Matthijs Kooijman d16918f843 Restructure dead argument elimination, try #3 :-) ... Rewrite the DeadArgumentElimination pass, to use a more explicit tracking of dependencies between return values and/or arguments. Also make the handling of arguments and return values the same. The pass now looks properly inside returned structs, but only at the first level (ie, not inside nested structs). This version fixed a few more bugs and was cleaned up a bit. It now passes all of LLVM's testing, and should still pass SPEC2006. There is still a minor bug with regard to returning nested structs. Since there is currently nothing that emits such IR, I will fix that in a seperate commit (partly because it requires a non-trivial fix). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53400 91177308-0d34-0410-b5e6-96231b3b80d8		2008-07-10 10:24:08 +00:00
..
ADCE	Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this.	2008-07-03 17:21:41 +00:00
ArgumentPromotion	Fix two more not-grep tests that were missing llvm-dis.	2008-06-09 22:36:45 +00:00
BlockPlacement	Let some more tests ignore expected output on stderr.	2008-06-10 15:04:14 +00:00
BranchFolding
CodeExtractor
CondProp
ConstantMerge
ConstProp	Fix a case where vector comparison constant folding would cause an	2008-07-10 00:29:28 +00:00
DeadArgElim	Restructure dead argument elimination, try #3 :-)	2008-07-10 10:24:08 +00:00
DeadStoreElimination
GCSE
GlobalDCE
GlobalOpt
GVN	A better fix for PR2503 that doesn't pessimize GVN in the presence of unreachable blocks.	2008-07-02 17:20:16 +00:00
GVNPRE
IndVarsSimplify	Fix PR2434. When scanning for exising binary operator to reuse don't	2008-06-15 19:07:39 +00:00
Inline	Let some more tests ignore expected output on stderr.	2008-06-10 15:04:14 +00:00
InstCombine	Fix overzealous optimization. Thanks to Duncan Sands for pointing out my error!	2008-07-10 05:51:40 +00:00
Internalize	Let some more tests ignore expected output on stderr.	2008-06-10 15:04:14 +00:00
IPConstantProp	Modify some ipconstprop tests to also test with invokes.	2008-06-19 09:27:44 +00:00
JumpThreading
LCSSA
LICM
LoopDeletion
LoopIndexSplit	If loop induction variable's start value is less then its exit value then do not split the loop.	2008-07-09 00:12:01 +00:00
LoopRotate
LoopSimplify
LoopStrengthReduce	Improve LSR's dead-phi detection to handle use-def cycles	2008-06-22 20:44:02 +00:00
LoopUnroll	Revert 52645, the loop unroller changes. It caused a regression in 252.eon.	2008-06-24 20:44:42 +00:00
LoopUnswitch	Preserve dominance frontier while trivially unswitching loop.	2008-06-18 02:16:38 +00:00
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg
MemCpyOpt	Fix two issues that Eli Friedman pointed out, where would misoptimized code like:	2008-06-01 22:26:26 +00:00
PredicateSimplifier
PruneEH	Test that prune-eh doesn't make deductions based	2008-06-09 11:28:41 +00:00
RaiseAllocations
Reassociate	Let some more tests ignore expected output on stderr.	2008-06-10 15:04:14 +00:00
ScalarRepl	Fix PR2369 by making scalarrepl more careful about promoting	2008-06-22 17:46:21 +00:00
SCCP
SimplifyCFG	Speculatively execute a block when the the block is the then part of a triangle shape and it contains a single, side effect free, cheap instruction. The branch is eliminated by adding a select instruction. i.e.	2008-06-07 08:52:29 +00:00
SimplifyLibCalls	lower calls to abs to inline code, PR2337	2008-06-09 08:26:51 +00:00
SRETPromotion	Let StructRetPromotion check if all if its users are really calls or invokesn,	2008-06-05 08:57:20 +00:00
StripSymbols
TailCallElim
TailDup	Revert 52223.	2008-06-12 20:55:39 +00:00