Owen Anderson
bf7d0bc4e5
Don't let the memory allocator outsmart GVN. ;-)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40655 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 23:27:13 +00:00
Owen Anderson
b95f9d565f
Fix a failure I accidentally caused in my last commit by mishandling the
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removal of redundant phis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40650 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 20:18:28 +00:00
Lauro Ramos Venancio
c7d1114ade
Fix a bug in GetKnownAlignment of packed structs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40649 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 20:13:21 +00:00
Owen Anderson
054ab94bff
Fix a misoptimization in aha.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40642 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 17:43:14 +00:00
Dan Gohman
a9cfed77b6
Use SCEVExpander::InsertCastOfTo instead of calling new IntToPtrInst
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directly, because the insert point used by the SCEVExpander may vary
from what LSR originally computes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40641 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 17:22:27 +00:00
Devang Patel
8d246f09cb
Add note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40638 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 16:52:25 +00:00
Devang Patel
15c260adff
Loop unswitch preserves dom info.
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Use simple analysis interface to preserve analysis info maintained by other loop passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40627 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 08:03:26 +00:00
Devang Patel
91d22c8b1e
Implement Simple Analysis interfaces - cloneBasicBlockAnalysis and deleteAnalysisValue.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40626 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-31 08:01:41 +00:00
Devang Patel
6f62af6e64
If loop can be unswitched again, then do it yourself.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40609 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-30 23:07:10 +00:00
Owen Anderson
891eecb040
Avoid potential iterator invalidation problems.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40607 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-30 21:26:39 +00:00
Devang Patel
df5cf2074c
Remove dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40606 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-30 21:10:44 +00:00
Devang Patel
81a129c0fb
LCSSA preserves dom info.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40604 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-30 20:23:45 +00:00
Devang Patel
d9a6dcba9f
Loop Rotation pass preserves dominator tree and frontier.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40603 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-30 20:22:53 +00:00
Devang Patel
96b651c627
LICM preserves scalar evolution and dom frontier.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40602 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-30 20:19:59 +00:00
Reid Spencer
ed3fa8552a
Fix a typo/thinko.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40599 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-30 19:53:57 +00:00
Owen Anderson
45c8388e2a
Use more caching when computing non-local dependence. This makes bzip2 not
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use up the entire 32-bit address space.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40596 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-30 17:29:24 +00:00
Owen Anderson
4f9ba7c40c
Fix a bug caused by indiscriminantly asking for the dominators of a predecessor.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40595 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-30 16:57:08 +00:00
Devang Patel
29381fb7cd
Use SmallPtrSet.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40560 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-27 18:34:27 +00:00
Chuck Rose III
936baaa5ae
VStudio compiler errors and placing Function*->ExFunc map under ManagedStatic control.
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This commit fixes two things. One is a pair of VStudio compiler errors stemming from variables
which defined within the for loop statement and also within the body of the for loop. I fixed these
by renaming one of the two variables. Additionally, I've made the Function*->ExFunc map in
ExternalFunctions.cpp a ManagedStatic object, so that cleanup will be done on llvm_shutdown. In repeated
uses of the interpreter, where the same Function* address may get used for completely differnet functions,
this was causing a crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40558 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-27 18:26:35 +00:00
Devang Patel
70b36d96b3
Fix thinko. Update return status appropriately.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40546 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-26 20:21:42 +00:00
Owen Anderson
45537917ee
Fix a couple more bugs in the phi construction by pulling in code that does
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almost the same things from LCSSA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40540 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-26 18:26:51 +00:00
Dan Gohman
37f3ee17d2
Move the GET_SIDE_EFFECT_INFO logic from isInstructionTriviallyDead
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to Instruction::mayWriteToMemory, fixing a FIXME, and helping
various places that call mayWriteToMemory directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40533 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-26 16:06:08 +00:00
Dan Gohman
c2dfd066c0
Remove a bogus return statement, what appears to have been a pasto
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from Relation::contradicts in Relation::incorporate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40531 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-26 15:29:35 +00:00
Owen Anderson
febc7e3613
Fix what is _hopefully_ the last corner case for loops.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40503 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-25 23:54:42 +00:00
Owen Anderson
9f435740b1
My last commit was not correct for nested loops. Fix it, and add a testcase for it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40498 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-25 22:19:40 +00:00
Owen Anderson
0d16988690
Fix an infinite loop on 300.twolf.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40497 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-25 22:03:06 +00:00
Owen Anderson
2e3d6b4a27
Fix a bug that was causing GVN to crash on 252.eon.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40494 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-25 21:13:41 +00:00
Owen Anderson
0cd320362e
Add basic support for performing whole-function RLE.
