Chris Lattner 39e73f7c83 Special case tblgen generated code for patterns like (and X, 255) or (or X, 42). ... The dag/inst combiners often 'simplify' the masked value based on whether or not the bits are live or known zero/one. This is good and dandy, but often causes special case patterns to fail, such as alpha's CMPBGE pattern, which looks like "(set GPRC:$RC, (setuge (and GPRC:$RA, 255), (and GPRC:$RB, 255)))". Here the pattern for (and X, 255) should match actual dags like (and X, 254) if the dag combiner proved that the missing bits are already zero (one for 'or'). For CodeGen/Alpha/cmpbge.ll:test2 for example, this results in: sll $16,1,$0 cmpbge $0,$17,$0 ret $31,($26),1 instead of: sll $16,1,$0 and $0,254,$0 and $17,255,$1 cmpule $1,$0,$0 ret $31,($26),1 ... and requires no target-specific code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30871 91177308-0d34-0410-b5e6-96231b3b80d8		2006-10-11 04:05:55 +00:00
..
.cvsignore	Add new generated files to be ignored.	2006-03-23 23:45:32 +00:00
AsmWriterEmitter.cpp	This:	2006-09-27 16:44:09 +00:00
AsmWriterEmitter.h	Maximally group commands. When all instructions within a command set have a	2006-07-18 18:28:27 +00:00
CodeEmitterGen.cpp	Fix JIT encoding of two-addr instructions.	2006-09-05 03:01:52 +00:00
CodeEmitterGen.h	1. Simplfy bit operations.	2006-07-13 21:02:53 +00:00
CodeGenInstruction.h	* Remove instruction fields hasInFlag / hasOutFlag and added SNDPInFlag and	2006-01-09 18:27:06 +00:00
CodeGenIntrinsics.h	Only compute intrinsic valuetypes when in a target .td file.	2006-03-28 00:15:00 +00:00
CodeGenRegisters.h	Add support for generating v4i32 altivec code	2005-12-30 00:12:56 +00:00
CodeGenTarget.cpp	Allow more use of iPTR in patterns.	2006-06-15 00:16:37 +00:00
CodeGenTarget.h	Don't generate getCalleeSaveReg and getCalleeSaveRegClasses anymore.	2006-05-18 00:08:46 +00:00
DAGISelEmitter.cpp	Special case tblgen generated code for patterns like (and X, 255) or (or X, 42).	2006-10-11 04:05:55 +00:00
DAGISelEmitter.h	A bit more clean up.	2006-08-26 01:02:19 +00:00
FileLexer.cpp.cvs	Fix Regression/TableGen/2006-09-18-LargeInt.td	2006-09-18 22:28:27 +00:00
FileLexer.l	Fix Regression/TableGen/2006-09-18-LargeInt.td	2006-09-18 22:28:27 +00:00
FileLexer.l.cvs	Fix Regression/TableGen/2006-09-18-LargeInt.td	2006-09-18 22:28:27 +00:00
FileParser.cpp.cvs	regenerate	2006-10-07 07:15:19 +00:00
FileParser.h.cvs	regenerate	2006-09-01 21:14:42 +00:00
FileParser.y	Bugfix: this allows multiclasses to have default arguments.	2006-10-07 07:14:48 +00:00
FileParser.y.cvs	regenerate	2006-10-07 07:15:19 +00:00
InstrInfoEmitter.cpp	Eliminate data relocations by using NULL instead of global empty list.	2006-07-21 21:15:20 +00:00
InstrInfoEmitter.h	Emit itinerary class in instruction info.	2005-10-31 17:16:46 +00:00
IntrinsicEmitter.cpp	Fix more static dtor issues	2006-10-04 21:52:35 +00:00
IntrinsicEmitter.h	extract some more information from the intrinsic table	2006-03-24 01:13:55 +00:00
Makefile	tblgen uses EH	2006-07-07 00:21:17 +00:00
Record.cpp	Generalize the previous binary operator support and add a string concatenation	2006-03-31 21:53:49 +00:00
Record.h	Add virtual methods to all subclasses so they are not overloaded.	2006-08-28 00:12:25 +00:00
RegisterInfoEmitter.cpp	Use an enumeration to eliminate data relocations.	2006-07-21 20:57:35 +00:00
RegisterInfoEmitter.h	Remove trailing whitespace	2005-04-22 00:00:37 +00:00
SubtargetEmitter.cpp	Don't make zero-sized static arrays	2006-05-24 17:31:02 +00:00
SubtargetEmitter.h	Allow itineraries to be passed through the Target Machine.	2005-11-01 20:06:59 +00:00
TableGen.cpp	remove a bunch of long-dead testing code	2006-03-03 02:34:28 +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