Commit Graph

1638 Commits

Author SHA1 Message Date
Michael Liao 1a52d3d47b [cmake] Fix LLVM_USE_SPLIT_DWARF
Summary:
- Add `-gsplit-dwarf` as an option instead of a definition.
- Only add that option on compilers supporting dwarf splitting, such as clang
  and gcc.

Reviewers: echristo, pcc

Subscribers: mgorny, aprantl, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D75328
2020-02-28 23:05:55 -05:00
Simon Pilgrim d76fddf2f1 [cmake][msvc] Don't disable C4345 any more.
This shouldn't be relevant now that we just support VS2017+.
2020-02-28 13:57:20 +00:00
Hans Wennborg dcd89b3de6 Add llvm-cov to LLVM_TOOLCHAIN_TOOLS
See https://github.com/llvm/llvm-project/issues/141
2020-02-25 10:59:55 +01:00
Michael Kruse 6369b9bf31 [CMake] Default to static linking for subprojects.
Pass plugins introduced in D61446 do not support dynamic linking on
Windows, hence the option LLVM_${name_upper}_LINK_INTO_TOOLS can only
work being set to "ON". Currently, it defaults to "OFF" such that such
plugins are inoperable by default on Windows. Change the default for
subprojects to follow LLVM_ENABLE_PROJECTS.

Reviewed By: serge-sans-paille, MaskRay

Differential Revision: https://reviews.llvm.org/D72372
2020-02-24 11:54:08 -06:00
David Tenty 9e0c95572e [AIX] Improve 32/64-bit build configuration
Summary:
AIX supports both 32-bit and 64-bit environments (with 32-bit being the default). This patch improves support for building LLVM on AIX in both 32-bit and 64-bit mode.

  - Change host detection to return correct 32/64-bit triple as config_guess does not return the correct version on 64-bit. This can confuse JIT tests and other things that care about what the host triple is.
  - Remove manual setting of 64-bit flags on AIX. AIX provides OBJECT_MODE environment variable to enable the user to obtain a 64-bit development environment. CMake will properly set these flags provided the user sets the correct OBJECT_MODE before configuring and setting them manually will interfere with 32-bit builds.
  - Don't present the LLVM_BUILD_32_BITS option on AIX, users should use OBJECT_MODE when running CMake instead.

Reviewers: hubert.reinterpretcast, DiggerLin, stevewan

Reviewed By: DiggerLin, stevewan

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D74256
2020-02-20 15:41:00 -05:00
serge-sans-paille def62c7f65 [NFC] Remove ar/ranlib test noise during cmake step
At least on RHEL, ar outputs on stderr a message similar to

        .../bin/ar: creating t.a

Which creates noise during the cmake step. Get rid of it.
2020-02-20 11:26:26 +01:00
serge-sans-paille 3a0f6e699b Fix compiler extension in standalone mode
Use a dedicated cmake file to store the extension configured within LLVM. That
way, a standalone build of clang can load this cmake file and get all the
configured standalone extensions.

This patch is related to https://reviews.llvm.org/D74602

Differential Revision: https://reviews.llvm.org/D74757
2020-02-20 07:19:04 +01:00
Louis Dionne 84f80b1faa [CMake] Only detect the linker once in AddLLVM.cmake
Summary:
Otherwise, the build output contains a bunch of "Linker detection: <xxx>"
lines that are really redundant. We also make redundant calls to the
linker, although that is a smaller concern.

Reviewers: smeenai

Subscribers: mgorny, fedor.sergeev, jkorous, dexonsmith, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D68648
2020-02-19 13:53:38 -05:00
Cristian Adam d6fe253653 llvm: Use quotes around MSVC_DIA_SDK_DIR CMake variable
MSVC_DIA_SDK_DIR variable will point to a path which contains spaces,
and without quotes it will fail to configure the project.
2020-02-18 14:42:19 +02:00
Gokturk Yuksek cef85193b2 [CMake] CheckAtomic.cmake: catch false positives in RISC-V
The check for 'HAVE_CXX_ATOMICS_WITHOUT_LIB' may create false
positives in RISC-V. This is reproducible when compiling LLVM natively
using GCC on a rv64gc (rv64imafdgc) host. Due to the 'A' (atomic)
extension, g++ replaces calls to libatomic operations on the
std::atomic<int> type with the native hardware instructions. As a
result, the compilation succeeds and the build system thinks it
doesn't need to pass '-latomic'.

Improve the reliability of the 'HAVE_CXX_ATOMICS_WITHOUT_LIB' test in
two steps:

1. Force a pre-increment on x (++x), which should force a call to a
libatomic function;

2. Because step 1 would resolve the increment to 'amoadd.w.aq' under
the 'A' extension, force the same operation on sub-word types, for
which there is no hardware support.

Reviewers: jfb, hintonda, smeenai, mgorny, JDevlieghere, jyknight
Reviewed By: jfb
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68964
2020-02-17 18:53:41 +00:00
Luís Marques f128f442a3 [CMake] Fix setting result of libatomic check for MSVC
We were skipping the libatomic requirement check for MSVC, but not setting
the corresponding variable, HAVE_CXX_ATOMICS_WITHOUT_LIB. D69869 seems to
have to failed to build on ARM MSVC because of that, and was reverted. This
should probably fix the issue. The plan is to check the result of the build
bots and then submit a more thoroughly refactored version for review.
2020-02-17 15:32:28 +00:00
serge-sans-paille 87dac7da68 Fix standalone build interaction with compiler extension
As suggested in https://github.com/llvm/llvm-project/issues/120, don't try to
generate the extension file from clang, only do the linking step.

Fixes the regression introduced in D74464 when running cmake inside the clang
directory.

Differential Revision: https://reviews.llvm.org/D74602
2020-02-15 11:10:51 +01:00
Nico Weber 09153ab9d2 [windows] Add /Gw to compiler flags
This is like -fdata-sections, and it's not part of /O2 by default for some reason.

