Dan Gohman 81b28ceab6 Improve instcombine's handling of integer min and max in two ways: ... - Recognize expressions like "x > -1 ? x : 0" as min/max and turn them into expressions like "x < 0 ? 0 : x", which is easily recognizable as a min/max operation. - Refrain from folding expression like "y/2 < 1" to "y < 2" when the comparison is being used as part of a min or max idiom, like "y/2 < 1 ? 1 : y/2". In that case, the division has another use, so folding doesn't eliminate it, and obfuscates the min/max, making it harder to recognize as a min/max operation. These benefit ScalarEvolution, CodeGen, and anything else that wants to recognize integer min and max. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56246 91177308-0d34-0410-b5e6-96231b3b80d8		2008-09-16 18:46:06 +00:00
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Analysis	Improve instcombine's handling of integer min and max in two ways:	2008-09-16 18:46:06 +00:00
Archive	Fold the useful features of alist and alist_node into ilist, and	2008-07-28 21:51:04 +00:00
AsmParser	Update generated files.	2008-09-09 01:13:24 +00:00
Bitcode	Re-enables the new vector select in the bitcode reader, by modifying the	2008-09-16 01:01:33 +00:00
CodeGen	Don't take the time to CheckDAGForTailCallsAndFixThem when tail calls	2008-09-16 01:42:28 +00:00
Debugger	Add #include	2008-08-23 21:34:34 +00:00
ExecutionEngine	Make safer variant of alias resolution routine to be default	2008-09-09 20:05:04 +00:00
Linker	Make safer variant of alias resolution routine to be default	2008-09-09 20:05:04 +00:00
Support	Updating VC++ project.	2008-08-24 11:56:40 +00:00
System	AllocateRWXMemory -> AllocateRWX.	2008-09-16 17:28:18 +00:00
Target	Fixed Bug 2751	2008-09-15 21:06:55 +00:00
Transforms	Improve instcombine's handling of integer min and max in two ways:	2008-09-16 18:46:06 +00:00
VMCore	Fix WriteAsOperand to not emit a leading space character. Adjust	2008-09-14 17:21:12 +00:00
Makefile	remove attribution from lib Makefiles.	2007-12-29 20:09:26 +00:00