa6478 In MSVC builds embed a VERSIONINFO resource in our exe and DLL files.
This reinstates my commits r238740/r238741 which I reverted due to a failure
in the clang-cl selfhost tests on Windows.  I've now fixed the issue in
clang-cl that caused the failure so hopefully all should be well now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239612 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-12 15:58:29 +00:00
Peter Zotov
00040a8e8f [cmake] [OCaml] Make ocamldoc targets depend on output files
OCaml doc builds fail without .cmi files, and .cmi files are collected
in ocaml_outputs. Therefore, make doc targets depend on ocaml_outputs as
well.

Fixes: https://llvm.org/bugs/show_bug.cgi?id=23777

Patch by Michał Górny <mgorny@gentoo.org>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239259 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-07 19:22:22 +00:00
Greg Bedwell
fe195d78dd [CMake] Revert commits r238740/r238741 for embedding Windows version info.
The clang Windows bots are showing mysterious failures.
Reverting until I can figure out what's going on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238744 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-01 13:40:14 +00:00
Greg Bedwell
84ffd21170 remove the use of the LOCATION CMake variable from r238740.
It caused the following failure:
"Policy CMP0026 is not set: Disallow use of the LOCATION target property."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238741 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-01 13:06:10 +00:00
Greg Bedwell
c2165f1e9f In MSVC builds embed a VERSIONINFO resource in our exe and DLL files.
This embeds Windows version information into our executables and DLLs.
The most visible place to view this data is in the details tab of the file
properties window in Windows explorer.

Differential Revision: http://reviews.llvm.org/D7828

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238740 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-01 12:41:55 +00:00
Chris Bieneman
09681051e6 [CMake] Bug 23468 - LLVM_OPTIMIZED_TABLEGEN does not work with Visual Studio
Summary: Multi-configuration builds put their binaries into ${CMAKE_BINARY_DIR}/Release/bin/. The table-gen cross-compilation support needs to take that into account.

Reviewers: yaron.keren

Reviewed By: yaron.keren

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10102

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238592 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-29 18:34:41 +00:00
Reid Kleckner
4bc9d4ea26 Try to fix the build with MSVC 2015 by disabling sized deallocation
I can't actually test this properly because uninstalling MSVC 2015 CTP 6
and reinstalling the 2015 RC takes hours. I can only verify that this
doesn't mess up MSVC 2013 and 2015 CTP 6 builds, which is what I've
done.

Should fix PR23513.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237743 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-19 23:28:23 +00:00
Yaron Keren
7141b3d6f3 Use cat and not type Under MSYS, same as Cygwin.
type means something else under the MSYS shell.

Patch by Tzafrir Poupko!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237692 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-19 12:59:23 +00:00
Justin Bogner
e6fb4ac3ed cmake: Use -fno-sanitize-recover=all - the old spelling is deprecated
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237334 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-14 04:52:57 +00:00
Eric Fiselier
00386077e1 Allow the CMake option 'LLVM_ABI_BREAKING_CHECKS' to be undefined.
When building libc++abi in a standalone configuration the CMake option
'LLVM_ABI_BREAKING_CHECKS` will not be defined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237204 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-12 22:49:18 +00:00
Kostya Serebryany
8ae273d380 [lib/Fuzzer] use -fsanitize-coverage=trace-cmp when building LLVM with LLVM_USE_SANITIZE_COVERAGE; in lib/Fuzzer try to reload the corpus to pick up new units from other processes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236906 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-08 21:30:55 +00:00
Alexey Samsonov
8227e6a8b4 Update CMake flags, LibFuzzer comments and docs for new -fsanitize-coverage= flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236797 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-07 23:33:24 +00:00
Niels Ole Salscheider
16b7c0f4fb [CMake] Also search for prefixed versions of ld.gold
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236312 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-01 11:58:30 +00:00
Rafael Espindola
077908a4d2 Allow building the gold plugin even if the gold binary is not found.
The gold binary is not required to build the plugin. All that is
needed is for LLVM_BINUTILS_INCDIR to point to the directory
containing plugin-api.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235918 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-27 21:08:47 +00:00
Chris Bieneman
eb3bc0ba5f [CMake] Fix for PR 23328: LLVM_OPTIMIZED_TABLEGEN broken
In CMake dependencies can be filenames or targets, and targets can't be filenames. The Ninja generator handles filename dependencies because it generates targets for every output file from a command. For example:

add_custom_command(OUTPUT foo.txt COMMAND touch foo.txt)

With the Ninja generator this generates a target foo.txt, but with the Makefile generator it doesn't. This is probably because Ninja explicitly requires these hard dependency ties, and Make just behaves oddly in general.