In the cmake build, reduces the size of clang.exe from 70,358,016 bytes to 69,982,720 bytes.

clang-format.exe goes from 3,703,296 bytes to 3,331,072 bytes.

Differential Revision: https://reviews.llvm.org/D74573
2020-02-14 15:15:00 -05:00
Luís Marques de1c2877a9 llvm/cmake/config.guess: add support for riscv32 and riscv64
Summary: LLVM configuration fails with 'unable to guess system type' on riscv64.
Add support for detecting riscv32 and riscv64 systems.

Patch by Gokturk Yuksek (gokturk)
Reviewers: erichkeane, rengolin, mgorny, aaron.ballman, beanz, luismarques
Reviewed By: luismarques
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D68899
2020-02-14 11:53:51 +00:00
Fangrui Song 04b4866ba4 [CMake] Delete llvm_add_go_executable and a reference to TARGET llvm-go
llvm-go was deleted by 102814b4d3.
2020-02-11 20:55:50 -08:00
Petr Hosek fdfdd275fd [CMake] Use LLVM tools external project build where possible
This reduces the reliance on host tools and makes the build more
hermetic. Some of the runtimes already assume that certain tools are
always available, for example libc++ and libc++abi archive merging
relies on ar to extract files out of the archive, even on Darwin.

Differential Revision: https://reviews.llvm.org/D74107
2020-02-07 13:43:30 -08:00
Jonas Devlieghere 4fe839ef3a [CMake] Rename EXCLUDE_FROM_ALL and make it an argument to add_lit_testsuite
EXCLUDE_FROM_ALL means something else for add_lit_testsuite as it does
for something like add_executable. Distinguish between the two by
renaming the variable and making it an argument to add_lit_testsuite.

Differential revision: https://reviews.llvm.org/D74168
2020-02-06 15:33:18 -08:00
Saleem Abdulrasool a43bf80788 build: attempt to repair the build
The change in 9b84dabc5f uses a newer
syntax which not all the builders support.  Use an explicit `OR` over
the languages instead to repair the builders.
2020-02-02 16:18:00 -08:00
Saleem Abdulrasool 9b84dabc5f build: only pass -UNDEBUG when compiling C/C++
This patch limits adding -UNDEBUG to C and C++ files so that projects
can include files compiled with compilers that don't recognize this
argument (Swift e.g.).

add_definitions does not expand generators, hence the change from
add_definitions to add_compile_options.

Patch by Evan Wilde!
2020-02-02 13:19:23 -08:00
Mehdi Amini 5f940220bf MSVC Buggy version detection: turn pre-processor error into CMake configuration time check
This allows consumer to override in a cleaner way while still prevent
them from hitting bug without knowing they run an unsupported
configuration.

Recommit after fix by Christopher Tetreault to add parens and ${} to
cmake check to work around CMake configure time "unknown arguments
specified" issue

Differential Revision: https://reviews.llvm.org/D73677
Differential Revision: https://reviews.llvm.org/D73751
2020-01-31 00:11:55 +00:00
Mehdi Amini 1e417ba2d4 Revert "MSVC Buggy version detection: turn pre-processor error into CMake configuration time check"
This reverts commit b4fac78246.
It broke the MSVC bot
2020-01-30 23:38:36 +00:00
Mehdi Amini b4fac78246 MSVC Buggy version detection: turn pre-processor error into CMake configuration time check
This allows consumer to override in a cleaner way while still prevent
them from hitting bug without knowing they run an unsupported
configuration.

Differential Revision: https://reviews.llvm.org/D73677
2020-01-30 22:17:21 +00:00
Petr Hosek 56b7f595d2 [CMake] Set ASM compiler for external projects
This is necessary on Windows, otherwise CMake fails. It's not
conventional on Windows to use cl for assembly (you'd use ml or ml64
instead), but CMake has a separate ASM_MASM mode for that, and clang-cl
works fine for assembly so we'll use that on Windows for consistency.

Differential Revision: https://reviews.llvm.org/D73522
2020-01-28 11:39:21 -08:00
Luke Drummond 482e890d1f [tablegen] Emit string literals instead of char arrays
This changes the generated (Instr|Asm|Reg|Regclass)Name tables from this
form:
    extern const char HexagonInstrNameData[] = {
      /* 0 */ 'G', '_', 'F', 'L', 'O', 'G', '1', '0', 0,
      /* 9 */ 'E', 'N', 'D', 'L', 'O', 'O', 'P', '0', 0,
      /* 18 */ 'V', '6', '_', 'v', 'd', 'd', '0', 0,
      /* 26 */ 'P', 'S', '_', 'v', 'd', 'd', '0', 0,
      [...]
    };

...to this:

    extern const char HexagonInstrNameData[] = {
      /* 0 */ "G_FLOG10\0"
      /* 9 */ "ENDLOOP0\0"
      /* 18 */ "V6_vdd0\0"
      /* 26 */ "PS_vdd0\0"
      [...]
    };

This should make debugging and exploration a lot easier for mortals,
while providing a significant compile-time reduction for common compilers.

To avoid issues with low implementation limits, this is disabled by
default for visual studio.

To force output one way or the other, pass
`--long-string-literals=<bool>` to `tablegen`

Reviewers: mstorsjo, rnk

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D73044

A variation of this patch was originally committed in ce23515f5a and
then reverted in e464b31c due to build failures.
2020-01-27 18:22:25 +00:00
Sergej Jaskiewicz e464b31c15 Revert "[tablegen] Emit string literals instead of char arrays"
This reverts commit ce23515f5a.

