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77f86ad087
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26224 Commits

Author SHA1 Message Date
Evan Cheng
77f86ad087 DisableGVCompilation should not abort on internal GlobalValue's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60750 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 07:31:49 +00:00
Mon P Wang
1cd46bbb1c In LegalizeOp, don't change the result type of CONVERT_RNDSAT when promoting 
one of its operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60749 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 07:27:39 +00:00
Nick Lewycky
0bed364307 It's easy to handle SLE/SGE when the loop has a unit stride. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60748 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 07:25:04 +00:00
Chris Lattner
ba4dacc875 if we have two elements, insert both, don't use std::sort. 
This speeds up the new GVN by another 3%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60747 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 07:05:45 +00:00
Chris Lattner
1aeadacdad If we're only adding one new element to 'Cache', insert it into its known 
position instead of using a full sort. This speeds up GVN by ~4% with the
new memdep stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 06:58:04 +00:00
Chris Lattner
511b36c00f convert a couple other places that use pred_iterator to use the caching 
pred iterator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60745 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 06:44:17 +00:00
Chris Lattner
4012fdda13 use hte new pred cache to speed up the new non-local memdep 
queries.  This speeds up GVN using the new queries (not yet
checked in) by just over 10%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60743 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 06:28:49 +00:00
Mon P Wang
e9f1015d1f Fix getNode to allow a vector for the shift amount for shifts of vectors. 
Fix the shift amount when unrolling a vector shift into scalar shifts.
Fix problem in getShuffleScalarElt where it assumes that the input of
a bit convert must be a vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60740 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 05:46:39 +00:00
Chris Lattner
46a879ebd3 Fix a really subtle off-by-one bug that Duncan noticed with valgrind 
on test/CodeGen/Generic/2007-06-06-CriticalEdgeLandingPad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60739 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 04:47:21 +00:00
Scott Michel
e07d3dead1 CellSPU: 
- Change default scheduling preference to list-burr, which produces somewhat
  better code than the default. Could also use list-tdrr, but need to ask
  dev list about the appropriate handy mnemonic before commiting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60738 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 03:37:19 +00:00
Bill Wendling
52370a1089 Add initial support for fast-isel of the [SU]ADDO intrinsics. It isn't 
complete. For instance, it lowers the common case into this less-than-optimal
code:

        addl    %ecx, %eax
        seto    %cl
        testb   %cl, %cl
        jne     LBB1_2  ## overflow

instead of:

