Chris Lattner 7e40f63428 When inserting PHI nodes, don't insert any phi nodes that are obviously ...

unneccesary.  This allows us to delete several hundred phi nodes of the
form PHI(x,x,x,undef) from 253.perlbmk and probably other programs as well.

This implements Mem2Reg/UndefValuesMerge.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17098 91177308-0d34-0410-b5e6-96231b3b80d8

2004-10-17 21:25:56 +00:00

..

Hello

Update to reflect changes in Makefile rules.

2004-10-13 11:46:52 +00:00

Instrumentation

Update to reflect changes in Makefile rules.

2004-10-13 11:46:52 +00:00

IPO

Add support for the undef value. Implement a new optimization based on globals

2004-10-16 18:09:00 +00:00

Scalar

hasConstantValue will soon return instructions that don't dominate the PHI node,

2004-10-17 21:22:38 +00:00

Utils

When inserting PHI nodes, don't insert any phi nodes that are obviously

2004-10-17 21:25:56 +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

…

Makefile.am

Update to reflect changes in Makefile rules.

2004-10-13 11:46:52 +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

…