Owen Anderson 856fcd57d1 LoadPRE was not properly checking that the load it was PRE'ing post-dominated the block it was being hoisted to. ... Splitting critical edges at the merge point only addressed part of the issue; it is also possible for non-post-domination to occur when the path from the load to the merge has branches in it. Unfortunately, full anticipation analysis is time-consuming, so for now approximate it. This is strictly more conservative than real anticipation, so we will miss some cases that real PRE would allow, but we also no longer insert loads into paths where they didn't exist before. :-) This is a very slight net positive on SPEC for me (0.5% on average). Most of the benchmarks are largely unaffected, but when it pays off it pays off decently: 181.mcf improves by 4.5% on my machine. llvm-svn: 114785		2010-09-25 05:26:18 +00:00
..
ADCE
ArgumentPromotion	Fix rdar://7879828 - crash in CallGraph, a self host issue.	2010-04-20 00:46:50 +00:00
BlockPlacement
BranchFolding
CodeExtractor
CodeGenPrepare
ConstantMerge	fix PR8144, a bug where constant merge would merge globals marked	2010-09-15 00:30:11 +00:00
ConstProp	remove some noise from tests.	2010-09-02 22:35:33 +00:00
CorrelatedValuePropagation	Add missing RUN line to this test.	2010-09-16 18:46:23 +00:00
DeadArgElim	Preserve debug info attached with call instruction while eliminating dead argument.	2010-04-30 20:23:54 +00:00
DeadStoreElimination	add newlines at the end of files.	2010-04-07 22:53:17 +00:00
FunctionAttrs
GlobalDCE
GlobalOpt	Fix this test to avoid an "inexact" fold.	2010-09-17 20:25:43 +00:00
GVN	LoadPRE was not properly checking that the load it was PRE'ing post-dominated the block it was being hoisted to.	2010-09-25 05:26:18 +00:00
IndVarSimplify	more test cleanup	2010-09-02 22:38:56 +00:00
Inline	Fix PR7272: when inlining through a callsite with byval arguments,	2010-05-31 21:00:26 +00:00
InstCombine	Be more precise when trying to XFAIL this tester: http://google1.osuosl.org:8011/builders/llvm-arm-linux	2010-09-24 20:34:49 +00:00
Internalize
IPConstantProp	more test cleanup	2010-09-02 22:38:56 +00:00
JumpThreading	Remove dead option from tests.	2010-09-14 21:03:40 +00:00
LCSSA	Avoid depending on LCSSA implicitly pulling in LoopSimplify.	2010-07-26 18:00:43 +00:00
LICM	fix PR8102, a case where we'd copyValue from a value that we already	2010-09-14 00:19:00 +00:00
LoopDeletion
LoopIndexSplit	Check for side effects before splitting loop.	2010-05-03 18:06:58 +00:00
LoopRotate	Teach loop rotate to hoist trivially invariant instructions	2010-09-06 01:10:22 +00:00
LoopSimplify	Fix LoopSimplify to notify ScalarEvolution when splitting a loop backedge	2010-09-04 02:42:48 +00:00
LoopStrengthReduce	Correct bogus module triple specifications.	2010-08-30 10:48:29 +00:00
LoopUnroll	Revert r113439, which relaxed the requirement that loops containing calls cannot be unrolled. After some discussion,	2010-09-09 20:02:23 +00:00
LoopUnswitch	Fix loop unswitching's assumption that a code path which either	2010-09-01 21:46:45 +00:00
LowerAtomic	Add an atomic lowering pass	2010-08-03 16:19:16 +00:00
LowerInvoke
LowerSetJmp
LowerSwitch
Mem2Reg	Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info.	2010-06-04 22:27:30 +00:00
MemCpyOpt
MergeFunc	Arrays and vectors with different numbers of elements are not equivalent.	2010-07-16 06:31:12 +00:00
PartialSpecialize	Fixed and reactivated a partial specialization test	2010-08-19 12:42:38 +00:00
PruneEH	fix some failures my callgraph dump format change broke.	2010-04-23 18:38:40 +00:00
Reassociate
ScalarRepl	deepen my MMX/SRoA hack to avoid hurting non-x86 codegen.	2010-09-01 23:09:27 +00:00
SCCP	fix PR7876: If ipsccp decides that a function's address is taken	2010-08-12 22:25:23 +00:00
SimplifyCFG	Correct bogus module triple specifications.	2010-08-30 10:48:29 +00:00
SimplifyLibCalls	Make sure that simplify libcalls does not replace a call with one calling	2010-06-16 19:34:01 +00:00
Sink	Add an LLVM IR version of code sinking. This uses the same simple algorithm	2010-05-07 15:40:13 +00:00
SRETPromotion
StripSymbols	DIGlobalVariable can be used to encode debug info for globals that are directly folded into a constant by FE.	2010-08-25 18:52:02 +00:00
TailCallElim	merge two tests.	2010-08-31 18:44:03 +00:00
TailDup	The output of opt -stats must be sent to stderr. Patch by NAKAMURA Takumi!	2010-09-01 18:32:56 +00:00