Chris Lattner c6d7ad3c7d Rewrite chain handling validation and input TokenFactor handling ... stuff now that we don't care about emulating the old broken behavior of the old isel. This eliminates the 'CheckChainCompatible' check (along with IsChainCompatible) which did an incorrect and inefficient scan *up* the chain nodes which happened as the pattern was being formed and does the validation at the end in HandleMergeInputChains when it forms a structural pattern. This scans "down" the graph, which means that it is quickly bounded by nodes already selected. This also handles token factors that get "trapped" in the dag. Removing the CheckChainCompatible nodes also shrinks the generated tables by about 6K for X86 (down to 83K). There are two pieces remaining before I can nuke PreprocessRMW: 1. I xfailed a test because we're now producing worse code in a case that has nothing to do with the change: it turns out that our use of MorphNodeTo will leave dead nodes in the graph which (depending on how the graph is walked) end up causing bogus uses of chains and blocking matches. This is really bad for other reasons, so I'll fix this in a follow-up patch. 2. CheckFoldableChainNode needs to be improved to handle the TF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97539 91177308-0d34-0410-b5e6-96231b3b80d8		2010-03-02 02:22:10 +00:00
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Analysis	Non-affine post-inc SCEV expansions have more code which must be	2010-03-02 01:59:21 +00:00
Archive	From PR6228:	2010-02-04 06:19:43 +00:00
AsmParser	Introduce isOpaqueTy and use it rather than isa<OpaqueType>. Also, move some	2010-02-16 14:50:09 +00:00
Bitcode	Make the side-numbering of instructions used by metadata (which is needed to	2010-02-25 08:30:17 +00:00
CodeGen	Rewrite chain handling validation and input TokenFactor handling	2010-03-02 02:22:10 +00:00
CompilerDriver	Input files with empty suffixes must be passed to linker.	2010-02-23 09:05:21 +00:00
ExecutionEngine	There are two ways of checking for a given type, for example isa<PointerType>(T)	2010-02-16 11:11:14 +00:00
Linker	Introduce isOpaqueTy and use it rather than isa<OpaqueType>. Also, move some	2010-02-16 14:50:09 +00:00
MC	pass in more section kinds, enough to get the .align 0x90	2010-02-26 18:32:26 +00:00
Support	Don't potentially read past the end of the fill data when making a NaN from	2010-03-01 18:38:45 +00:00
System	follow-on to PR6280	2010-02-14 18:20:09 +00:00
Target	Remove dead parameter passing.	2010-03-02 01:55:18 +00:00
Transforms	Non-affine post-inc SCEV expansions have more code which must be	2010-03-02 01:59:21 +00:00
VMCore	Don't print "Modified" for passes which haven't modified anything.	2010-03-01 17:34:28 +00:00
Makefile	remove llvm-db: it is completely broken and if anyone wants to do a debugger,	2009-10-05 02:29:51 +00:00