The only reason we export symbols from these tools is to support
plugins; if we don't have plugins, exporting symbols just bloats the
executable and makes LTO less effective.
See review of D75879 for the discussion that led to this patch.
Differential Revision: https://reviews.llvm.org/D76527
This handles not paths embedded in debug info, but also in sources.
Since the use of this flag is controlled by an option, rather than
replacing the new option, we add a new option.
Differential Revision: https://reviews.llvm.org/D76018
Summary:
Related to D75672, this patch adds EVT::isFixedLengthVector to determine
if the underlying vector type is of fixed length.
An assert is introduced in EVT::getVectorNumElements that triggers for
types that aren't fixed length. This is currently guarded by a flag
added D75297 that is off by default and has been renamed to the more
generic ENABLE_STRICT_FIXED_SIZE_VECTORS.
Ideally we want to get rid of getVectorNumElements but a quick grep
shows there are >350 uses in lib/CodeGen and 75 in lib/Target/AArch64
alone. All of these probably aren't EVT::getVectorNumElements (some may
be the MVT equivalent), but there are many places to fixup and having
the assert on by default would make the SVE upstreaming effort
difficult.
Reviewers: sdesmalen, efriedma, ctetreau, huntergr, rengolin
Reviewed By: efriedma
Subscribers: mgorny, kristof.beyls, hiraditya, danielkiss, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D76376
This patch removes compiler runtime assertions that ensure the implicit
conversion are only guaranteed to work for fixed-width vectors.
With the assert it would be impossible to get _anything_ to build until
the
entire codebase has been upgraded, even when the indiscriminate uses of
the size as uint64_t would work fine for both scalable and fixed-width
types.
This issue will need to be addressed differently, with build-time errors
rather than assertion failures, but that effort falls beyond the scope
of this patch.
Returning the scalable size and avoiding the assert in getFixedSize()
is a temporary stop-gap in order to use LLVM for compiling and using
the SVE ACLE intrinsics.
Reviewers: efriedma, huntergr, rovka, ctetreau, rengolin
Reviewed By: efriedma
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D75297
Summary:
Add FORCE_ON option to LLVM_ENABLE_ZLIB, which causes a configuration
error if zlib is not found.
Similar to https://reviews.llvm.org/D40050.
Reviewers: hans, thakis, rnk
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D76110
Summary:
This is an attempt to simply the process of building the clang
documentation, which should help avoid some of the recent issues we've
had generating the documentation for the website.
The html documentation for clang is generated by sphinx from the
reStructuredText (rst) files we have in the clang/docs directory.
There are also some rst files that need to be generated by TableGen,
before they can be passed to sphinx. Prior to this patch we were not
generating those rst files as part with the build system and they had to be
generated manually.
This patch enables the automatic generation of these rst files, but
since they are generated at build time the cannot be placed in the
clang/docs directory and must go into the cmake build directory.
Unfortunately sphinx does not currently support multiple source
directories[1], so in order to be able to generate the full
documentation, we need to work around this by copying the
rst files from the clang/docs into the build directory before
generating the html documentation.
[1] https://github.com/sphinx-doc/sphinx/issues/3132
Reviewers: rsmith, aaron.ballman, beanz, smeenai, phosek, compnerd, mgorny, delcypher
Reviewed By: mgorny, delcypher
Subscribers: delcypher, merge_guards_bot, mgorny, llvm-commits, cfe-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D72875
and follow-ups:
a2ca1c2d "build: disable zlib by default on Windows"
2181bf40 "[CMake] Link against ZLIB::ZLIB"
1079c68a "Attempt to fix ZLIB CMake logic on Windows"
This changed the output of llvm-config --system-libs, and more
importantly it broke stand-alone builds. Instead of piling on more fix
attempts, let's revert this to reduce the risk of more breakages.
Summary:
Enabling _GLIBCXX_DEBUG (implied by LLVM_ENABLE_EXPENSIVE_CHECKS) causes
std::min_element (and presumably others) to no longer be constexpr, which
in turn causes the build to fail.
This seems like a bug in the GCC STL. This change works around it.
Change-Id: I5fc471caa9c4de3ef4e87aeeac8df1b960e8e72c
Reviewers: tstellar, hans, serge-sans-paille
Differential Revision: https://reviews.llvm.org/D75199
Using INTERFACE prevents the use of imported libraries as we've done
in 00b3d49 because these aren't linked against the target, they're
only made part of the interface. This doesn't affect the output since
static libraries aren't being linked into, but it enables the use of
imported libraries.
Differential Revision: https://reviews.llvm.org/D74106
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
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
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
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
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
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
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.
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
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
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
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
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.
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!
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
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
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
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.
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
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.
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
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
- 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
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
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
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.
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.
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
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.
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.
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
Eli Friedman