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Author SHA1 Message Date
Chris Lattner
c34c2200a8 inline function into its only caller. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 19:28:28 +00:00
Chris Lattner
cb7f653422 two changes: 1) make AliasSet hold the list of call sites with an 
assertingvh so we get a violent explosion if the pointer dangles.

2) Fix AliasSetTracker::deleteValue to remove call sites with
   by-pointer comparisons instead of by-alias queries.  Using
   findAliasSetForCallSite can cause alias sets to get merged
   when they shouldn't, and can also miss alias sets when the
   call is readonly.

#2 fixes PR6889, which only repros with a .c file :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112452 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 18:42:23 +00:00
Chris Lattner
0de5cad74d LICM does get dead instructions input to it. Instead of sinking them 
out of loops, just delete them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112451 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 18:22:25 +00:00
Chris Lattner
d9a5daeb77 use moveBefore instead of remove+insert, it avoids some 
symtab manipulation, so its faster (in addition to being
more elegant)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112450 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 18:18:40 +00:00
Chris Lattner
1b9c848d0a revert 112448 for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 18:11:16 +00:00
Chris Lattner
bb07ed3bb5 optimize LICM::hoist to use moveBefore. Correct its updating 
of AST to remove the hoisted instruction from the AST, since it
is no longer in the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 18:03:33 +00:00
Chris Lattner
98917503c7 fix some bugs (found by inspection) where LICM would not update 
LICM correctly.  When sinking an instruction, it should not add
entries for the sunk instruction to the AST, it should remove
the entry for the sunk instruction.  The blocks being sunk to
are not in the loop, so their instructions shouldn't be in the
AST (yet)!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112447 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 18:00:00 +00:00
Chris Lattner
4282e32712 rework the ownership of subloop alias information: instead of 
keeping them around until the pass is destroyed, keep them
around a) just when useful (not for outer loops) and b) destroy
them right after we use them.  This should reduce memory use
and fixes potential bugs where a loop is deleted and another
loop gets allocated to the same address.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112446 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 17:46:00 +00:00
Chris Lattner
ea1092374c apparently unswitch had the same "Feature". Stop its 
claims that it preserves domfrontier if it doesn't really.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112445 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 17:23:19 +00:00
Chris Lattner
937790195e now that loop passes don't use DomFrontier, there is no reason 
for the unroller to pretend it supports updating it.  It still
has a horrible hack for DomTree.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112444 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 17:21:35 +00:00
Dan Gohman
eaa40ff74e Make IVUsers iterative instead of recursive. 
This has the side effect of reversing the order of most of
IVUser's results.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112442 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 16:40:03 +00:00
Dan Gohman
4f7e18dee3 Optionally rerun dedicated-register filtering after applying 
other filtering techniques, as those may allow it to filter
out more obviously unprofitable candidates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 16:39:22 +00:00
Dan Gohman
25608f7f4b Fix several areas in LSR to do a better job keeping the main 
LSRInstance data structures up to date. This fixes some
pessimizations caused by stale data which will be exposed
in an upcoming change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 16:32:54 +00:00
Dan Gohman
4aa5c2e90f Refactor the three main groups of code out of 
NarrowSearchSpaceUsingHeuristics into separate functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112439 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 16:09:42 +00:00
Dan Gohman
e39a47c5b3 Delete a bogus check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 15:30:29 +00:00
Dan Gohman
6a83271532 Add some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112437 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 15:27:08 +00:00
Dan Gohman
3902f9fca8 Move this debug output into GenerateAllReuseFormula, to declutter 
the high-level logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112436 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 15:21:38 +00:00
Dan Gohman
a7d0d64b7a Delete an unused declaration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112435 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 15:19:11 +00:00
Dan Gohman
46fd7a6ef8 Do one lookup instead of two. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112434 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 15:18:49 +00:00
Dan Gohman
d578a40853 Restructure the {A,+,B}<L> * {C,+,D}<L> folding so that it folds 
all applicable addrecs before recursing on getMulExpr, instead of
recursing on getMulExpr for each one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112433 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 15:16:58 +00:00
Dan Gohman
b8fc62bc58 Batch up subtracts along with adds, when analyzing long chains of 
operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112432 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 15:10:06 +00:00
Dan Gohman
c6a8e99fb3 Micro-optimize GroupByComplexity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112431 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 15:07:13 +00:00
Dan Gohman
0f32ae3aa7 Hold AddRec->getLoop() in a variable, to make the Mul code more consistent 
with the Add code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112430 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 14:55:19 +00:00
Dan Gohman
30cbc860f8 Rename a variable, for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112429 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 14:53:34 +00:00
Dan Gohman
7e1fee7ece Use iterators instead of indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112428 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 14:52:02 +00:00
Dan Gohman
8f49168c4c Don't worry about union types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112427 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 14:50:21 +00:00
Dan Gohman
2b5258c5f9 Make this test less dependent on register allocation choices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112426 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 14:49:42 +00:00
Dan Gohman
05841638a7 Use exec. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112425 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 14:49:00 +00:00
Dan Gohman
c9fa2cd596 Delete an unused declaration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112424 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 14:48:15 +00:00
Kalle Raiskila
bd887df8b9 Fix lowering of INSERT_VECTOR_ELT in SPU. 
The IDX was treated as byte index, not element index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112422 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 12:41:50 +00:00
Bill Wendling
10ce7f3116 Fix whitespaces. No functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112421 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 11:31:07 +00:00
Chris Lattner
8bfc4299c2 Stop explicitly scheduling domfrontier before the loop passes, 
since none of them use it.  With this, we now only run 
domfrontier (an N^2 analysis) 3 times at clang -O3: once for 
"early" per-function cleanup, once at the start of the
per-function pipeline to support SRoA, and once late because
the EHPrepare class uses it.

