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Djordje Todorovic 88aa158bd7 Recommit: "[Debugify][Original DI] Test dbg var loc preservation"" 
[Debugify][Original DI] Test dbg var loc preservation

    This is an improvement of [0]. This adds checking of
    original llvm.dbg.values()/declares() instructions in
    optimizations.

    We have picked a real issue that has been found with
    this (actually, picked one variable location missing
    from [1] and resolved the issue), and the result is
    the fix for that -- D100844.

    Before applying the D100844, using the options from [0]
    (but with this patch applied) on the compilation of GDB 7.11,
    the final HTML report for the debug-info issues can be found
    at [1] (please scroll down, and look for
    "Summary of Variable Location Bugs"). After applying
    the D100844, the numbers has improved a bit -- please take
    a look into [2].

    [0] https://llvm.org/docs/HowToUpdateDebugInfo.html#\
        test-original-debug-info-preservation-in-optimizations
    [1] https://djolertrk.github.io/di-check-before-adce-fix/
    [2] https://djolertrk.github.io/di-check-after-adce-fix/

    Differential Revision: https://reviews.llvm.org/D100845

The Unit test was failing because the pass from the test that
modifies the IR, in its runOnFunction() didn't return 'true',
so the expensive-check configuration triggered an assertion.
2021-05-21 02:04:29 -07:00
benchmarks
bindings Support unwinding from inline assembly 2021-05-13 19:13:03 +01:00
cmake [CMake] Don't LTO optimize targets that aren't part of any distribution 2021-05-19 15:02:11 -07:00
docs Recommit: "[Debugify][Original DI] Test dbg var loc preservation"" 2021-05-21 02:04:29 -07:00
examples [ORC] Update SpeculativeJIT example for dispatchTask changes in 5344c88dcb2. 2021-05-10 09:30:46 -07:00
include Recommit: "[Debugify][Original DI] Test dbg var loc preservation"" 2021-05-21 02:04:29 -07:00
lib Recommit: "[Debugify][Original DI] Test dbg var loc preservation"" 2021-05-21 02:04:29 -07:00
projects llvmbuildectomy - replace llvm-build by plain cmake 2020-11-13 10:35:24 +01:00
resources
runtimes [runtimes] Add the libc project to the list of runtimes. 2021-03-23 17:33:03 +00:00
test Recommit: "[Debugify][Original DI] Test dbg var loc preservation"" 2021-05-21 02:04:29 -07:00
tools [llvm-strip] Add support for '--' for delimiting options from input files 2021-05-20 03:33:51 -07:00
unittests Recommit: "[Debugify][Original DI] Test dbg var loc preservation"" 2021-05-21 02:04:29 -07:00
utils Recommit: "[Debugify][Original DI] Test dbg var loc preservation"" 2021-05-21 02:04:29 -07:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore Remove .gitignore entries not relevant in the monorepo. 2021-04-07 12:25:02 -07:00
CMakeLists.txt [CMake] Don't LTO optimize targets that aren't part of any distribution 2021-05-19 15:02:11 -07:00
CODE_OWNERS.TXT [M68k][CODE_OWNERS](0/8) Add code owner for the M68k target 2021-03-08 12:30:56 -08:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Update personal info in CREDITS.TXT 2021-04-11 19:25:02 +08:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

README.txt 

The LLVM Compiler Infrastructure
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.