Chris Lattner c52ad4f04e Use the new "UpdateNodeOperands" method to simplify LegalizeDAG and make it ... faster. This cuts about 120 lines of code out of the legalizer (mostly code checking to see if operands have changed). It also fixes an ugly performance issue, where the legalizer cloned the entire graph after any change. Now the "UpdateNodeOperands" method gives it a chance to reuse nodes if the operands of a node change but not its opcode or valuetypes. This speeds up instruction selection time on kimwitu++ by about 8.2% with a release build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25746 91177308-0d34-0410-b5e6-96231b3b80d8		2006-01-28 10:58:55 +00:00
..
Analysis	Add explicit iostream #includes	2006-01-22 23:19:18 +00:00
Archive	more C++ daintiness	2005-12-26 14:31:26 +00:00
AsmParser	regenerate	2006-01-25 22:27:16 +00:00
Bytecode	Fix auto-upgrade of intrinsics to work properly with both assembly and	2006-01-27 11:49:27 +00:00
CodeGen	Use the new "UpdateNodeOperands" method to simplify LegalizeDAG and make it	2006-01-28 10:58:55 +00:00
Debugger	dum de dum	2005-12-26 10:24:15 +00:00
ExecutionEngine	Add #include of <iostream>	2006-01-22 23:41:42 +00:00
Linker	Rename method	2006-01-24 04:14:29 +00:00
Support	dynamically allocate plugin space as needed	2006-01-26 19:38:58 +00:00
System	For PR351:	2005-12-22 20:00:16 +00:00
Target	silence a warning	2006-01-28 10:34:47 +00:00
Transforms	Improve compatibility with VC2005, patch by Morten Ofstad!	2006-01-26 20:41:32 +00:00
VMCore	Fix auto-upgrade of intrinsics to work properly with both assembly and	2006-01-27 11:49:27 +00:00
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