Chris Lattner 85d9944f9a 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. llvm-svn: 29644		2006-08-12 04:51:20 +00:00
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Analysis	Speed up Loop::isLCSSAForm by using a binary search and single-entry cache.	2006-08-02 00:14:16 +00:00
AsmParser	These libs use EH info	2006-07-07 16:44:31 +00:00
Bytecode	Modify Path::eraseFromDisk to not throw an exception.	2006-07-28 22:29:50 +00:00
CodeGen	Switch to using SuperFastHash instead of adding all elements together. This	2006-08-12 01:07:10 +00:00
Debugger	Change Path::getStatusInfo to return a boolean and error string on an error	2006-07-28 22:03:44 +00:00
ExecutionEngine	Fix handling of asm specifiers for external globals. This unbreaks many programs	2006-07-28 21:11:31 +00:00
Linker	Remove a redundant syscall.	2006-07-28 22:52:11 +00:00
Support	remove IncludeFile turds in MathExtras.h, which bloats every .o file that	2006-08-11 23:52:54 +00:00
System	Remove extraneous #include.	2006-08-07 05:36:24 +00:00
Target	eliminate extraneous blank line	2006-08-11 21:08:16 +00:00
Transforms	Reimplement the loopsimplify code which deletes edges from unreachable	2006-08-12 04:51:20 +00:00
VMCore	Add dominates/properlyDominates queries to IDom.	2006-08-01 22:24:47 +00:00
Makefile	Make some changes suggested by Chris:	2006-05-17 22:55:35 +00:00