17 Commits

Author SHA1 Message Date
Rahul Joshi
a76bf4da53
[NFC][ADT/Support] Add {} for else when if body has {} (#140758) 2025-05-21 13:19:09 -07:00
Andrew Rogers
dd0a1c56df
[llvm] revert preprocessor dump method guards from llvm::ScaledNumber (#140574)
## Purpose
Reverts the preprocessor guards added to the `dump()` methods in
`llvm/Support/ScaledNumber.h` in #139938 so that the header can be
included when building an external project in debug mode against a
release LLVM build.

## Overview
This is a clean revert of two files modified in #139938. The rest of
that change should not cause similar problems.

## Background
The following new build error was reported on #139938, which was merged
last week:
```
module.cpp:(.text._ZNK4llvm12ScaledNumberImE4dumpEv[_ZNK4llvm12ScaledNumberImE4dumpEv]+0x34): undefined reference to `llvm::ScaledNumberBase::dump(unsigned long, short, int)'
```
See further discussion on #139938.

## Validation
Implemented a simple external LLVM project to reproduce the issue.
Verified the the following link failure is observed on LLVM main
(Windows + Clang) without this change:
```
C:\WINDOWS\system32\cmd.exe /C "cd . && C:\PROGRA~1\LLVM\bin\CLANG_~1.EXE -nostartfiles -nostdlib -O0 -g -Xclang -gcodeview -D_DEBUG -D_DLL -D_MT -Xclang --dependent-lib=msvcrtd -Xlinker /subsystem:console  -fuse-ld=lld-link CMakeFiles/llvm-dump-test.dir/main.cxx.obj -o llvm-dump-test.exe -Xlinker /MANIFEST:EMBED -Xlinker /implib:llvm-dump-test.lib -Xlinker /pdb:llvm-dump-test.pdb -Xlinker /version:0.0   -lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32 -loldnames  && cd ."
lld-link: error: undefined symbol: public: static void __cdecl llvm::ScaledNumberBase::dump(unsigned __int64, short, int)
>>> referenced by S:\llvm\llvm-project\llvm\include\llvm\Support\ScaledNumber.h:614
>>>               CMakeFiles/llvm-dump-test.dir/main.cxx.obj:(public: void __cdecl llvm::ScaledNumber<unsigned __int64>::dump(void) const)
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.
```
Verified the link issue is resolved after applying this change.

Also, manually included all header files that were modified in #139938
in the test program and verified there are no other link errors.
2025-05-19 11:18:33 -07:00
Andrew Rogers
0563186a76
[llvm] properly guard dump methods in Support lib classes (#139938)
## Purpose
Add proper preprocessor guards for all `dump()` methods in the LLVM
support library. This change ensures these methods are not part of the
public ABI for release builds.

## Overview
* Annotates all `dump` methods in Support and ADT source with the
`LLVM_DUMP_METHOD` macro.
* Conditionally includes all `dump` method definitions in Support and
ADT source so they are only present on debug/assert builds and when
`LLVM_ENABLE_DUMP` is explicitly defined.

NOTE: For many of these `dump` methods, the implementation was already
properly guarded but the declaration in the header file was not.

## Background
This PR is a redo of #139804 with some changes to fix clang and unit
test build breaks.

This issue was raised in comments on #136629. I am addressing it as a
separate change since it is independent from the changes being made in
that PR.

According to [this
documentation](https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/Support/Compiler.h#L637),
`dump` methods should be annotated with `LLVM_DUMP_METHOD` and
conditionally included as follows:
```
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  LLVM_DUMP_METHOD void dump() const;
#endif
```

## Validation
* Local release build succeeds.
* CI
2025-05-14 13:48:45 -07:00
Andrew Rogers
9a0e1c7988
Revert "[llvm] properly guard dump methods in Support lib classes" (#139927)
Reverts llvm/llvm-project#139804
2025-05-14 09:35:19 -07:00
Andrew Rogers
c9d05f3bcb
[llvm] properly guard dump methods in Support lib classes (#139804)
## Purpose
Add proper preprocessor guards for all `dump()` methods in the LLVM
support library. This change ensures these methods are not part of the
public ABI for release builds.

