Philip Reames a858157e46 [LCSSA] Cache LoopExits to avoid wasted work ... When looking at the scribus_1.3 example from https://llvm.org/bugs/show_bug.cgi?id=10584, I noticed that we were spending a large amount of time computing loop exits in LCSSA. This code appears to be written with the assumption that LoopExits are stored in the Loop and thus cheap to query. This is not true, so we should cache the result across the potentially long running loop which tends to visit a small handful of Loops. On the particular example from 10584, this change drops the time spent in LCSSA computation by about 80%. Differential Revision: https://reviews.llvm.org/D24509 llvm-svn: 281949		2016-09-19 23:30:23 +00:00
..
Analysis	[Loop Vectorizer] Consecutive memory access - fixed and simplified	2016-09-18 13:56:08 +00:00
AsmParser	Don't create a SymbolTable in Function when the LLVMContext discards value names (NFC)	2016-09-17 06:00:02 +00:00
Bitcode	BitcodeWriter: fix emission of invoke when calling a var-arg function with operand bundles	2016-09-19 21:27:04 +00:00
CodeGen	[RegisterBankInfo] Adapt call to std::fill due to use of SmallVector.	2016-09-19 23:18:47 +00:00
DebugInfo	[pdb] Write the IPI stream.	2016-09-15 18:22:31 +00:00
Demangle	Avoid using alignas and constexpr.	2016-09-06 20:36:24 +00:00
ExecutionEngine	[MCJIT] Fix some inconsistent handling of name mangling inside MCJIT.	2016-09-12 17:19:24 +00:00
Fuzzer	[libFuzzer] use sleep() instead of std::this_thread::sleep_for to avoid coverage from instrumented libc++	2016-09-19 20:32:34 +00:00
IR	Don't create a SymbolTable in Function when the LLVMContext discards value names (NFC)	2016-09-17 06:00:02 +00:00
IRReader
LibDriver	Object: Replace NewArchiveIterator with a simpler NewArchiveMember class. NFCI.	2016-06-29 22:27:42 +00:00
LineEditor
Linker	DebugInfo: New metadata representation for global variables.	2016-09-13 01:12:59 +00:00
LTO	[lib/LTO] Try harder to reduce code duplication. NFCI.	2016-09-17 22:32:42 +00:00
MC	Defer asm errors to post-statement failure	2016-09-16 18:30:20 +00:00
Object	[IRObjectFile] Turn llvm_unreachable("foo") into something more explicative.	2016-09-16 16:07:19 +00:00
ObjectYAML	[macho2yaml] Don't write empty linkedit data	2016-08-17 21:46:04 +00:00
Option	Replace "fallthrough" comments with LLVM_FALLTHROUGH	2016-08-17 05:10:15 +00:00
Passes	Fix test after renaming -name-anon-functions pass to -name-anon-globals	2016-09-16 17:18:16 +00:00
ProfileData	[Coverage] Make sorting criteria for CounterMappingRegions local.	2016-08-31 07:01:17 +00:00
Support	Missing includes.	2016-09-14 08:55:18 +00:00
TableGen	Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes.	2016-08-23 17:14:32 +00:00
Target	[x86] use getSignBit() to simplify code; NFCI	2016-09-19 22:07:27 +00:00
Transforms	[LCSSA] Cache LoopExits to avoid wasted work	2016-09-19 23:30:23 +00:00
CMakeLists.txt	Try to fix a circular dependency in the modules build.	2016-09-06 20:16:19 +00:00
LLVMBuild.txt	Add an c++ itanium demangler to llvm.	2016-09-06 19:16:48 +00:00