EHPrepare needs to stop using it, this is silly and wasteful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112420 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 07:05:51 +00:00
Chris Lattner
e418ac832c licm preserves the cfg, it doesn't have to explicitly say it 
preserves domfrontier.  It does preserve AA though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112419 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 07:02:56 +00:00
Chris Lattner
44e2bd31f1 now that it doesn't use the PromoteMemToReg function, LICM doesn't 
require DomFrontier.  Dropping this doesn't actually save any runs
of the pass though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112418 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 06:49:44 +00:00
Chris Lattner
e488064922 completely rewrite the memory promotion algorithm in LICM. 
Among other things, this uses SSAUpdater instead of 
PromoteMemToReg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112417 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 06:43:52 +00:00
Bob Wilson
04d6c289ab Remove NEON vaddl, vaddw, vsubl, and vsubw intrinsics. Instead, use llvm 
IR add/sub operations with one or both operands sign- or zero-extended.
Auto-upgrade the old intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112416 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 05:57:34 +00:00
Chris Lattner
63a75c13b1 use getUniqueExitBlocks instead of a manual set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112412 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 05:12:21 +00:00
Eli Friedman
5033f64694 A couple of small missed optimizations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112411 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 05:07:40 +00:00
Chris Lattner
a6a36f59b4 reimplement LICM::sink to use SSAUpdater instead of PromoteMemToReg. 
This leads to much simpler code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 04:55:06 +00:00
Chris Lattner
ffd9beefb8 implement SSAUpdater::RewriteUseAfterInsertions, a helpful form of RewriteUse. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112409 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 04:54:06 +00:00
Chris Lattner
abd2a75900 remove dead proto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 04:53:24 +00:00
Chris Lattner
d7bc19dfee reduce indentation in LICM::sink by using early exits, use 
getUniqueExitBlocks instead of getExitBlocks and a manual
set to eliminate dupes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112405 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 04:28:20 +00:00
Chris Lattner
dc1ceb370a modernize this pass a bit: use efficient set/map and reduce indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112404 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 04:23:04 +00:00
Duncan Sands
6654ff2741 Flesh out the list of things I've worked on. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112403 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 04:22:35 +00:00
Chris Lattner
fedac7d9b0 when merging two alias sets, the result set is volatile if either 
of the sets is volatile.  We were dropping the volatile bit of the
merged in set, leading (luckily) to assertions in cases like 
PR7535.  I cannot produce a testcase that repros with opt, but this
is obviously correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 04:14:47 +00:00
Chris Lattner
9476d746d6 more cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112401 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 04:13:43 +00:00
Chris Lattner
6e1f51099d clean this up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112400 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 04:06:55 +00:00
Bill Wendling
1f7bf0e1f5 - Add a parameter to T2I_bin_irs for those patterns which set the S bit. 
- Create T2I_bin_sw_irs to be like T2I_bin_w_irs, but that it sets the S bit.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112399 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 03:55:31 +00:00
Chris Lattner
82457d08f9 merge a bunch of shuffle tests into sse2.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 03:19:04 +00:00
Chris Lattner
4644a936dc add a bunch more common shuffles to the instprinter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112397 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-29 03:08:08 +00:00