That commit broke some builds on Windows:
http://lab.llvm.org:8011/builders/clang-x64-windows-msvc/builds/13870
2020-01-23 18:22:22 +03:00
Luke Drummond ce23515f5a [tablegen] Emit string literals instead of char arrays
This changes the generated (Instr|Asm|Reg|Regclass)Name tables from this
form:
    extern const char HexagonInstrNameData[] = {
      /* 0 */ 'G', '_', 'F', 'L', 'O', 'G', '1', '0', 0,
      /* 9 */ 'E', 'N', 'D', 'L', 'O', 'O', 'P', '0', 0,
      /* 18 */ 'V', '6', '_', 'v', 'd', 'd', '0', 0,
      /* 26 */ 'P', 'S', '_', 'v', 'd', 'd', '0', 0,
      [...]
    };

...to this:

    extern const char HexagonInstrNameData[] = {
      /* 0 */ "G_FLOG10\0"
      /* 9 */ "ENDLOOP0\0"
      /* 18 */ "V6_vdd0\0"
      /* 26 */ "PS_vdd0\0"
      [...]
    };

This should make debugging and exploration a lot easier for mortals,
while providing a significant compile-time reduction for common compilers.

To avoid issues with low implementation limits, this is disabled by
default for visual studio or when cross-compiling.

To force output one way or the other, pass
`--long-string-literals=<bool>` to `tablegen`

Reviewers: mstorsjo, rnk

Subscribers: llvm-commit

Differential Revision: https://reviews.llvm.org/D73044
2020-01-23 13:57:20 +00:00
Nico Weber 1d568bf960 Remove AllTargetsAsmPrinters
It's been an empty target since r360498 and friends
(`git log --grep='Move InstPrinter files to MCTargetDesc.' llvm/lib/Target`),
but due to hwo the way these targets are structured it was silently
an empty target without anyone noticing.

No behavior change.
2020-01-17 19:04:06 -05:00
Nico Weber fb5fafb23c Make LLVM_APPEND_VC_REV=OFF affect clang, lld, and lldb as well.
When LLVM_APPEND_VC_REV=OFF is set, the current git hash is no
longer embedded into binaries (mostly for --version output).
Without it, most binaries need to relink after every single
commit, even if they didn't change otherwise (due to, say,
a documentation-only commit).

LLVM_APPEND_VC_REV is ON by default, so this doesn't change the
default behavior of anything.

With this, all clients of GenerateVersionFromVCS.cmake honor
LLVM_APPEND_VC_REV.

Differential Revision: https://reviews.llvm.org/D72855
2020-01-16 19:04:08 -05:00
Hubert Tong e429f24ed8 [CMake] Enable -qfuncsect when building with IBM XL
Summary:
The IBM XL compiler uses `-qfuncsect` for `-ffunction-sections`.

The comment about sanitizers and `-f[no-]function-sections` is corrected
also, as it is pertinent to this patch.

The sanitizer-related use of `-fno-function-sections` is associated with
powerpc64le, a target for which there is an IBM XL compiler, so that use
is updated in this patch to apply `-qnofuncsect` in case a build using
the XL compiler is viable on that platform.

This patch has been verified with the XL compiler on AIX only.

Reviewers: daltenty, stevewan

Reviewed By: daltenty

Subscribers: mgorny, steven.zhang, #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D72335
2020-01-15 10:45:50 -05:00
serge-sans-paille 346de9b672 Fix several issues with compiler extensions
- Update documentation now that the move to monorepo has been made
- Do not tie compiler extension testing to LLVM_BUILD_EXAMPLES
- No need to specify LLVM libraries for plugins
- Add NO_MODULE option to match Polly specific requirements (i.e. building the
  module *and* linking it statically)
- Issue a warning when building the compiler extension with
  LLVM_BYE_LINK_INTO_TOOLS=ON, as it modifies the behavior of clang, which only
  makes sense for testing purpose.

Still mark llvm/test/Feature/load_extension.ll as XFAIL because of a
ManagedStatic dependency that's going to be fixed in a seperate commit.

Differential Revision: https://reviews.llvm.org/D72327
2020-01-10 10:10:20 +01:00
Michael Kruse b6503901f2 [cmake] Use relative cmake binary dir for processing pass plugins.
https://reviews.llvm.org/D61446 introduced a new function to process
pass plugins that used CMAKE_BINARY_DIR. This is problematic when LLVM
is a subproject. Instead use LLVM_BINARY_DIR to get the right relative
directory for cmake.

Patch by Alan Baker <alanbaker@google.com>

Reviewed By: Meinersbur

Differential Revision: https://reviews.llvm.org/D72109
2020-01-07 20:42:35 +01:00
Petr Hosek 71a2a62163 [CMake] Pass symlink dependency to add_llvm_install_targets explicitly
The install-${name}-stripped targets don't strip when ${name} is being
symlinked, e.g. llvm-ar or llvm-objcopy. The problem is that
llvm_install_symlink passes install-${dest} as a dependency of
install-${name}, e.g. install-llvm-ar becomes a dependency of both
install-llvm-ranlib and install-llvm-ranlib-stripped. What this means is
that when installing a distribution that contains both llvm-ar and
llvm-ranlib is that first the stripped version of llvm-ar is installed
(by the install-llvm-ar-stripped target) and then it's overwritten by an
unstripped version of llvm-ar bnecause install-llvm-ranlib-stripped has
install-llvm-ranlib as a dependency as mentioned earlier. To avoid this
issue, rather than passing the install-${dest} as dependency, we
introduce a new argument to add_llvm_install_targets for symlink target
which expands it into an appropriate dependency, i.e. install-${dest}
for install-${name} target and install-${dest}-stripped for
install-${name}-stripped.

Differential Revision: https://reviews.llvm.org/D71951
2020-01-06 14:51:32 -08:00
Florian Hahn 4c6c4e2fce [cmake] Remove install from add_llvm_example_library.
This should fix
http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast/builds/30086
2020-01-04 17:12:24 +00:00
Florian Hahn 0bb22b91ea Re-apply "[Examples] Add IRTransformations directory to examples."
This reverts commit 19fd8925a4.

