Chandler Carruth f8cde7388e Cache the sized-ness of struct types, once we reach the steady state of ... "is sized". This prevents every query to isSized() from recursing over every sub-type of a struct type. This could get *very* slow for extremely deep nesting of structs, as in 177.mesa. This change is a 45% speedup for 'opt -O2' of 177.mesa.linked.bc, and likely a significant speedup for other cases as well. It even impacts -O0 cases because so many part of the code try to check whether a type is sized. Thanks for the review from Nick Lewycky and Benjamin Kramer on IRC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152197 91177308-0d34-0410-b5e6-96231b3b80d8		2012-03-07 02:33:09 +00:00
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llvm	Cache the sized-ness of struct types, once we reach the steady state of	2012-03-07 02:33:09 +00:00
llvm-c	[unwind removal] Remove all of the code for the dead 'unwind' instruction. There	2012-02-06 21:44:22 +00:00