Wan Xiaofei 887f9c5ec1 Quick look-up for block in loop. ... This patch implements quick look-up for block in loop by maintaining a hash set for blocks. It improves the efficiency of loop analysis a lot, the biggest improvement could be 5-6%(458.sjeng). Below are the compilation time for our benchmark in llc before & after the patch. Benchmark llc - trunk llc - patched 401.bzip2 0.339081 100.00% 0.329657 102.86% 403.gcc 19.853966 100.00% 19.605466 101.27% 429.mcf 0.049823 100.00% 0.048451 102.83% 433.milc 0.514898 100.00% 0.510217 100.92% 444.namd 1.109328 100.00% 1.103481 100.53% 445.gobmk 4.988028 100.00% 4.929114 101.20% 456.hmmer 0.843871 100.00% 0.825865 102.18% 458.sjeng 0.754238 100.00% 0.714095 105.62% 464.h264ref 2.9668 100.00% 2.90612 102.09% 471.omnetpp 4.556533 100.00% 4.511886 100.99% bitmnp01 0.038168 100.00% 0.0357 106.91% idctrn01 0.037745 100.00% 0.037332 101.11% libquake2 3.78689 100.00% 3.76209 100.66% libquake_ 2.251525 100.00% 2.234104 100.78% linpack 0.033159 100.00% 0.032788 101.13% matrix01 0.045319 100.00% 0.043497 104.19% nbench 0.333161 100.00% 0.329799 101.02% tblook01 0.017863 100.00% 0.017666 101.12% ttsprk01 0.054337 100.00% 0.053057 102.41% Reviewer : Andrew Trick <atrick@apple.com>, Hal Finkel <hfinkel@anl.gov> Approver : Andrew Trick <atrick@apple.com> Test : Pass make check-all & llvm test-suite git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193460 91177308-0d34-0410-b5e6-96231b3b80d8		2013-10-26 03:08:02 +00:00
..
ADT	Undefine NetBSD, it may have been defined by an earlier include of	2013-09-25 17:49:57 +00:00
Analysis	Quick look-up for block in loop.	2013-10-26 03:08:02 +00:00
Assembly
Bitcode
CodeGen	LegalizeDAG: allow libcalls for max/min atomic operations	2013-10-25 09:30:20 +00:00
Config	Revert "Revert "Windows: Add support for unicode command lines""	2013-10-07 01:00:07 +00:00
DebugInfo	[DebugInfo] Remove unneeded struct member and hide struct definition. No functionality change.	2013-10-18 07:13:32 +00:00
ExecutionEngine	Optimizing MCJIT module state tracking	2013-10-24 00:19:14 +00:00
IR	AVX-512: added VCVTPH2PS, VCVTPS2PH with intrinsics	2013-10-24 07:16:35 +00:00
IRReader
LTO	Optimize linkonce_odr unnamed_addr functions during LTO.	2013-10-03 18:29:09 +00:00
MC	ARM: allow .thumb_func to be separated from symbol definition	2013-10-25 12:49:50 +00:00
Object	Add missing #include's to cctype when using isdigit/alpha/etc.	2013-10-12 00:55:57 +00:00
Option
Support	Change MemoryBuffer::getFile to take a Twine.	2013-10-25 19:06:52 +00:00
TableGen	Speling fixes.	2013-10-22 15:18:03 +00:00
Target	SelectionDAG: Pass along the original argument/element type in ISD::InputArg	2013-10-23 00:44:24 +00:00
Transforms	Optimize more linkonce_odr values during LTO.	2013-10-21 17:14:55 +00:00
AutoUpgrade.h	AutoUpgrade: upgrade from scalar TBAA format to struct-path aware TBAA format.	2013-09-28 00:22:27 +00:00
CMakeLists.txt
DebugInfo.h	Reformat.	2013-10-15 21:22:12 +00:00
DIBuilder.h	fix two typos.	2013-10-21 23:55:19 +00:00
GVMaterializer.h
InitializePasses.h	Remove the now unused strong phi elimination pass.	2013-10-14 16:39:04 +00:00
InstVisitor.h
LinkAllIR.h
LinkAllPasses.h	Remove the very substantial, largely unmaintained legacy PGO	2013-10-02 15:42:23 +00:00
Linker.h	Add a 'deleteModule' method to the Linker class.	2013-10-16 08:59:57 +00:00
Pass.h
PassAnalysisSupport.h
PassManager.h	Revert "Encapsulate PassManager debug flags to avoid static init and cxa_exit."	2013-09-19 06:02:43 +00:00
PassManagers.h
PassRegistry.h
PassSupport.h