## Overview
* Annotates all `dump` methods in Support and ADT source with the
`LLVM_DUMP_METHOD` macro.
* Conditionally includes all `dump` method definitions in Support and
ADT source so they are only present on debug/assert builds and when
`LLVM_ENABLE_DUMP` is explicitly defined.

NOTE: For many of these `dump` methods, the implementation was already
properly guarded but the declaration in the header file was not.

## Background
This issue was raised in comments on #136629. I am addressing it as a
separate change since it is independent from the changes being made in
that PR.

According to [this
documentation](https://github.com/llvm/llvm-project/blob/main/llvm/include/llvm/Support/Compiler.h#L637),
`dump` methods should be annotated with `LLVM_DUMP_METHOD` and
conditionally included as follows:
```
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
  LLVM_DUMP_METHOD void dump() const;
#endif
```

## Validation
* Local release build succeeds.
* CI
2025-05-14 08:54:12 -07:00
Kazu Hirata
55e2cd1609 Use llvm::count{lr}_{zero,one} (NFC) 2023-01-28 12:41:20 -08:00
Chandler Carruth
2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Stephan Bergmann
17c7f70362 Replace APFloatBase static fltSemantics data members with getter functions
At least the plugin used by the LibreOffice build
(<https://wiki.documentfoundation.org/Development/Clang_plugins>) indirectly
uses those members (through inline functions in LLVM/Clang include files in turn
using them), but they are not exported by utils/extract_symbols.py on Windows,
and accessing data across DLL/EXE boundaries on Windows is generally
problematic.

Differential Revision: https://reviews.llvm.org/D26671

llvm-svn: 289647
2016-12-14 11:57:17 +00:00
Mehdi Amini
47b292d3fd Remove some unneeded headers and replace some headers with forward class declarations (NFC)
Differential Revision: http://reviews.llvm.org/D19154

Patch by Eugene Kosov <claprix@yandex.ru>

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 266524
2016-04-16 07:51:28 +00:00
Benjamin Kramer
16132e6faa Purge unused includes throughout libSupport.
NFC.

llvm-svn: 232976
2015-03-23 18:07:13 +00:00
Chandler Carruth
d9903888d9 [cleanup] Re-sort all the #include lines in LLVM using
utils/sort_includes.py.

I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the InstrProf library that I've
added. No functionality changed here, just mechanical cleanup of the
include order.

llvm-svn: 225974
2015-01-14 11:23:27 +00:00
Michael Ilseman
5be22a12c2 Clean up static analyzer warnings.
Clang's static analyzer found several potential cases of undefined
behavior, use of un-initialized values, and potentially null pointer
dereferences in tablegen, Support, MC, and ADT. This cleans them up
with specific assertions on the assumptions of the code.

llvm-svn: 224154
2014-12-12 21:48:03 +00:00
Michael Ilseman
4e654cd664 Silence static analyzer warnings in LLVMSupport.
The static analyzer catches a few potential bugs in LLVMSupport. Add
in asserts to silence the warnings.

llvm-svn: 224044
2014-12-11 19:46:38 +00:00
Alexey Samsonov
314c643b4a Fix undefined behavior (left shift by 64 bits) in ScaledNumber::toString().
This bug is reported by UBSan.

llvm-svn: 216116
2014-08-20 18:30:07 +00:00
Duncan P. N. Exon Smith
84553d8f1f Support: Move class ScaledNumber
ScaledNumber has been cleaned up enough to pull out of BFI now.  Still
work to do there (tests for shifting, bloated printing code, etc.), but
it seems clean enough for its new home.

llvm-svn: 211562
2014-06-24 00:38:09 +00:00
Duncan P. N. Exon Smith
0067ff4678 Support: Extract ScaledNumbers::compare()
llvm-svn: 211507
2014-06-23 17:47:40 +00:00
Duncan P. N. Exon Smith
411840d963 Support: Write ScaledNumber::getQuotient() and getProduct()
llvm-svn: 211409
2014-06-20 21:47:47 +00:00