Should include a fix for PR44197.
2020-01-04 15:47:23 +00:00
Saleem Abdulrasool abb0075306 build: reduce CMake handling for zlib
Rather than handling zlib handling manually, use `find_package` from CMake
to find zlib properly. Use this to normalize the `LLVM_ENABLE_ZLIB`,
`HAVE_ZLIB`, `HAVE_ZLIB_H`. Furthermore, require zlib if `LLVM_ENABLE_ZLIB` is
set to `YES`, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.

This restores 68a235d07f,
e6c7ed6d21.  The problem with the windows
bot is a need for clearing the cache.
2020-01-02 11:19:12 -08:00
James Henderson e406cca5f9 Revert "build: reduce CMake handling for zlib"
This reverts commit 68a235d07f.

This commit broke the clang-x64-windows-msvc build bot and a follow-up
commit did not fix it. Reverting to fix the bot.
2020-01-02 16:02:10 +00:00
James Henderson 34397b7560 Revert "build: make `LLVM_ENABLE_ZLIB` a tri-bool for users"
This reverts commit e6c7ed6d21.

This commit was an attempt to fix the build bots, but it still left the
clang-x64-windows-msvc bot in a broken state.
2020-01-02 16:02:09 +00:00
serge_sans_paille 24ab9b537e Generalize the pass registration mechanism used by Polly to any third-party tool
There's quite a lot of references to Polly in the LLVM CMake codebase. However
the registration pattern used by Polly could be useful to other external
projects: thanks to that mechanism it would be possible to develop LLVM
extension without touching the LLVM code base.

This patch has two effects:

1. Remove all code specific to Polly in the llvm/clang codebase, replaicing it
   with a generic mechanism

2. Provide a generic mechanism to register compiler extensions.

A compiler extension is similar to a pass plugin, with the notable difference
that the compiler extension can be configured to be built dynamically (like
plugins) or statically (like regular passes).

As a result, people willing to add extra passes to clang/opt can do it using a
separate code repo, but still have their pass be linked in clang/opt as built-in
passes.

Differential Revision: https://reviews.llvm.org/D61446
2020-01-02 16:45:31 +01:00
Saleem Abdulrasool e6c7ed6d21 build: make `LLVM_ENABLE_ZLIB` a tri-bool for users
Treat the flag `LLVM_ENABLE_ZLIB` as a tri-bool, `FORCE_ON` being `ON`,
and `ON` being an auto-detect.  This is needed as many of the builders
enable the flag without having zlib available.
2020-01-01 17:02:16 -08:00
Saleem Abdulrasool 68a235d07f build: reduce CMake handling for zlib
Rather than handling zlib handling manually, use `find_package` from CMake
to find zlib properly. Use this to normalize the `LLVM_ENABLE_ZLIB`,
`HAVE_ZLIB`, `HAVE_ZLIB_H`. Furthermore, require zlib if `LLVM_ENABLE_ZLIB` is
set to `YES`, which requires the distributor to explicitly select whether
zlib is enabled or not. This simplifies the CMake handling and usage in
the rest of the tooling.
2020-01-01 16:36:59 -08:00
Xin-Xin Wang f5bbe387e8 [llvm] Add llvm-lipo dependency to runtimes
Summary: Currently, llvm-lipo is not specified as a dependency, but it is needed when building Darwin-x86_64 runtimes, so I'm adding it to the dependencies lists.

Reviewers: alexshap, beanz, phosek, compnerd, smeenai, mtrent, plotfi, xiaobai

Reviewed By: phosek, smeenai

Subscribers: smeenai, mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D71429
2019-12-16 16:05:52 -08:00
David Tenty 70d14255df Don't call export_symbols.py with duplicate libs
Summary:
export_symbols.py discards duplicate symbols, assuming they have public definitions, so if we end
up calling it with duplicate libraries we will end up with an inaccurate export list.

Reviewers: jasonliu, stevewan, john.brawn

Reviewed By: john.brawn

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70918
2019-12-11 17:23:31 -05:00
Pavel Labath 385ba6065a [cmake] Disable GCC 9's -Wredundant-move
Summary:
This new warning (enabled by -Wextra) fires when a std::move is
redundant, as the default compiler behavior would be to select a move
operation anyway (e.g., when returning a local variable). Unlike
-Wpessimizing-move, it has no performance impact -- it just adds noise.

Currently llvm has about 1500 of these warnings. Unfortunately, the
suggested fix -- removing std::move -- does not work because of some
older compilers we still support. Specifically clang<=3.8 will not use a
move operation if an implicit conversion is needed (Core issue 1579). In
code like "A f(ConvertibleToA a) { return a; }" it will prefer a copy,
or fail to compile if a copy is not possible.

This patch disables that warning to get a meaningful signal out of a GCC
9 build.

Reviewers: rnk, aaron.ballman, xbolva00

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70963
2019-12-09 11:01:50 +01:00
Alex Lorenz ad871e4295 [compiler-rt] Disable fuzzer large.test when LLVM_ENABLE_EXPENSIVE_CHECKS=ON
This test is timing out on Green Dragon http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-expensive/
and looks like it's not executed on other bots with expensive checks
enabled
http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-ubuntu
http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win

The test times out at the C++ source file takes too long to build (2+ hours on my machine), as
clang spends a lot of time in IR/MIR verifiers.

