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Roman Lebedev 0d044dc090 [ubsan] lit changes for lld testing, future lto testing. 
Summary:
As discussed in https://github.com/google/oss-fuzz/issues/933,
it would be really awesome to be able to use ThinLTO for fuzzing.
However, as @kcc has pointed out, it is currently undefined (untested)
whether the sanitizers actually function properly with LLD and/or LTO.

This patch is inspired by the cfi test, which already do test with LTO
(and/or LLD), since LTO is required for CFI to function.

I started with UBSan, because it's cmakelists / lit.* files appeared
to be the cleanest. This patch adds the infrastructure to easily add
LLD and/or LTO sub-variants of the existing lit test configurations.

Also, this patch adds the LLD flavor, that explicitly does use LLD to link.
The check-ubsan does pass on my machine. And to minimize the [initial]
potential buildbot breakage i have put some restrictions on this flavour.

Please review carefully, i have not worked with lit/sanitizer tests before.

Reviewers: eugenis, vitalybuka

Reviewed By: eugenis

Subscribers: #sanitizers, pcc, kubamracek, mgorny, llvm-commits, mehdi_amini, inglorion, kcc

Differential Revision: https://reviews.llvm.org/D39508

llvm-svn: 319525
 		2017-12-01 08:38:25 +00:00
clang [c++2a] P0515R3: Support for overloaded operator<=>. 2017-12-01 02:13:10 +00:00
clang-tools-extra [clangd] Logger implicitly adds newline 2017-11-30 23:21:34 +00:00
compiler-rt [ubsan] lit changes for lld testing, future lto testing. 2017-12-01 08:38:25 +00:00
debuginfo-tests Re-revert "Refactor debuginfo-tests." 2017-11-21 01:20:28 +00:00
libclc configure.py: Add gfx900 (Vega, Raven) 2017-11-27 11:14:06 +00:00
libcxx [libcxx] Support getentropy as a source of randomness for std::random_device 2017-12-01 06:34:33 +00:00
libcxxabi [libc++abi] Add install-cxxabi-stripped target 2017-11-30 23:25:51 +00:00
libunwind [libunwind] Switch to add_llvm_install_targets 2017-11-30 23:24:08 +00:00
lld Add an additional test for r319503. 2017-12-01 04:46:56 +00:00
lldb ClangASTContext::ParseClassTemplateDecl doesn't always succeed. 2017-12-01 03:41:30 +00:00
llgo irgen: Create functions instead of global variables for builtin hash and equal algorithms. 2017-06-04 22:11:28 +00:00
llvm GlobalISel: Enable the legalization of G_MERGE_VALUES and G_UNMERGE_VALUES 2017-12-01 08:19:10 +00:00
openmp [CMake] Detect information about test compiler 2017-11-30 17:08:31 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly Handle Top-Level-Regions in polly::isHoistableLoad 2017-11-30 13:06:10 +00:00
README.md Add an svn project to contain the files that appear at the root of the 2017-10-19 21:09:49 +00:00

README.md

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.