        addl    %ecx, %eax
        jo      LBB1_2  ## overflow

That will come in a future commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60737 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 02:42:50 +00:00
Dan Gohman
aeac8f9cb4 Don't charge full latency for an anti-dependence, in this simplistic 
pipeline model.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60733 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-09 00:26:46 +00:00
Dan Gohman
55fdaec36a Fix a couple of mistaken switch case fall-throughs. Thanks to Bill 
for spotting these!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60728 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 23:50:06 +00:00
Chris Lattner
20fa76ef6f remove DebugIterations option. Despite the accusations, 
jump threading has been shown to only expose problems not
have bugs itself.  I'm sure it's completely bug free! ;-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60725 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 22:44:07 +00:00
Evan Cheng
e4d1082b2c Re-apply 60689 now my head is screwed on right. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 19:29:03 +00:00
Dan Gohman
a629b48a66 Fix the top-level comments, and fix some 80-column violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60707 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 17:50:35 +00:00
Dan Gohman
2d4e9bc922 Revert 60689. It caused many regressions on Darwin targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60705 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 17:38:02 +00:00
Devang Patel
042b877e84 Fix spelling. 
Thanks Duncan!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60702 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 17:07:24 +00:00
Devang Patel
6d9896f153 Undo previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60701 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 17:02:37 +00:00
Duncan Sands
1832705b06 Fix comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 14:01:59 +00:00
Dan Gohman
c8a1a3c426 Factor out the code for sign-extending/truncating gep indices 
and use it in x86 address mode folding. Also, make
getRegForValue return 0 for illegal types even if it has a
ValueMap for them, because Argument values are put in the
ValueMap. This fixes PR3181.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60696 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 07:57:47 +00:00
Chris Lattner
11dcd8d38d add another level of caching for non-local pointer queries, keeping 
track of whether the CachedNonLocalPointerInfo for a block is specific
to a block.  If so, just return it without any pred scanning.  This is
good for a 6% speedup on GVN (when it uses this lookup method, which
it doesn't right now).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 07:31:50 +00:00
Chris Lattner
59779c5605 consistency 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60694 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 07:21:39 +00:00
Chris Lattner
bedb8c1d35 introduce a new RoundUpAlignment helper function, use it to 
remove some more 64-bit divs and rems from the StructLayout 
ctor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60692 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 07:11:56 +00:00
Dan Gohman
149cfc3519 Make ConstantAggregateZero::get return a ConstantAggregateZero*, 
as suggested in PR3182.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60691 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 07:10:54 +00:00
Dan Gohman
f923129fc3 Update CPP backend for PrintModulePass API changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60690 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 07:07:24 +00:00
Evan Cheng
dda346aa71 Perform cheap checks first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60689 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 06:52:43 +00:00
Chris Lattner
295d4e953a Some minor optimizations for isObjectSmallerThan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 06:28:54 +00:00
Dan Gohman
2e3e5bf427 Move createVirtualRegister out-of-line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60684 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 04:54:11 +00:00
Dan Gohman
c93ced5b34 Clarify some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60683 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 04:53:23 +00:00
Nick Lewycky
28ea4f6c07 Fixes for Visual Studio users. Patch by OvermindDL1 on llvm-dev! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60679 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 00:45:02 +00:00
Chris Lattner
3f7eb5b795 add an assert. the cast<> below would catch this but a message is more 
useful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 18:45:15 +00:00
Chris Lattner
0655f73ef7 factor some code better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60673 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 18:42:51 +00:00
Chris Lattner
d44745d241 factor some code, fixing some fixme's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60672 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 18:39:13 +00:00
Chris Lattner
6290f5cac2 add support for caching pointer dependence queries. Nothing uses this yet 
so it "can't" break anything.  That said, it does appear to work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60654 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 08:50:20 +00:00
Chris Lattner
a16ead8b10 fix a bug I introduced in simplifycfg handling single entry phi 
nodes. FoldSingleEntryPHINodes deletes the PHI, so there is no
need to delete it afterward.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60653 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 07:22:45 +00:00
Owen Anderson
75c99c5aa8 Switch to top-down mode and fix a crasher this exposed caused by an error in the 
live interval updating.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60652 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 05:33:18 +00:00
Nick Lewycky
6ecf5ce3e3 Fix typo, psuedo -> pseudo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60651 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 03:49:52 +00:00
Chris Lattner
9a193fd8ae Some internal refactoring to make it easier to cache results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60650 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 02:56:57 +00:00
Chris Lattner
7ebcf03246 Introduce a new MemDep::getNonLocalPointerDependency 
method.  This will eventually take over load/store dep
queries from getNonLocalDependency.  For now it works
fine, but is incredibly slow because it does no caching.
Lets not switch GVN to use it until that is fixed :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60649 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 02:15:47 +00:00
Chris Lattner
e79be944c8 push the "pointer case" up the analysis stack a bit. This causes 
duplication of logic (in 2 places) to determine what pointer a 
load/store touches.  This will be addressed in a future commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60648 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 01:50:16 +00:00
Chris Lattner
d8dd934d16 make clients have to know how to call getCallSiteDependencyFrom 
instead of making getDependencyFrom do it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60647 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 01:21:14 +00:00
Chris Lattner
106c6ca7b0 rename some variables for consistency 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60644 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 00:39:19 +00:00
Chris Lattner
fbc72e3e61 I love how using out of scope variables is not an error with GCC, no really I do. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60643 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 00:38:27 +00:00
Chris Lattner
8ef57c5faf Rename getCallSiteDependency -> getCallSiteDependencyFrom to 
emphasize the scanning and make it more similar to 
getDependencyFrom
 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60642 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 00:35:51 +00:00
Chris Lattner
745291a6ce a memdep query on a volatile load/store will always return 
clobber with the current implementation.  Instead of returning
a "precise clobber" just return a fuzzy one.  This doesn't 
matter to any clients anyway and should speed up analysis time
very very slightly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60641 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 00:28:02 +00:00
Chris Lattner
f760be1c7f don't bother touching volatile stores, they will just return clobber on 
everything interesting anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60640 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 00:25:15 +00:00
Chris Lattner
84b9a56d11 remove the ability to get memdep info for vaarg. I don't think the 
original impl was correct and noone actually makes the query anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60639 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 00:21:18 +00:00
Chris Lattner
630c99fd21 improve a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60636 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-07 00:15:10 +00:00
Chris Lattner
6a09a74e46 some more PRE/GVN/DSE related notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60633 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-06 22:52:12 +00:00