Differential Revision: https://reviews.llvm.org/D70024
2019-12-03 14:37:37 -08:00
Saleem Abdulrasool abe8de29c4 Revert "Temporarily revert "build: avoid hardcoding the libxml2 library name""
This reverts commit 2e75681b55.  Restore
the clean up change.  The underlying CMake issue was resolved in
372ad32734.
2019-12-03 09:27:14 -08:00
Eric Christopher 2e75681b55 Temporarily revert "build: avoid hardcoding the libxml2 library name"
as it breaks uses of llvm-config --system-libs and the follow-on commit
"build: avoid cached literals being linked against"

This reverts commits 340e7c0b77 and
340e7c0b77.
2019-12-02 14:30:16 -08:00
Saleem Abdulrasool 340e7c0b77 build: avoid hardcoding the libxml2 library name
FindLibXml2 will set the LIBXML2_LIBRARIES variable to the libraries that
we must link against. This will be an empty string if libxml2 is not
found. Avoid hardcoding the library name as xml2 in the configuration.
Simplify the usage in the WindowsManifest library.
2019-11-27 12:36:25 -08:00
Amy Kwan c84c62c50a [CMake] Fix LLVM build non-determinism on RHEL
On RHEL, the OS tooling (ar, ranlib) is not deterministic by default.
Therefore, we cannot get bit-for-bit identical builds.

The goal of this patch is that it adds the flags required to force determinism.

Differential Revision: https://reviews.llvm.org/D64817
2019-11-21 23:18:11 -06:00
Tom Stellard ab411801b8 [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries"
Summary:
Most libraries are defined in the lib/ directory but there are also a
few libraries defined in tools/ e.g. libLLVM, libLTO.  I'm defining
"Component Libraries" as libraries defined in lib/ that may be included in
libLLVM.so.  Explicitly marking the libraries in lib/ as component
libraries allows us to remove some fragile checks that attempt to
differentiate between lib/ libraries and tools/ libraires:

1. In tools/llvm-shlib, because
llvm_map_components_to_libnames(LIB_NAMES "all") returned a list of
all libraries defined in the whole project, there was custom code
needed to filter out libraries defined in tools/, none of which should
be included in libLLVM.so.  This code assumed that any library
defined as static was from lib/ and everything else should be
excluded.

With this change, llvm_map_components_to_libnames(LIB_NAMES, "all")
only returns libraries that have been added to the LLVM_COMPONENT_LIBS
global cmake property, so this custom filtering logic can be removed.
Doing this also fixes the build with BUILD_SHARED_LIBS=ON
and LLVM_BUILD_LLVM_DYLIB=ON.

2. There was some code in llvm_add_library that assumed that
libraries defined in lib/ would not have LLVM_LINK_COMPONENTS or
ARG_LINK_COMPONENTS set.  This is only true because libraries
defined lib lib/ use LLVMBuild.txt and don't set these values.
This code has been fixed now to check if the library has been
explicitly marked as a component library, which should now make it
easier to remove LLVMBuild at some point in the future.

I have tested this patch on Windows, MacOS and Linux with release builds
and the following combinations of CMake options:

- "" (No options)
- -DLLVM_BUILD_LLVM_DYLIB=ON
- -DLLVM_LINK_LLVM_DYLIB=ON
- -DBUILD_SHARED_LIBS=ON
- -DBUILD_SHARED_LIBS=ON -DLLVM_BUILD_LLVM_DYLIB=ON
- -DBUILD_SHARED_LIBS=ON -DLLVM_LINK_LLVM_DYLIB=ON

Reviewers: beanz, smeenai, compnerd, phosek

Reviewed By: beanz

Subscribers: wuzish, jholewinski, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, mgorny, mehdi_amini, sbc100, jgravelle-google, hiraditya, aheejin, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, steven_wu, rogfer01, MartinMosbeck, brucehoult, the_o, dexonsmith, PkmX, jocewei, jsji, dang, Jim, lenary, s.egerton, pzheng, sameer.abuasal, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70179
2019-11-21 10:48:08 -08:00
Eric Schweitz 86c66cea21 Extends the tblgen macro to allow mlir-tblgen to be installed
The mlir-tblgen tool was not getting installed.  This change allows
the MLIR project to be installed along with llvm-tblgen.

Differential Revision: https://reviews.llvm.org/D69824
2019-11-19 19:28:58 -08:00
Kevin Petit e73177ea5f Fix use of add_llvm_tool in projects that build no targets
Projects that set LLVM_TARGETS_TO_BUILD to an empty list
can't use add_llvm_tool (and probably other macros).

Here's the error that this change fixes:

list sub-command REMOVE_ITEM requires two or more arguments.

https://reviews.llvm.org/D70167

Signed-off-by: Kevin Petit <kevin.petit@arm.com>
2019-11-14 10:53:46 +00:00
Tom Stellard 80ed7f8397 [cmake] Remove confusing condition argument from else() NFC
Summary:
This makes it look like an elseif and also the variable referenced
in the condition was removed from this function in r366622.

Reviewers: dsanders, beanz, smeenai, compnerd, phosek

Reviewed By: beanz

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70159
2019-11-13 16:37:04 -08:00
David Tenty 8b2b2c08d9 Don't set LLVM_NO_DEAD_STRIP on AIX
Summary:
when building plugins, as AIX has symbols in it's standard library that
must be garbage collected or we will see link errors. Export lists will
handle this instead on AIX.

Reviewers: stevewan, sfertile, jasonliu, xingxue, DiggerLin

Reviewed By: DiggerLin

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70130
2019-11-13 11:59:47 -05:00
Tom Stellard caad2170ae [cmake] Remove SVN support from VersionFromVCS.cmake
Reviewers: phosek

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69682
2019-11-08 09:59:42 -08:00
Russell Gallop 0a8bd77e77 [cmake] Enable thin lto cache when building with lld-link
This was enabled for other platforms. Added option for Windows/lld-link.

Differential Revision: https://reviews.llvm.org/D69941
2019-11-08 10:47:29 +00:00
David Tenty 6740a88dc1 [NFC] Add SUPPORT_PLUGINS to add_llvm_executable()
Summary:
this allows us to move logic about when it is appropriate set
LLVM_NO_DEAD_STRIP out of each tool and into add_llvm_executable,
which will enable future platform specific handling.

