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Wei Mi 67d93f0d91 [LoopInfo] Limit the iterations to check whether a loop has dedicated exits 
for extreme large case.

We had a case that a single loop which has 4000 exits and the average number
of predecessors of each exit is > 1000, and we found compiling the case spent
a significant amount of time on checking whether a loop has dedicated exits.
This patch adds a limit for the iterations to the check. With the patch, the
time to compile our testcase reduced from 1000s to 200s (clang release build).

Differential Revision: https://reviews.llvm.org/D67359

llvm-svn: 372990
 		2019-09-26 15:36:25 +00:00
clang [OpenCL] Add -Wconversion to fdeclare-opencl-builtins test 2019-09-26 13:31:36 +00:00
clang-tools-extra [clangd] Bump vscode-clangd v0.0.18 2019-09-26 14:11:23 +00:00
compiler-rt [libFuzzer] [NFC] Fix grammar error with "it's" 2019-09-26 00:54:30 +00:00
debuginfo-tests Make nrvo-string test more robust. 2019-06-27 20:38:37 +00:00
libc Add a director, along with README.txt and LICENSE.txt, for libc. 2019-09-16 21:39:08 +00:00
libclc Revert "Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC" 2019-08-05 17:23:23 +00:00
libcxx [libc++] Take 2: Implement LWG 2510 2019-09-26 14:51:10 +00:00
libcxxabi [Testing] unbreak after r372963 2019-09-26 11:32:02 +00:00
libunwind Unwind: avoid warning about unused typedef 2019-09-20 20:46:33 +00:00
lld [mips] Relax jalr/jr instructions using R_MIPS_JALR relocation 2019-09-26 09:13:20 +00:00
lldb [lldb] Code cleanup: Simplify SBCommandReturnObject 2019-09-26 13:31:59 +00:00
llgo IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
llvm [LoopInfo] Limit the iterations to check whether a loop has dedicated exits 2019-09-26 15:36:25 +00:00
openmp fixed test: eliminated race condition which might cause deadlock 2019-09-25 15:25:52 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [CodeGen] Handle outlining of CopyStmts. 2019-09-17 22:59:43 +00:00
pstl [pstl] Allow customizing whether per-TU insulation is provided 2019-08-13 12:49:00 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
.git-blame-ignore-revs Add LLDB reformatting to .git-blame-ignore-revs 2019-09-04 09:31:55 +00:00
.gitignore Add a newline at the end of the file 2019-09-04 06:33:46 +00:00
README.md
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README.md

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.