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Piotr Padlewski bda08e96a0 [MemDep] Handle gep with zeros for invariant.group 
Summary:
gep 0, 0 is equivalent to bitcast. LLVM canonicalizes it
to getelementptr because it make SROA can then handle it.

Simple case like

    void g(A &a) {
        z(a);
        if (glob)
            a.foo();
    }
    void testG() {
        A a;
        g(a);
    }

was not devirtualized with -fstrict-vtable-pointers because luck of
handling for gep 0 in Memory Dependence Analysis

Reviewers: dberlin, nlewycky, chandlerc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D28126

llvm-svn: 290763
2016-12-30 18:45:07 +00:00
bindings Fix go bindings after r289702 (hopefully, don't really know how to build 2016-12-15 06:54:29 +00:00
cmake Enable '-Wstring-conversion' and fix some bad asserts that it helped 2016-12-23 01:38:06 +00:00
docs [MemDep] Handle gep with zeros for invariant.group 2016-12-30 18:45:07 +00:00
examples BrainF example: fixing segfault caused by outdated code with missing MCJIT dependency 2016-12-15 19:29:42 +00:00
include [ADT] Fix for compilation error when operator++(int) (post-increment function) of SmallPtrSetIterator is used. 2016-12-30 12:34:36 +00:00
lib [MemDep] Handle gep with zeros for invariant.group 2016-12-30 18:45:07 +00:00
projects [CMake] Correct configuration order of the sub-projects based on ther dependancies 2016-10-09 20:38:29 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake] Multi-target builtins build 2016-12-12 23:15:10 +00:00
test [MemDep] Handle gep with zeros for invariant.group 2016-12-30 18:45:07 +00:00
tools Change Metadata Index emission in the bitcode to use 2x32 bits for the placeholder 2016-12-28 23:45:54 +00:00
unittests [ADT] Fix for compilation error when operator++(int) (post-increment function) of SmallPtrSetIterator is used. 2016-12-30 12:34:36 +00:00
utils Fix indentation in r290716. 2016-12-29 20:05:51 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore [AVR] Add the integrated testing tool to the .gitignore 2016-12-14 11:47:14 +00:00
CMakeLists.txt Build KillTheDoctor with mingw-w64 2016-12-22 19:11:42 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of IR Linker as discussed on llvm-dev 2016-12-02 14:06:53 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Revert revision 289721. 2016-12-14 21:58:42 +00:00
LICENSE.TXT Remove autoconf references from LICENSE.TXT 2016-08-12 20:11:03 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Test commit, deleted empty line at the end of README.txt 2016-11-07 18:31:21 +00:00
RELEASE_TESTERS.TXT Adding RELEASE_TESTERS.TXT 2016-07-21 16:46:44 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

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.