This is a follow on to the reverted D69356

Reviewers: hubert.reinterpretcast, beanz, lhames

Reviewed By: beanz

Subscribers: mgorny, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D69638
2019-11-06 14:32:35 -05:00
Sam Clegg 1cce82eae8 Add more binutils tools to LLVM_INSTALL_TOOLCHAIN_ONLY target
Also add the aliases for these tools so that
LLVM_INSTALL_BINUTILS_SYMLINKS and LLVM_INSTALL_TOOLCHAIN_ONLY can work
together.

Differential Revision: https://reviews.llvm.org/D69635
2019-11-04 14:11:23 -08:00
David Tenty 23df0c783c Revert "[NFC] Rename LLVM_NO_DEAD_STRIP"
This reverts commit 11c2a85db8.
2019-10-30 14:56:20 -04:00
Saleem Abdulrasool 2724d9e129 build: remove `LLVM_CXX_STD` extension point
This extension point is not needed. Provide the equivalent option
through `CMAKE_CXX_STANDARD` which mirrors the previous extension point. Rely on
CMake to provide the check for the compiler instead.
2019-10-25 11:51:47 -07:00
David Tenty 11c2a85db8 [NFC] Rename LLVM_NO_DEAD_STRIP
Summary:
The variable LLVM_NO_DEAD_STRIP is set in LLVM cmake files when building executables that might make use of plugins .The name of the variable does not convey the actual intended usage (i.e. for use with tools that have plugins), just what the eventual effect of setting in on some (i.e. not garbage collecting unused symbols).

This patch renames it to LLVM_SUPPORT_PLUGINS to convey the intended usage, which will allow subsequent patches to add behavior to support that in different ways without confusion about whether it will do on, for example, non-gnu platforms.

Reviewers: hubert.reinterpretcast, stevewan

Reviewed By: stevewan

Subscribers: cfe-commits, mgorny, llvm-commits

Tags: #llvm, #clang

Differential Revision: https://reviews.llvm.org/D69356
2019-10-25 09:32:00 -04:00
Martin Storsjo 3fe1c88bb2 [CMake] [WinMsvc] Look for includes and libs in ${MSVC_BASE}/atlmfc
This is necessary if building with the DIA SDK enabled.

Differential Revision: https://reviews.llvm.org/D69240

llvm-svn: 375486
2019-10-22 06:36:27 +00:00
Martin Storsjo e659fff2fb [CMake] Allow overriding MSVC_DIA_SDK_DIR via CMake
This eases using it in cross-msvc setups.

Differential Revision: https://reviews.llvm.org/D69239

llvm-svn: 375485
2019-10-22 06:36:21 +00:00
Shoaib Meenai c9499264ec [cmake] Pass external project source directories to sub-configures
We're passing LLVM_EXTERNAL_PROJECTS to cross-compilation configures, so
we also need to pass the source directories of those projects, otherwise
configuration can fail from not finding them.

Differential Revision: https://reviews.llvm.org/D69076

llvm-svn: 375157
2019-10-17 19:24:58 +00:00
Michal Gorny da2a29a17c [llvm] [ocaml] Support linking against dylib
Support linking OCaml modules against LLVM dylib when requested,
rather than against static libs that might not be installed at all.

Differential Revision: https://reviews.llvm.org/D68452

llvm-svn: 374556
2019-10-11 14:32:43 +00:00
Nico Weber 204623e05c Reland r349624: Let TableGen write output only if it changed, instead of doing so in cmake
Move the write-if-changed logic behind a flag and don't pass it
with the MSVC generator. msbuild doesn't have a restat optimization,
so not doing write-if-change there doesn't have a cost, and it
should fix whatever causes PR43385.

llvm-svn: 373664
2019-10-03 21:22:28 +00:00
Michal Gorny c2c419ca78 [llvm] [cmake] Add install targets for missing distribution components
Add install targets as necessary to include all files normally installed
in LLVM_DISTRIBUTION_COMPONENTS.  This includes targets for Sphinx docs,
opt-viewer Python modules and TableGens.

Differential Revision: https://reviews.llvm.org/D68339

llvm-svn: 373482
2019-10-02 16:06:50 +00:00
Simon Pilgrim 9eb2bd6b8d Revert rL349624 : Let TableGen write output only if it changed, instead of doing so in cmake, attempt 2
Differential Revision: https://reviews.llvm.org/D55842
-----------------
As discussed on PR43385 this is causing Visual Studio msbuilds to perpetually rebuild all tablegen generated files

llvm-svn: 373338
2019-10-01 13:39:43 +00:00
Saleem Abdulrasool 9567940904 build: serialise `LLVM_ENABLE_UNWIND_TABLES` into LLVMConfig
Serialize the value of the configuration option into the configuration so that
builds which integrate LLVM can identify the value of the flag that was used to
build the libraries.  This is intended to be used by Swift to control tests
which rely on the unwind information.

llvm-svn: 373253
2019-09-30 20:03:59 +00:00
Justin Bogner a80048f3df Use double quotes for LDFLAGS in -DLLVM_BUILD_INSTRUMENTED_COVERAGE
Mimics the changes in r372209 to handle the change of quotes in
r372226. Probably isn't sufficient for windows, but unbreaks the cmake
flag at least.

llvm-svn: 372791
2019-09-24 23:56:22 +00:00
Simon Pilgrim e53a724dd0 [llvm] [cmake] Add possibility to use ChooseMSVCCRT.cmake when include LLVM library
Modify LLVMConfig to produce LLVM_USE_CRT variables in build-directory. It helps to set the same compiler debug options like in builded library.