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Note: This has not yet been thoroughly tested. Use at your own risk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40489 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-25 19:57:03 +00:00
Devang Patel
6899b31422
Add BasicInliner interface.
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This interface allows clients to inline bunch of functions with module
level call graph information.:wq
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40486 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-25 18:00:25 +00:00
Owen Anderson
1ad2cb7555
Add a GVN pass, using the value numbering code I developed for GVNPRE and the
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load elimination code from RedundantLoadElimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40469 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-24 17:55:58 +00:00
Owen Anderson
a7f98e2919
Rename a lot of things to change FastDLE to RedundantLoadElimination.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40457 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-24 00:17:04 +00:00
Owen Anderson
e2a1624da3
Rename FastDLE as RedundantLoadElimination.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40456 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-24 00:08:38 +00:00
Owen Anderson
6b8894bb67
Don't delete volatile loads. Doing so is not safe.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40448 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-23 22:05:54 +00:00
Owen Anderson
ffe40aa97d
Add FastDLE, the load-elimination counterpart of FastDSE.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40445 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-23 21:48:08 +00:00
Owen Anderson
d989711844
Fix file header.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40440 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-23 18:30:37 +00:00
Chris Lattner
410ce1c49a
completely remove a transformation that is unsafe in the face of
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undefs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40439 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-23 17:10:17 +00:00
Devang Patel
00ae1a2f02
Apply temporary work around to fix llvm mis-compilation
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reported in PR 1556.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40133 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-21 00:34:29 +00:00
Chris Lattner
3ccc6bc61c
this xform is already done by the constant folder.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40124 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20 22:06:41 +00:00
Dan Gohman
9941f7426d
Optimize alignment of loads and stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40102 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20 16:34:21 +00:00
Duncan Sands
e2abf12436
Place SCCPSolver also in the anonymous namespace. This
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pacifies g++-4.2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40089 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20 08:56:21 +00:00
Owen Anderson
c9399be5e5
Fix a bug where we were marking GEP expressions with the wrong opcode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40085 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20 08:19:20 +00:00
Owen Anderson
b83e56f6b6
Make val_replace fail early, which reduces the time to optimize 403.gcc to 14.8s.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40064 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 19:57:13 +00:00
Devang Patel
58e0ef1e90
Verify loop info.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40062 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 18:02:32 +00:00
Owen Anderson
19bc4a8acd
Use SmallVector and DenseMap in even more places.
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With this, the time to optimize 403.gcc is down to 15.1s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40042 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 06:37:56 +00:00
Owen Anderson
fb66541e63
Change ValueTable to use a DenseMap for mapping expressions to value numbers.
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This results in a slight speedup for 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40040 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 06:13:15 +00:00
Owen Anderson
b97819852a
Move some sets and maps to SmallPtrSet and DenseMap respectively. This
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reduces the time to optimize 403.gcc from 17.6s to 16.4s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40036 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 03:32:44 +00:00
Devang Patel
a8a8a36629
After a basic block is split into two parts,
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second part dominates all the blocks dominated
by original basic block. And first part dominates
second part.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40035 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 02:29:24 +00:00
Devang Patel
72ea8d9060
Now this temp. fix is not required.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40034 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-19 02:22:21 +00:00
Devang Patel
24857a3fac
Fix typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40025 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-18 23:50:19 +00:00
Devang Patel
31ad75329e
Fix dominator info update to accommodate CFG changes.
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This fixes PR1559.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40024 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-18 23:48:20 +00:00