4 Commits

Author	SHA1	Message	Date
Nate Begeman	b392321cae	Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into ... BasicBlock's removePredecessor routine. This requires shuffling around the definition and implementation of hasContantValue from Utils.h,cpp into Instructions.h,cpp llvm-svn: 22664	2005-08-04 23:24:19 +00:00
Misha Brukman	b1c9317bb4	Remove trailing whitespace ... llvm-svn: 21427	2005-04-21 23:48:37 +00:00
Chris Lattner	ee84413730	silence a bogus warning ... llvm-svn: 21320	2005-04-18 05:26:21 +00:00
Chris Lattner	16a50fd0a0	a new simple pass, which will be extended to be more useful in the future. ... This pass forward branches through conditions when it can show that the conditions is either always true or false for a predecessor. This currently only handles the most simple cases of this, but is successful at threading across 2489 branches and 65 switch instructions in 176.gcc, which isn't bad. llvm-svn: 21306	2005-04-15 19:28:32 +00:00