Committed on behalf of @igorban (Igor)

Differential Revision: https://reviews.llvm.org/D67175

llvm-svn: 372610
2019-09-23 14:11:48 +00:00
Russell Gallop a84b200e60 [cmake] Changes to get Windows self-host working with PGO
Fixes quoting of profile arguments to work on Windows
Suppresses adding profile arguments to linker flags when using lld-link
Avoids -fprofile-instr-use being added to rc.exe flags
Removes duplicated adding of -fprofile-instr-use to linker flags (since
r355541)
Move handling LLVM_PROFDATA_FILE to HandleLLVMOptions.cmake

Differential Revision: https://reviews.llvm.org/D62063

llvm-svn: 372209
2019-09-18 09:43:13 +00:00
David Zarzycki fef1cb1c97 [CMake] Don't pass all LLVM_COMPILE_FLAGS to the C compiler
GCC (unlike clang!) warns about C++ flags when compiling C.

https://reviews.llvm.org/D67171

llvm-svn: 371521
2019-09-10 14:19:52 +00:00
David Zarzycki 412a8d7a83 [CMake] LLVM_COMPILE_FLAGS also applies to C files
LLVM_COMPILE_FLAGS also applies to C files, otherwise tuning flags,
etc. won't be picked up.

https://reviews.llvm.org/D67171

llvm-svn: 371173
2019-09-06 07:12:36 +00:00
Simon Pilgrim d3e3c11f4b [cmake] Remove MSVC C4180 override
Tested on VS2017 and VS2019 llvm/clang builds with WX enabled - its no longer necessary to disable this warning.

Differential Revision: https://reviews.llvm.org/D67103

llvm-svn: 370871
2019-09-04 10:26:39 +00:00
Simon Pilgrim aae9972a36 [cmake] Remove MSVC C4258 override
Tested on VS2017 and VS2019 llvm/clang builds with WX enabled - its no longer necessary to disable this warning.

Differential Revision: https://reviews.llvm.org/D67047

llvm-svn: 370866
2019-09-04 10:01:31 +00:00
Simon Pilgrim af7f1a1959 [cmake] Improve comment describing the C4245 warning. NFCI.
llvm-svn: 370772
2019-09-03 16:11:37 +00:00
Jonas Devlieghere d8c20b9443 [lit] Only set DYLD_LIBRARY_PATH for shared builds
In r370135 I committed a temporary workaround for the sanitized bot to
not set (DY)LD_LIBRARY_PATH when (DY)LD_INSERT_LIBRARIES was set.
Setting (DY)LD_LIBRARY_PATH is only necessary for (standalone)
shared-library builds, so a better solution is to only set the
environment variable when necessary.

Differential revision: https://reviews.llvm.org/D67012

llvm-svn: 370549
2019-08-30 23:16:02 +00:00
Simon Pilgrim ed72e0ecf8 [CMake] Update C4324 MSVC warning comment to explain its still broken at VS2019
As promised, I've updated the comment for the C4324 MSVC warning that was re-disabled at rL367409 / rG8f823e63e3edf87ab029ba32b68f3eb5d2f392b5 to put it in terms of currently supported VS versions

llvm-svn: 369368
2019-08-20 11:20:05 +00:00
Hubert Tong c313944da6 [cmake] Move blocks out of redundant else( MSVC ); NFC
Address post-commit comment on D66256 regarding the `else( MSVC )` block
containing only blocks guarded with `LLVM_COMPILER_IS_GCC_COMPATIBLE`,
which would imply `NOT MSVC`.

llvm-svn: 369221
2019-08-18 22:02:24 +00:00
Hubert Tong 67af3fa7ca [AIX] For XL, pick GCC-compatible std & default warning options
Summary:
LLVM now requires C++14. For IBM XL compilers with C++14 support, this
can be done with the GCC-style options. The relevant block in the CMake
file is split up into smaller parts as part of this patch to allow the
common cases to be shared.

Reviewers: jfb, jasonliu, daltenty, xingxue

Reviewed By: jfb, xingxue

Subscribers: mstorsjo, mgorny, dexonsmith, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66256

llvm-svn: 369058
2019-08-15 22:23:53 +00:00
Justin Bogner e7c220c0ef [cmake] install_symlink should obey DESTDIR unconditionally
Setting DESTDIR was erroneously buried under a condition here - if
it's set it should always be used.

llvm-svn: 369011
2019-08-15 15:36:13 +00:00
Erich Keane 0e85f18ded Add support in CMake to statically link the C++ standard library.
It is sometimes useful to have the C++ standard library linked into the
assembly when compiling clang, particularly when distributing a compiler
onto systems that don't have a copy of stdlibc++ or libc++ installed.

This functionality should work with either GCC or Clang as the host
compiler, though statically linking libc++ (as may be required for
licensing purposes) is only possible if the host compiler is Clang with
a copy of libc++ available.

Differential Revision: https://reviews.llvm.org/D65603

llvm-svn: 368907
2019-08-14 19:55:59 +00:00
Chris Bieneman a8e070366a [CMake] Fix cache invalidation of LLVM_CXX_STD
This cleans up fallout from https://reviews.llvm.org/D66195.

llvm-svn: 368897
2019-08-14 18:26:37 +00:00
JF Bastien 3f9d044686 Match if / elseif properly
My last commit fumbled it.

llvm-svn: 368892
2019-08-14 18:01:11 +00:00
JF Bastien 12f5a2807e Remove now useless C++1y flag
As of D66195 we support C++14 by default.

llvm-svn: 368890
2019-08-14 17:57:20 +00:00
JF Bastien b13c8ca9eb Move to C++14
Summary:
I just bumped the minimum compiler versions to support C++14 in D66188.

Following [our process](http://llvm.org/docs/DeveloperPolicy.html#toolchain) and [our previous agreement](http://lists.llvm.org/pipermail/llvm-dev/2019-January/129452.html), I'm now officially bumping the C++ version to 14 and updating the documentation.

