Chris Lattner 504e8fb74e Implement a bunch of symbolic constant folding opportunities. This implements ...

testcase test/Regression/Assembler/ConstantExprFold.llx

Note that these kinds of things only rarely show up in source code, but are
exceedingly common in the intermediate stages of algorithms like SCCP.  By
folding things (especially relational operators) that use symbolic constants,
we are able to speculatively fold more conditional branches, which can
lead to some big simplifications.

It would be easy to add a lot more special cases here, so if you notice
SCCP missing anything "obvious", you know what to make smarter.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10812 91177308-0d34-0410-b5e6-96231b3b80d8

2004-01-13 05:51:55 +00:00

..

AsmWriter.cpp

Finegrainify namespacification

2003-11-21 20:23:48 +00:00

BasicBlock.cpp

Minor cleanups and simplifications

2003-11-21 16:52:05 +00:00

ConstantFold.cpp

Implement a bunch of symbolic constant folding opportunities. This implements

2004-01-13 05:51:55 +00:00

ConstantFold.h

Rename ConstantHandling.* -> ConstantFolding.*

2004-01-12 21:13:12 +00:00

ConstantFolding.h

Rename ConstantHandling.* -> ConstantFolding.*

2004-01-12 21:13:12 +00:00

ConstantRange.cpp

Remove use of ConstantHandling itf

2004-01-12 20:13:04 +00:00

Constants.cpp

Rename ConstantHandling.* -> ConstantFolding.*

2004-01-12 21:13:12 +00:00

Dominators.cpp

The recalclulate method was a nasty hack that was once used by the -cee pass,

2003-12-07 00:55:32 +00:00

Function.cpp

Hrm, another minor cleanup, which I missed before

2004-01-10 21:42:24 +00:00

iBranch.cpp

Somehow I forgot poor little UnwindInst

2003-11-20 18:11:56 +00:00

iCall.cpp

* Finegrainify namespacification

2003-11-20 17:45:12 +00:00

iMemory.cpp

Finegrainify namespacification

2003-11-21 20:23:48 +00:00

InstrTypes.cpp

* Finegrainify namespacification

2003-11-20 17:45:12 +00:00

Instruction.cpp

Implement new Instruction::isRelational method

2004-01-12 23:18:25 +00:00

IntrinsicLowering.cpp

Add VMCore and code generator support for debugging intrinsics. By default

2004-01-05 05:36:30 +00:00

iOperators.cpp

* Finegrainify namespacification

2003-11-20 17:45:12 +00:00

iSwitch.cpp

* Finegrainify namespacification

2003-11-20 17:45:12 +00:00

LeakDetector.cpp

Finegrainify namespacification

2003-12-14 21:35:53 +00:00

Linker.cpp

Remove use of ConstantExpr::getShift

2004-01-12 19:10:58 +00:00

Makefile

Added LLVM copyright notice to Makefiles.

2003-10-20 22:26:57 +00:00

Mangler.cpp

Finegrainify namespacification

2003-12-14 21:35:53 +00:00

Module.cpp

Add some comments, add new getGlobalVariable method

2003-12-31 08:43:01 +00:00

ModuleProvider.cpp

Finegrainify namespacification

2003-11-21 20:23:48 +00:00

Pass.cpp

Finegrainify namespacification

2003-11-21 20:23:48 +00:00

PassManagerT.h

Put all LLVM code into the llvm namespace, as per bug 109.

2003-11-11 22:41:34 +00:00

SlotCalculator.cpp

Urg, remove testing code.

2004-01-11 23:30:03 +00:00

SymbolTable.cpp

Make the lookup method const.

2003-12-31 07:08:19 +00:00

SymbolTableListTraitsImpl.h

Put all LLVM code into the llvm namespace, as per bug 109.

2003-11-11 22:41:34 +00:00

Type.cpp

Fix PR198

2003-12-31 03:19:37 +00:00

Value.cpp

Finegrainify namespacification

2003-11-21 20:23:48 +00:00

Verifier.cpp

Add support for new intrinsic

2004-01-06 05:33:02 +00:00