Chris Lattner b08cbbd737 Disable the (A == (B-A)) -> 2*A == B xform when the sub has multiple uses (in ...

this case, the xform introduces an extra operation).  This compiles
PowerPC/compare-duplicate.ll into:

_test:
        subf r2, r3, r4
        cmplw cr0, r2, r3
        bne cr0, LBB1_2 ;F

instead of:

_test:
        slwi r2, r3, 1
        subf r3, r3, r4
        cmplw cr0, r4, r2
        bne cr0, LBB1_2 ;F

This is target independent of course.

llvm-svn: 37246

2007-05-19 00:43:44 +00:00

..

CallingConvLower.cpp

add methods for analysis of call results and return nodes.

2007-02-28 07:09:40 +00:00

DAGCombiner.cpp

Qualify calls to getTypeForValueType with MVT:: too.

2007-05-18 18:41:29 +00:00

LegalizeDAG.cpp

Qualify several calls to functions in the MVT namespace, for consistency.

2007-05-18 17:52:13 +00:00

Makefile

For PR780:

2006-07-26 16:18:00 +00:00

ScheduleDAG.cpp

Fix some VC++ warnings.

2007-03-20 20:43:18 +00:00

ScheduleDAGList.cpp

switch the sched unit map over to use a DenseMap instead of std::map. This

2007-02-03 01:34:13 +00:00

ScheduleDAGRRList.cpp

Fix a typo in a comment.

2007-04-26 19:40:56 +00:00

ScheduleDAGSimple.cpp

Removed tabs everywhere except autogenerated & external files. Add make

2007-04-16 18:10:23 +00:00

SelectionDAG.cpp

Be more careful about folding op(x, undef) when we have vector operands.

2007-04-25 00:00:45 +00:00

SelectionDAGISel.cpp

Qualify several calls to functions in the MVT namespace, for consistency.

2007-05-18 17:52:13 +00:00

SelectionDAGPrinter.cpp

Qualify several calls to functions in the MVT namespace, for consistency.

2007-05-18 17:52:13 +00:00

TargetLowering.cpp

Disable the (A == (B-A)) -> 2*A == B xform when the sub has multiple uses (in

2007-05-19 00:43:44 +00:00