Chris Lattner 01a2202138 Add support for CombineTo, allowing the dag combiner to replace nodes with ... multiple results. Use this support to implement trivial store->load forwarding, implementing CodeGen/PowerPC/store-load-fwd.ll. Though this is the most simple case and can be extended in the future, it is still useful. For example, it speeds up 197.parser by 6.2% by avoiding an LSU reject in xalloc: stw r6, lo16(l5_end_of_array)(r2) addi r2, r5, -4 stwx r5, r4, r2 - lwzx r5, r4, r2 - rlwinm r5, r5, 0, 0, 30 stwx r5, r4, r2 lwz r2, -4(r4) ori r2, r2, 1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23690 91177308-0d34-0410-b5e6-96231b3b80d8		2005-10-10 22:04:48 +00:00
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DAGCombiner.cpp	Add support for CombineTo, allowing the dag combiner to replace nodes with	2005-10-10 22:04:48 +00:00
LegalizeDAG.cpp	silence a bogus GCC warning	2005-10-06 17:39:10 +00:00
Makefile	Change Library Names Not To Conflict With Others When Installed	2004-10-27 23:18:45 +00:00
ScheduleDAG.cpp	When emiting a CopyFromReg and the source is already a vreg, do not bother	2005-10-09 05:58:56 +00:00
SelectionDAG.cpp	This function is now dead	2005-10-10 16:49:22 +00:00
SelectionDAGISel.cpp	Enable Nate's excellent DAG combiner work by default. This allows the	2005-10-10 16:47:10 +00:00
SelectionDAGPrinter.cpp	add a method	2005-10-01 00:17:07 +00:00
TargetLowering.cpp	initialize new flag	2005-09-27 22:13:56 +00:00