Subscribers: mgorny, jkorous, dexonsmith, llvm-commits, chandlerc, thakis, EricWF, jyknight, lhames, JDevlieghere

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66195

llvm-svn: 368887
2019-08-14 17:39:07 +00:00
JF Bastien 20644a9540 Remove minimum toolchain soft-error
Summary:
Back in January I changed the minimum toolchain version required to build clang
and LLVM: D57264. Since then we've release LLVM 8, following
[our process](http://llvm.org/docs/DeveloperPolicy.html#toolchain)
it's therefore now a good time to remove the soft-error and officially deprecate
older toolchains. I tried this out last Tursday night to see if any bots
complained, and I saw no complaints. I also manually audited bots and didn't see
any bot that should break, but their toolchain information is unreliable and
some bots are offline.

Once this patch stick we'll move to C++14 as we've
[already agreed](http://lists.llvm.org/pipermail/llvm-dev/2019-January/129452.html).

Subscribers: mgorny, jkorous, dexonsmith, llvm-commits, EricWF, thakis, chandlerc

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66188

llvm-svn: 368799
2019-08-14 04:30:51 +00:00
Haibo Huang 5bb4518116 Fix rpath for MacOS/iOS
Summary: libs can be installed to ../lib64.

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65972

llvm-svn: 368398
2019-08-09 06:05:32 +00:00
JF Bastien 0c0457ebcb Revert "Temporarily bump minimum compiler version"
It's been in for more than 30 min and no bots have complained. Let's see if some
slow ones catch up. I'll do another manual pass on bots later (in case some that
were down are back up), and then turn this on permanently through a regular
review.

llvm-svn: 368253
2019-08-08 05:47:59 +00:00
JF Bastien 82ac3acade Temporarily bump minimum compiler version
It's pretty hard to find a reliable list of which bots use which compiler version... so I'm going to commit this change which allows us to mandate the compilers required for C++14. This bump is what we've already agreed to do, so I'll use the list of failures to figure out which bots need to bump their compiler version. I'll revert the change in a few minutes.

The last discussion of this is here: http://lists.llvm.org/pipermail/llvm-dev/2019-August/134360.html

llvm-svn: 368252
2019-08-08 05:12:20 +00:00
Galina Kistanova b4e5f016c4 Append an executable suffix to the toolchain tool paths on Windows platform.
Append a default CMake suffix (CMAKE_EXECUTABLE_SUFFIX) for the build host to the toolchain tool path when adding a LLVM external project.
The tool binary files should contain .exe suffix to run them properly on Windows platform when building the projects.

Patch by Vlad Vereschaka.

Differential Revision: https://reviews.llvm.org/D65824

llvm-svn: 368121
2019-08-07 03:19:40 +00:00
Chris Bieneman 96655b32d8 Add order-dependencies to object libraries
Summary: If you are generating an object library that depends on table-gen generate sources, you need the object library to depend on the tablgen target. Currently llvm_add_library doesn't add dependencies for object libraries at all, which is clearly problematic.

Reviewers: compnerd, hintonda, smeenai

Reviewed By: smeenai

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65818

llvm-svn: 368074
2019-08-06 19:41:23 +00:00
Hubert Tong 51b0032ff7 [CMake] Add mapping for IBM XL -qnoeh and -qnortti
Summary:
This patch maps in the `-qnoeh` and `-qnortti` options for building with
IBM XL compilers.

Reviewers: daltenty, xingxue, jasonliu

Reviewed By: daltenty

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65669

llvm-svn: 368050
2019-08-06 15:08:13 +00:00
Chris Bieneman cd26b1ae2c NFC. Documenting Native tablegen dependency
Adding documentation explaining why this dependency is required and should not be removed again.

llvm-svn: 367896
2019-08-05 18:00:55 +00:00
Chris Bieneman 3c0c6e5c50 NATIVE tablegen needs to depend on target tablegen
This dependency was removed in  r357486, which has lead to a stream of difficult to diagnose bugs.

Without this dependency, when building with `LLVM_OPTIMIZED_TABLEGEN=On` the native tablegen executible may not be rebuilt at all, and often won't get rebuilt before targets that use the tablegen headers. In the best case this results in a build-time failure, in the worst case it results in runtime failures.

llvm-svn: 367895
2019-08-05 17:50:08 +00:00
Simon Pilgrim 8f823e63e3 Re-disable C4324 MSVC warning that was enabled in D65458 / rL367383
This was breaking /WX builds

llvm-svn: 367409
2019-07-31 11:06:05 +00:00
JF Bastien e825b834ec [NFC] Remove LLVM_ALIGNAS
Summary: The minimum compilers support all have alignas, and we don't use LLVM_ALIGNAS anywhere anymore. This also removes an MSVC diagnostic which, according to the comment above, isn't relevant anymore.

Reviewers: rnk

Subscribers: mgorny, jkorous, dexonsmith, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D65458

llvm-svn: 367383
2019-07-31 03:22:08 +00:00
Reid Kleckner c41b58fd40 Remove cmake checks for MSVC 1900 / VS 2013
Our minimum Visual C++ version is 19.10 from Visual Studio 2017.

llvm-svn: 367362
2019-07-30 22:49:11 +00:00
JF Bastien d56dc1d926 [NFC] Improve cmake diagnostic when checking atomics
llvm-svn: 367359
2019-07-30 22:08:38 +00:00
Rainer Orth 8d3c740f26 [CMake] Define _FILE_OFFSET_BITS=64 on Solaris
This is the compantion patch to https://reviews.llvm.org/D64482, needed to ensure
that builds with host compilers that don't yet predefine _FILE_OFFSET_BITS=64 on
Solaris succeed by always making the host and freshly built clang consistent.

Tested on x86_64-pc-solaris2.11.

Differential Revision: https://reviews.llvm.org/D64483

llvm-svn: 367304
2019-07-30 10:33:20 +00:00