Chris Lattner fa78946482 Reimplement the loopsimplify code which deletes edges from unreachable ... blocks that target loop blocks. Before, the code was run once per loop, and depended on the number of predecessors each block in the loop had. Unfortunately, scanning preds can be really slow when huge numbers of phis exist or when phis with huge numbers of inputs exist. Now, the code is run once per function and scans successors instead of preds, which is far faster. In addition, the new code is simpler and is goto free, woo. This change speeds up a nasty testcase Duraid provided me from taking hours to taking ~72s with a debug build. The functionality this implements is already tested in the testsuite as Transforms/CodeExtractor/2004-03-13-LoopExtractorCrash.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29644 91177308-0d34-0410-b5e6-96231b3b80d8		2006-08-12 04:51:20 +00:00
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Hello	Make this example pass use some things from lib/Support (EscapeString,	2006-08-07 23:17:24 +00:00
Instrumentation	Patches to make the LLVM sources more -pedantic clean. Patch provided	2006-05-24 17:04:05 +00:00
IPO	Make it fit into 80 cols.	2006-07-20 18:03:39 +00:00
Scalar	Changes:	2006-08-03 06:34:50 +00:00
Utils	Reimplement the loopsimplify code which deletes edges from unreachable	2006-08-12 04:51:20 +00:00
ExprTypeConvert.cpp	Remove dead stuff	2006-05-12 23:32:01 +00:00
LevelRaise.cpp	remove dead variables	2006-05-14 18:33:57 +00:00
Makefile	DONT_BUILD_RELINKED is gone and implied by BUILD_ARCHIVE now	2005-10-24 02:26:13 +00:00
TransformInternals.cpp	Remove dead #include	2005-10-29 04:41:30 +00:00
TransformInternals.h	ConvertibleToGEP always returns 0, remove some old crufty code which	2005-07-26 16:38:28 +00:00