To fix this we need to make the tablegen actions depend on a target rather than a filename.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235732 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-24 17:09:20 +00:00
Reid Kleckner
1606ccad09 [cmake] Quote the path to the target exports file, fixes PR23313
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235519 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-22 16:23:00 +00:00
Andrew Kaylor
550a1ca576 Silence MSVC build alignment warnings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235450 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-21 22:29:38 +00:00
Pete Cooper
e6308656a6 Add targets to cmake for specific target components.
This adds the following targets to cmake.  These can be used to build and link only specific parts of a backend, instead of having to link the whole backend.

- AllTargetsAsmPrinters, AllTargetsAsmParsers, AllTargetsDescs, AllTargetsDisassemblers, AllTargetsInfos

A typical use for these is instead of linking ${LLVM_TARGETS_TO_BUILD}.  This commit changes llvm-mc to show how to use the new targets.

Reviewed by Chris Bieneman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235324 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-20 18:22:05 +00:00
Chris Bieneman
e59dcc804f Cleanup based on rnk's feedback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235125 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-16 18:08:33 +00:00
Chris Bieneman
3cdbd163d0 Fixing windows bots.
Third time's the try.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235123 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-16 17:40:51 +00:00
Chris Bieneman
578a18c4fc Better fix to the windows conditional.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235121 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-16 17:26:50 +00:00
Chris Bieneman
9e93b6429d Fix Windows bots.
Turns out Windows is special. All library installs are RUNTIME.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235120 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-16 17:25:17 +00:00
Chris Bieneman
1a0e0ea4fb Fixing a mis-use of the CMake install command.
The CMake install command is defined as:

install(TARGETS targets... [EXPORT <export-name>]
        [[ARCHIVE|LIBRARY|RUNTIME|FRAMEWORK|BUNDLE|
          PRIVATE_HEADER|PUBLIC_HEADER|RESOURCE]
         [DESTINATION <dir>]
         [INCLUDES DESTINATION [<dir> ...]]
         [PERMISSIONS permissions...]
         [CONFIGURATIONS [Debug|Release|...]]
         [COMPONENT <component>]
         [OPTIONAL] [NAMELINK_ONLY|NAMELINK_SKIP]
        ] [...])

This means it can only take one parameter from the set of RUNTIME, LIBRARY, or ARCHIVE. If you set more than one of these it seems to gobble up the extra arguments and ignore the COMPONENT argument.

This adds a check to only set LIBRARY or ARCHIVE based on whether or not the library being built is shared.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235113 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-16 16:56:18 +00:00
Zachary Turner
daa55a66a0 [msvc] Strip /W[0-4] before appending /W4
Certain versions of CMake specify /W3 as part of CMAKE_CXX_FLAGS
by default, before you do anything.  Appending /W4 to the end of
this and using the Ninja generator results in

cl : Command line warning D9025 : overriding '/W3' with '/W4'.

It is not possible to suppress this since it is a command line
warning and not a compiler warning, so we must fix the command
line to contain only one value for /Wn.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234907 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-14 16:57:54 +00:00
NAKAMURA Takumi
032f4a9ad1 [CMake] Uniquify LLVM_ABI_BREAKING_CHECKS. It reverts r233784, "[CMake] Cache in LLVMConfig.cmake."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234720 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-13 04:54:12 +00:00
Rafael Espindola
6dc9f59df9 Disable all link optimizations in a debug build.
This taking linking clang on my machine with gold from 16.980257914 to
15.933037649 seconds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234161 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-06 15:04:31 +00:00
Rafael Espindola
e104aca94c Don't pass -O3 to the linker in debug builds.
This takes linking clang in a debug build with gold form 19.518925697 to
16.406388685 seconds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234160 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-06 14:51:01 +00:00
Rafael Espindola
29072c8fab Don't use -ffunction-sections -fdata-sections on debug builds.
Unfortunately, on ELF there is not used attribute on the .o files,
so there is no easy way to keep the dump function alive.

If we are not gcing, we may as well produce non gcable files and
avoid the cost.

Linking a debug clang now takes 18.856225992 seconds, before it
took 21.206897447.

I will try avoiding --gc-sections -O3 on a followup patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234159 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-06 14:34:43 +00:00