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
..
Analysis	Quick look-up for block in loop.	2013-10-26 03:08:02 +00:00
AsmParser	Use address-taken to disambiguate global variable and indirect memops.	2013-10-23 17:28:19 +00:00
Bitcode	Use address-taken to disambiguate global variable and indirect memops.	2013-10-23 17:28:19 +00:00
CodeGen	DIEHash: Summary hashing of member functions	2013-10-25 20:04:25 +00:00
DebugInfo	Correct log message typo: ended ad -> ended at	2013-10-18 13:01:33 +00:00
ExecutionEngine	The FIXME was indeed fixed in the linker, comment removed.	2013-10-25 12:01:53 +00:00
IR	llvm-cov dump to dbgs() instead of outs().	2013-10-25 02:22:24 +00:00
IRReader
Linker	Add a 'deleteModule' method to the Linker class.	2013-10-16 08:59:57 +00:00
LTO	Add a 'deleteModule' method to the Linker class.	2013-10-16 08:59:57 +00:00
MC	ARM: allow .thumb_func to be separated from symbol definition	2013-10-25 12:49:50 +00:00
Object	Support for microMIPS relocations 1.	2013-10-23 16:14:44 +00:00
Option	Fix another mistake in r190442.	2013-09-10 23:22:56 +00:00
Support	Change MemoryBuffer::getFile to take a Twine.	2013-10-25 19:06:52 +00:00
TableGen	Add an error check for a typo I accidentally made in a td file that caused an assert to fire.	2013-08-20 04:22:09 +00:00
Target	[X86][AVX512] Add patterns that match the AVX512 floating point register vbroadcast intrinsics.	2013-10-25 18:04:12 +00:00
Transforms	Quick look-up for block in loop.	2013-10-26 03:08:02 +00:00
CMakeLists.txt	Move LTO support library to a component, allowing it to be tested	2013-09-24 23:52:22 +00:00
LLVMBuild.txt	Move LTO support library to a component, allowing it to be tested	2013-09-24 23:52:22 +00:00
Makefile	Move LTO support library to a component, allowing it to be tested	2013-09-24 23:52:22 +00:00