Chris Lattner 2ad913b342 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37246 91177308-0d34-0410-b5e6-96231b3b80d8		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
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