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2826 Commits

Author SHA1 Message Date
David Greene
c8b577197f Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92050
 2009-12-23 21:27:29 +00:00
David Greene
fd7042fa79 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92048
 2009-12-23 21:16:54 +00:00
David Greene
28b8bcd98d Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92046
 2009-12-23 21:06:14 +00:00
David Greene
33f717c804 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92042
 2009-12-23 20:52:41 +00:00
David Greene
016e0af68d Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92040
 2009-12-23 20:43:58 +00:00
David Greene
1c88ae8f15 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92039
 2009-12-23 20:34:27 +00:00
David Greene
e34eb9cc32 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92037
 2009-12-23 20:20:46 +00:00
David Greene
a2539e0ff7 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92035
 2009-12-23 20:10:59 +00:00
David Greene
2a072c7ac5 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92034
 2009-12-23 20:03:58 +00:00
David Greene
218c909299 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92033
 2009-12-23 19:51:44 +00:00
David Greene
bcfb683e76 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92032
 2009-12-23 19:45:49 +00:00
David Greene
b7dde86ae2 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92029
 2009-12-23 19:27:59 +00:00
David Greene
f0082114af Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92026
 2009-12-23 19:21:19 +00:00
David Greene
4d8f4303bd Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.

llvm-svn: 92024
 2009-12-23 19:15:13 +00:00
Chris Lattner
cd79ebb23c The phi translated pointer can be computed when returning a partially cached result 
instead of stored.  This reduces memdep memory usage, and also eliminates a bunch of
weakvh's.  This speeds up gvn on gcc.c-torture/20001226-1.c from 23.9s to 8.45s (2.8x)
on a different machine than earlier.

llvm-svn: 91885
 2009-12-22 04:25:02 +00:00
Chris Lattner
15c2988820 avoid calling extractMallocCall when it's obvious we don't have 
a call.  This speeds up memdep ~1.5%

llvm-svn: 91869
 2009-12-22 01:00:32 +00:00
Chris Lattner
07f0e8ec8a fix an overly conservative caching issue that caused memdep to 
cache a pointer as being unavailable due to phi trans in the
wrong place.  This would cause later queries to fail even when
they didn't involve phi trans.

llvm-svn: 91787
 2009-12-19 21:29:22 +00:00
Dan Gohman
a9cdf5b0d8 Fix a spello in a comment that Nick spotted. 
llvm-svn: 91742
 2009-12-19 01:46:34 +00:00
Dan Gohman
4e04fb5ca8 Eliminate unnecessary LLVMContexts. 
llvm-svn: 91729
 2009-12-18 23:42:08 +00:00
Dan Gohman
f4af7d049c Make this comment more precise. 
llvm-svn: 91722
 2009-12-18 23:18:03 +00:00
Dan Gohman
34f714b928 Revert this use of NUW/NSW also. Overflow-undefined multiplication isn't 
associative either.

llvm-svn: 91701
 2009-12-18 18:45:31 +00:00
Dan Gohman
2e46566444 Revert this use of NSW; this one isn't actually safe. NSW addition 
is not reassociative.

llvm-svn: 91667
 2009-12-18 03:57:04 +00:00
Dan Gohman
ec766ea441 Delete an unused variable. 
llvm-svn: 91659
 2009-12-18 02:14:37 +00:00
Dan Gohman
91b1161840 Preserve NSW information in more places. 
llvm-svn: 91656
 2009-12-18 02:09:29 +00:00
Dan Gohman
0f8f7f179d Add Loop contains utility methods for testing whether a loop 
contains another loop, or an instruction. The loop form is
substantially more efficient on large loops than the typical
code it replaces.

llvm-svn: 91654
 2009-12-18 01:24:09 +00:00
Dan Gohman
7c0f6a6c1b Whitespace cleanups. 
llvm-svn: 91651
 2009-12-18 01:14:11 +00:00
Dan Gohman
c483bed5e8 Reapply LoopStrengthReduce and IVUsers cleanups, excluding the part 
of 91296 that caused trouble -- the Processed list needs to be
preserved for the livetime of the pass, as AddUsersIfInteresting
is called from other passes.

llvm-svn: 91641
 2009-12-18 00:06:20 +00:00
Evan Cheng
18e334195d Revert 91280-91283, 91286-91289, 91291, 91293, 91295-91296. It apparently introduced a non-deterministic behavior in the optimizer somewhere. 
llvm-svn: 91598
 2009-12-17 09:39:49 +00:00
Chris Lattner
ea6ba0d59b Fix GetConstantStringInfo to not look into MDString (it works on 
real data, not metadata) and fix DbgInfoPrinter to not abuse
GetConstantStringInfo.

llvm-svn: 91444
 2009-12-15 19:34:20 +00:00
Devang Patel
ffb33d1df8 Add support to emit debug info for C++ namespaces. 
llvm-svn: 91440
 2009-12-15 19:16:48 +00:00
Chris Lattner
587962c667 Remove isPod() from DenseMapInfo, splitting it out to its own 
isPodLike type trait.  This is a generally useful type trait for
more than just DenseMap, and we really care about whether something
acts like a pod, not whether it really is a pod.

