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Duncan P. N. Exon Smith 88116fe71a Reapply "Verifier: Check for incompatible bit piece expressions" 
This reverts commit r234717, reapplying r234698 (in spirit).

As described in r234717, the original `Verifier` check had a
use-after-free.  Instead of storing pointers to "interesting" debug info
intrinsics whose bit piece expressions should be verified once we have
typerefs, do a second traversal.  I've added a testcase to catch the
`llc` crasher.

Original commit message:

    Verifier: Check for incompatible bit piece expressions

    Convert an assertion into a `Verifier` check.  Bit piece expressions
    must fit inside the variable, and mustn't be the entire variable.
    Catching this in the verifier will help us find bugs sooner, and makes
    `DIVariable::getSizeInBits()` dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234776 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-13 18:53:11 +00:00
autoconf Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
bindings Go bindings: make various DIBuilder arguments optional. 2015-04-08 20:18:57 +00:00
cmake [CMake] Uniquify LLVM_ABI_BREAKING_CHECKS. It reverts r233784, "[CMake] Cache in LLVMConfig.cmake." 2015-04-13 04:54:12 +00:00
docs [docs] Update outdated ExtendingLLVM.rst 2015-04-13 16:04:17 +00:00
examples Use 'override/final' instead of 'virtual' for overridden methods 2015-04-11 02:11:45 +00:00
include Reapply "Verifier: Check for incompatible bit piece expressions" 2015-04-13 18:53:11 +00:00
lib Reapply "Verifier: Check for incompatible bit piece expressions" 2015-04-13 18:53:11 +00:00
projects
test Reapply "Verifier: Check for incompatible bit piece expressions" 2015-04-13 18:53:11 +00:00
tools llvm-readobj: teach it to handle MachO Universal Archive correctly 2015-04-13 16:05:49 +00:00
unittests DebugInfo: Make MDSubprogram::getFunction() return Constant 2015-04-11 20:27:40 +00:00
utils Use 'override/final' instead of 'virtual' for overridden methods 2015-04-11 02:11:45 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Ignore compile_commands.json only at the root of the tree. 2015-03-26 18:55:42 +00:00
CMakeLists.txt Enable W4 warnings by default for MSVC builds 2015-04-07 19:01:01 +00:00
CODE_OWNERS.TXT Tom is also responsible for the 3.6 branch. 2015-03-16 18:15:27 +00:00
configure Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
CREDITS.TXT
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
Makefile.rules
README.txt Revert test commit at revision 233535. 2015-03-30 12:39:03 +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,
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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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.