Chris Lattner 4e998b2fea Fold binary expressions and casts into PHI nodes that have all constant inputs. ... This takes something like this: %A = phi int [ 3, %cond_false.0 ], [ 2, %endif.0.i ], [ 2, %endif.1.i ] %B = div int %tmp.243, 4 and turns it into: %A = phi int [ 3/4, %cond_false.0 ], [ 2/4, %endif.0.i ], [ 2/4, %endif.1.i ] which is later simplified (in this case) into %A = 0. This triggers thousands of times in spec, for example, 269 times in 176.gcc. This is tested by InstCombine/add.ll:test23 and set.ll:test18. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16582 91177308-0d34-0410-b5e6-96231b3b80d8		2004-09-29 05:07:12 +00:00
..
Hello	Add a newline	2004-09-15 17:53:52 +00:00
Instrumentation	'Pass' should now not be derived from by clients. Instead, they should derive	2004-09-20 04:48:05 +00:00
IPO	'Pass' should now not be derived from by clients. Instead, they should derive	2004-09-20 04:48:05 +00:00
Scalar	Fold binary expressions and casts into PHI nodes that have all constant inputs.	2004-09-29 05:07:12 +00:00
Utils	Pull assignment out of for loop conditional in order for this to	2004-09-28 02:40:37 +00:00
ExprTypeConvert.cpp	Add includes and use std:: for standard library calls to make code	2004-09-28 14:42:44 +00:00
LevelRaise.cpp	Prototype more accurately	2004-09-20 04:43:57 +00:00
Makefile	Added LLVM copyright notice to Makefiles.	2003-10-20 22:26:57 +00:00
TransformInternals.cpp	Merge i*.h headers into Instructions.h as part of bug403.	2004-07-29 12:17:34 +00:00
TransformInternals.h	Put all LLVM code into the llvm namespace, as per bug 109.	2003-11-11 22:41:34 +00:00