Scott Michel 327d0651f8 This patch fixes a problem encountered by the CellSPU backend where variants ... were being pruned in patterns where a variable was used more than once, e.g.: (or (and R32C:$rA, R32C:$rC), (and R32C:$rB, (not R32C:$rC))) In this example, $rC is used more than once and is actually significant to instruction selection pattern matching when commuted variants are produced. This patch scans the pattern's clauses and collects the variables, creating a set of variables that are used more than once. TreePatternNode::isIsomorphicTo() also understands that multiply-used variables are significant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47950 91177308-0d34-0410-b5e6-96231b3b80d8		2008-03-05 17:49:05 +00:00
..
AsmWriterEmitter.cpp	Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.	2008-02-20 11:08:44 +00:00
AsmWriterEmitter.h	remove attributions from utils.	2007-12-29 20:37:13 +00:00
CallingConvEmitter.cpp	Rename CCIfStruct to CCIfByVal and CCStructAssign to CCPassByVal. Remove unused parameters of CCStructAssign and add size and alignment requirement info.	2008-01-15 03:34:58 +00:00
CallingConvEmitter.h	remove attributions from utils.	2007-12-29 20:37:13 +00:00
CodeEmitterGen.cpp	SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc.	2008-02-02 04:07:54 +00:00
CodeEmitterGen.h	remove attributions from utils.	2007-12-29 20:37:13 +00:00
CodeGenDAGPatterns.cpp	This patch fixes a problem encountered by the CellSPU backend where variants	2008-03-05 17:49:05 +00:00
CodeGenDAGPatterns.h	This patch fixes a problem encountered by the CellSPU backend where variants	2008-03-05 17:49:05 +00:00
CodeGenInstruction.cpp	Start inferring side effect information more aggressively, and fix many bugs in the	2008-01-10 07:59:24 +00:00
CodeGenInstruction.h	Start inferring side effect information more aggressively, and fix many bugs in the	2008-01-10 07:59:24 +00:00
CodeGenIntrinsics.h	remove attributions from utils.	2007-12-29 20:37:13 +00:00
CodeGenRegisters.h	Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.	2008-02-20 11:08:44 +00:00
CodeGenTarget.cpp	SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc.	2008-02-02 04:07:54 +00:00
CodeGenTarget.h	Allow ComplexExpressions in InstrInfo.td files to be slightly more... complex! ComplexExpressions can now have attributes which affect how TableGen interprets	2008-01-31 07:27:46 +00:00
DAGISelEmitter.cpp	De-tabify.	2008-02-26 10:45:29 +00:00
DAGISelEmitter.h	rename CodegenDAGPatterns -> CodeGenDAGPatterns	2008-01-06 01:10:31 +00:00
InstrEnumEmitter.cpp	split enum emission out from InstrInfoEmitter into it's own tblgen backend.	2008-01-06 00:49:05 +00:00
InstrEnumEmitter.h	split enum emission out from InstrInfoEmitter into it's own tblgen backend.	2008-01-06 00:49:05 +00:00
InstrInfoEmitter.cpp	SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc.	2008-02-02 04:07:54 +00:00
InstrInfoEmitter.h	start inferring 'no side effects'.	2008-01-10 05:39:30 +00:00
IntrinsicEmitter.cpp	Change the builtin matcher to emit a decision tree, which should help out	2008-01-04 04:38:35 +00:00
IntrinsicEmitter.h	remove attributions from utils.	2007-12-29 20:37:13 +00:00
Makefile	remove attributions from tools/utils makefiles.	2007-12-29 20:07:17 +00:00
Record.cpp	remove attributions from utils.	2007-12-29 20:37:13 +00:00
Record.h	Add interator interface to DAGInit also	2008-01-22 11:00:07 +00:00
RegisterInfoEmitter.cpp	Rename PrintableName to Name.	2008-02-26 21:47:57 +00:00
RegisterInfoEmitter.h	remove attributions from utils.	2007-12-29 20:37:13 +00:00
SubtargetEmitter.cpp	Rewrite tblgen handling of subtarget features so	2008-02-14 23:35:16 +00:00
SubtargetEmitter.h	remove attributions from utils.	2007-12-29 20:37:13 +00:00
TableGen.cpp	split enum emission out from InstrInfoEmitter into it's own tblgen backend.	2008-01-06 00:49:05 +00:00
TableGenBackend.cpp	change getQualifiedName to be a global function.	2008-01-05 22:25:12 +00:00
TableGenBackend.h	change getQualifiedName to be a global function.	2008-01-05 22:25:12 +00:00
TGLexer.cpp	Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.	2008-02-20 11:08:44 +00:00
TGLexer.h	remove attributions from utils.	2007-12-29 20:37:13 +00:00
TGParser.cpp	Fix a crash on code like: let x = 1 {x	2008-01-10 07:01:53 +00:00
TGParser.h	remove attributions from utils.	2007-12-29 20:37:13 +00:00