Chris Lattner e233b8c64b Eliminate generality that is not buying us anything. In particular, this ...

will cause us to miss cases where the input pointer to a load could be value
numbered to another load.  Something like this:


  %X = load int* %P1
  %Y = load int* %P2

Those are obviously the same if P1/P2 are the same.  The code this patch
removes attempts to handle that.  However, since GCSE iterates, this doesn't
actually buy us anything: GCSE will first replace P1 or P2 with the other
one, then the load can be value numbered as equal.

Removing this code speeds up gcse a lot.  On 176.gcc in debug mode, this
speeds up gcse from 29.08s -> 25.73s, a 13% savings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19906 91177308-0d34-0410-b5e6-96231b3b80d8

2005-01-29 06:11:16 +00:00

..

DataStructure

Remove this code as it is currently completely broken and unmaintained.

2005-01-28 06:12:46 +00:00

IPA

Add even more missing createXxxPass functions.

2005-01-08 22:01:16 +00:00

AliasAnalysis.cpp

Adjust to new alias analysis interfaces

2004-12-15 07:22:13 +00:00

AliasAnalysisCounter.cpp

Add even more missing createXxxPass functions.

2005-01-08 22:01:16 +00:00

AliasAnalysisEvaluator.cpp

Add even more missing createXxxPass functions.

2005-01-08 22:01:16 +00:00

AliasSetTracker.cpp

Adjust to new alias analysis interfaces

2004-12-15 07:22:13 +00:00

BasicAliasAnalysis.cpp

Add even more missing createXxxPass functions.

2005-01-08 22:01:16 +00:00

CFGPrinter.cpp

For PR387:\

2004-12-07 04:03:45 +00:00

ConstantRange.cpp

Bug fixes for PR341

2004-07-15 01:29:12 +00:00

Expressions.cpp

Add #include <iostream> since Value.h does not #include it any more.

2004-07-04 12:19:56 +00:00

InstCount.cpp

Standardize on 'class' instead of 'struct'. Gets rid of warnings in VC++

2004-11-16 06:58:55 +00:00

Interval.cpp

Fixes for PR341

2004-07-15 02:31:46 +00:00

IntervalPartition.cpp

For PR387:\

2004-12-07 04:03:45 +00:00

LoadValueNumbering.cpp

Eliminate generality that is not buying us anything. In particular, this

2005-01-29 06:11:16 +00:00

LoopInfo.cpp

For PR387:\

2004-12-07 04:03:45 +00:00

Makefile

Change Library Names Not To Conflict With Others When Installed

2004-10-27 23:18:45 +00:00

PostDominators.cpp

Add support for unreachable

2004-10-16 18:21:33 +00:00

ProfileInfo.cpp

Add even more missing createXxxPass functions.

2005-01-08 22:01:16 +00:00

ProfileInfoLoader.cpp

Add #include <iostream> since Value.h does not #include it any more.

2004-07-04 12:19:56 +00:00

ProfileInfoLoaderPass.cpp

Apply feed back from Chris:

2005-01-10 03:56:27 +00:00

ScalarEvolution.cpp

For PR387:\

2004-12-07 04:03:45 +00:00

Trace.cpp

Add #include <iostream> since Value.h does not #include it any more.

2004-07-04 12:19:56 +00:00

ValueNumbering.cpp

Add even more missing createXxxPass functions.

2005-01-08 22:01:16 +00:00