llvm-svn: 91421
 2009-12-15 07:26:43 +00:00
John McCall
6bf01a2caf You can't use typedefs to declare template member specializations, and 
clang enforces it.

llvm-svn: 91397
 2009-12-15 02:35:24 +00:00
Dan Gohman
106fce040d Clear the Processed set when it is no longer used, and clear the 
IVUses list in releaseMemory().

llvm-svn: 91296
 2009-12-14 17:35:17 +00:00
Dan Gohman
abb2ea84d9 Fix a thinko; isNotAlreadyContainedIn had a built-in negative, so the 
condition was inverted when the code was converted to contains().

llvm-svn: 91295
 2009-12-14 17:31:01 +00:00
Dan Gohman
c6a7652b5e Drop Loop::isNotAlreadyContainedIn in favor of Loop::contains. The 
former was just exposing a LoopInfoBase implementation detail.

llvm-svn: 91286
 2009-12-14 17:06:50 +00:00
Dan Gohman
c22d542754 Make getUniqueExitBlocks's precondition assert more precise, to 
avoid spurious failures. This fixes PR5758.

llvm-svn: 91147
 2009-12-11 20:05:23 +00:00
Dan Gohman
663165c16f Reuse the Threshold value to size these containers because it's 
currently somewhat convenient for them to have the same value.

llvm-svn: 90980
 2009-12-09 18:48:53 +00:00
Chris Lattner
2f9b661ab8 Add a minor optimization: if we haven't changed the operands of an 
add, there is no need to scan the world to find the same add again.
This invalidates the previous testcase, which wasn't wonderful anyway,
because it needed a run of instcombine to permute the use-lists in 
just the right way to before GVN was run (so it was really fragile).
Not a big loss.

llvm-svn: 90973
 2009-12-09 17:27:45 +00:00
Chris Lattner
e05f9a128c fix PR5733, a case where we'd replace an add with a lexically identical 
binary operator that wasn't an add.  In this case, a xor.  Whoops.

llvm-svn: 90971
 2009-12-09 17:18:49 +00:00
Chris Lattner
366b8ac755 enhance NonLocalDepEntry to keep the per-block phi translated address 
of the query.

llvm-svn: 90958
 2009-12-09 07:31:04 +00:00
Chris Lattner
e0207b46d2 change NonLocalDepEntry from being a typedef for an std::pair to be its 
own small class.  No functionality change.

llvm-svn: 90956
 2009-12-09 07:08:01 +00:00
Chris Lattner
dda5ca59e2 Switch GVN and memdep to use PHITransAddr, which correctly handles 
phi translation of complex expressions like &A[i+1].  This has the
following benefits:

1. The phi translation logic is all contained in its own class with
   a strong interface and verification that it is self consistent.

2. The logic is more correct than before.  Previously, if intermediate
   expressions got PHI translated, we'd miss the update and scan for
   the wrong pointers in predecessor blocks.  @phi_trans2 is a testcase
   for this.

3. We have a lot less code in memdep.

We can handle phi translation across blocks of things like @phi_trans3,
which is pretty insane :).

This patch should fix the miscompiles of 255.vortex, and I tested it 
with a bootstrap of llvm-gcc, llvm-test and dejagnu of course.

llvm-svn: 90926
 2009-12-09 01:59:31 +00:00
Chris Lattner
9c2474e272 fix a nasty variable that was shadowing the real CurBB but with the wrong value. 
llvm-svn: 90920
 2009-12-09 01:19:16 +00:00
Chris Lattner
3211af28ba fix many input tracking bugs. 
llvm-svn: 90915
 2009-12-09 00:56:14 +00:00
Dan Gohman
ed3d370a10 Fix a typo in a comment, and adjust SmallSet and SmallVector sizes, 
that Chris noticed.

llvm-svn: 90910
 2009-12-09 00:28:42 +00:00
Chris Lattner
c457aaea0d fix PHI translation to take the PHI out of the instinputs set and add 
the translated value back to it if an instruction.

llvm-svn: 90909
 2009-12-09 00:18:13 +00:00
Chris Lattner
b0d20540ad instructions defined in CurBB may be intermediate nodes of the computation. 
llvm-svn: 90908
 2009-12-09 00:10:55 +00:00
Chris Lattner
83cb0b1450 add dumping and sanity checking support. 
llvm-svn: 90906
 2009-12-09 00:01:00 +00:00
Dan Gohman
2d7d4fb9a6 Put a threshold on the number of users PointerMayBeCaptured 
examines; fall back to a conservative answer if there are
more. This works around some several compile time problems
resulting from BasicAliasAnalysis calling PointerMayBeCaptured.

The value has been chosen arbitrarily.

This fixes rdar://7438917 and may partially address PR5708.

llvm-svn: 90905
 2009-12-08 23:59:12 +00:00
Chris Lattner
604cebbfc1 make sure that PHITransAddr keeps its 'InstInputs' list up to 
date when instsimplify kicks in.

llvm-svn: 90901
 2009-12-08 23:42:51 +00:00