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Jake Ehrlich 1a468481c0 Add flag to ArchiveWriter to test GNU64 format more efficiently 
Even with the sparse file optimizations the SYM64 test can still be painfully
slow. This unnecessarily slows down devs. It's critical that we test that the
switch to the SYM64 format occurs at 4GB but there isn't any better of a way to
fake the size of the file than sparse files. This change introduces a flag that
allows the cutoff to be arbitrarily set to whatever power of two is desired.
The flag is hidden as it really isn't meant to be used outside this one test.
This is unfortunate but appears necessary, at least until the average hard
drive is much faster.

The changes to the test require some explanation. Prior to this change we knew
that the SYM64 format was being used because the file was simply too large to
have validly handled this case if the SYM64 format were not used. To ensure
that the SYM64 format is still being used I am grepping the file for "SYM64".
Without changing the filename however this would be pointless because "SYM64"
would occur in the file either way. So the filename of the test is also changed
in order to avoid this issue.

Differential Revision: https://reviews.llvm.org/D40632

llvm-svn: 319507
 		2017-12-01 00:54:28 +00:00
clang Mark all library options as hidden. 2017-12-01 00:53:10 +00:00
clang-tools-extra [clangd] Logger implicitly adds newline 2017-11-30 23:21:34 +00:00
compiler-rt [msan] Fix return type of mbrtowc 2017-11-30 22:15:39 +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 Fix problems with r'890 when building on machines where sizeof(size_t) != sizeof(unsigned long long) and C++03 2017-11-27 22:27:22 +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 [WebAssembly] Fix typos 2017-12-01 00:53:21 +00:00
lldb Add lldb-test. 2017-12-01 00:52:51 +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 Add flag to ArchiveWriter to test GNU64 format more efficiently 2017-12-01 00:54:28 +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.