Evan Cheng e41bf82107 Allow more loads to be folded which were previously prevented from happening ... due to ordering issue. i.e. they were selected for chain use first. Now at load select time, check if it is being selected for a chain use and if it has only a single real use. If so, return a HANDLENODE (with the load as its operand) in its place and record it. When it is folded or the load is selected for a real use, the isel records it as the replacement for the HANDLENODE. The replacement is done when all nodes are selected. This scheme exposed a couple of problems where cycles can happen. (See comments in EmitMatchCode() for descriptions of the problems and their workaround / solutions.) These problems have been resolved with a small compile time penality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25995 91177308-0d34-0410-b5e6-96231b3b80d8		2006-02-05 06:43:12 +00:00
..
.cvsignore	Implement PR614:	2005-08-27 18:50:39 +00:00
AsmWriterEmitter.cpp	add a note, ya knoe	2006-02-01 19:12:23 +00:00
AsmWriterEmitter.h	Remove trailing whitespace	2005-04-22 00:00:37 +00:00
CodeEmitterGen.cpp	Don't emit JIT code for these instructions	2006-01-27 01:39:38 +00:00
CodeEmitterGen.h	Remove trailing whitespace	2005-04-22 00:00:37 +00:00
CodeGenInstruction.h	* Remove instruction fields hasInFlag / hasOutFlag and added SNDPInFlag and	2006-01-09 18:27:06 +00:00
CodeGenRegisters.h	Add support for generating v4i32 altivec code	2005-12-30 00:12:56 +00:00
CodeGenTarget.cpp	PHI and INLINEASM are now builtin instructions provided by Target.td	2006-01-27 01:45:06 +00:00
CodeGenTarget.h	PHI and INLINEASM are now builtin instructions provided by Target.td	2006-01-27 01:45:06 +00:00
DAGISelEmitter.cpp	Allow more loads to be folded which were previously prevented from happening	2006-02-05 06:43:12 +00:00
DAGISelEmitter.h	Allow more loads to be folded which were previously prevented from happening	2006-02-05 06:43:12 +00:00
FileLexer.cpp	Regenerated the Lex and Yacc output files on Linux. It seems that our	2006-01-17 17:01:34 +00:00
FileLexer.l	Tighten up the specification to allow TableGen/nested-comment.td to pass	2005-09-06 21:23:09 +00:00
FileParser.cpp	Regenerated the Lex and Yacc output files on Linux. It seems that our	2006-01-17 17:01:34 +00:00
FileParser.h	Regenerated the Lex and Yacc output files on Linux. It seems that our	2006-01-17 17:01:34 +00:00
FileParser.y	implement test/Regression/TableGen/DagIntSubst.ll	2006-01-31 06:02:35 +00:00
InstrInfoEmitter.cpp	If we want to emit things in enum order, use getInstructionsByEnumValue to	2006-01-27 01:44:09 +00:00
InstrInfoEmitter.h	Emit itinerary class in instruction info.	2005-10-31 17:16:46 +00:00
Makefile	Implement PR614:	2005-08-27 18:50:39 +00:00
Record.cpp	implement test/Regression/TableGen/DagIntSubst.ll	2006-01-31 06:02:35 +00:00
Record.h	implement test/Regression/TableGen/DagIntSubst.ll	2006-01-31 06:02:35 +00:00
RegisterInfoEmitter.cpp	This gets most of the backends building with HP HappyC++.	2005-12-27 10:56:22 +00:00
RegisterInfoEmitter.h	Remove trailing whitespace	2005-04-22 00:00:37 +00:00
SubtargetEmitter.cpp	Subtarget feature can now set any variable to any value	2006-01-27 08:09:42 +00:00
SubtargetEmitter.h	Allow itineraries to be passed through the Target Machine.	2005-11-01 20:06:59 +00:00
TableGen.cpp	more standards-compliance stuff	2005-12-26 05:08:55 +00:00
TableGenBackend.cpp	Remove trailing whitespace	2005-04-22 00:00:37 +00:00
TableGenBackend.h	Remove trailing whitespace	2005-04-22 00:00:37 +00:00