Dan Gohman
1c034dcbbc
Use the getUniquePredecessor() utility function, instead of doing
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what it does manually.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111248 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 17:07:02 +00:00
Evan Cheng
e1bcb440dc
Add an option to disable codegen prepare critical edge splitting. In theory, PHI elimination is already doing all (most?) of the splitting needed. But machine-licm and machine-sink seem to miss some important optimizations when splitting is disabled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111224 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17 01:34:49 +00:00
Dan Gohman
3e22b7c916
Instead of having CollectSubexpr's categorize operands as interesting or
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uninteresting, just put all the operands on one list and make
GenerateReassociations make the decision about what's interesting.
This is simpler, and it avoids an extra ScalarEvolution::getAddExpr call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111133 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 15:50:00 +00:00
Dan Gohman
4065f60912
Put add operands in ScalarEvolution-canonical order, when convenient.
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This isn't necessary, because ScalarEvolution sorts them anyway,
but it's tidier this way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111132 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 15:39:27 +00:00
Dan Gohman
ebd9923bd8
Avoid #include <ScalarEvolution.h> in LoopSimplify.cpp, which doesn't
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actually use ScalarEvolution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111124 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 14:44:03 +00:00
Dan Gohman
7a4994356b
Instead, teach SimplifyCFG to trim non-address-taken blocks from
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indirectbr destination lists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111122 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 14:41:14 +00:00
Dan Gohman
c2f40066bb
LoopSimplify shouldn't split loop backedges that use indirectbr. PR7867.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 00:43:09 +00:00
Dan Gohman
e2c6d131d1
Teach SimplifyCFG how to simplify indirectbr instructions.
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- Eliminate redundant successors.
- Convert an indirectbr with one successor into a direct branch.
Also, generalize SimplifyCFG to be able to be run on a function entry block.
It knows quite a few simplifications which are applicable to the entry
block, and it only needs a few checks to avoid trouble with the entry block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111060 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 00:29:42 +00:00
Dan Gohman
e62d58884a
Fix LSR's ExtractImmediate and ExtractSymbol to avoid calling
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ScalarEvolution::getAddExpr, which can be pretty expensive, when nothing
has changed, which is pretty common.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111042 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 21:17:19 +00:00
Nate Begeman
7f1f4089a1
Reapply this transformation now that it is passing the external test which it previously failed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110987 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 00:17:53 +00:00
Chris Lattner
1522ce9770
fix PR7876: If ipsccp decides that a function's address is taken
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before it rewrites the code, we need to use that in the post-rewrite pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-12 22:25:23 +00:00
Eric Christopher
7486278900
Temporarily revert 110737 and 110734, they were causing failures
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in an external testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110905 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-12 07:01:22 +00:00
Nate Begeman
95743d8748
Add the minimal amount of smarts necessary to instcombine of shufflevectors to recognize
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patterns generated by clang for transpose of a matrix in generic vectors. This is made
of two parts:
1) Propagating vector extracts of hi/lo half into their users
2) Recognizing an insertion of even elements followed by the odd elements as an unpack.
Testcase to come, but this shrinks the # of shuffle instructions generated on x86 from ~40 to the minimal 8.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110734 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-10 21:38:12 +00:00
Nick Lewycky
3221834f8a
Fix a use after free error caught by the valgrind builders.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110601 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-09 21:03:28 +00:00
Eli Friedman
4fffb345ed
PR7853: fix a silly mistake introduced in r101899, and add a test to make sure
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it doesn't regress again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110597 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-09 20:49:43 +00:00
Nick Lewycky
be04fdeb6c
Do more to modernize MergeFunctions. Refactor in response to Chris' code review.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110538 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-08 05:04:23 +00:00
Owen Anderson
5015b3417f
Don't attempt the PRE inline asm calls, since we don't value number them yet. Fixes PR7835.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110489 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-07 00:20:35 +00:00
Dan Gohman
60493c3f4f
Eliminate PromoteMemoryToRegisterID; just use addPreserved("mem2reg")
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instead, as an example of what this looks like.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110478 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06 21:48:06 +00:00
Owen Anderson
90c579de5a
Reapply r110396, with fixes to appease the Linux buildbot gods.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06 18:33:48 +00:00
Nick Lewycky
e52e9d6045
Fix uninitialized variable warning.
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Also move 'default' case next to a real case to help compiler optimize in
non-Debug builds.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110435 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06 07:43:46 +00:00
Nick Lewycky
c9dcbed6a3
Work in progress, cleaning up MergeFuncs.
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Further clean up the comparison function by removing overly generalized
"domains".
Remove all understanding of ELF aliases and simplify folding code and comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110434 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06 07:21:30 +00:00
Owen Anderson
1f74590e9d
Revert r110396 to fix buildbots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-06 00:23:35 +00:00
Owen Anderson
9ccaf53ada
Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
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ID member as the sole unique type identifier. Clean up APIs related to this change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05 23:42:04 +00:00
Owen Anderson
f35b08db50
Give JumpThreading+LVI a long-form cl::opt so that it's easier to toggle the default.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110384 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05 22:11:31 +00:00
Owen Anderson
b57e6558c7
Experiments show that we can safely increase our unrolling threshold without unduly impacting code size, particularly
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since unrolling is not enabled at -Os.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110233 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 18:32:46 +00:00
Dan Gohman
4eaee28e34
Fix whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110223 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 17:43:57 +00:00
Dan Gohman
2511bd06de
Fix a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110181 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 01:16:35 +00:00
Dan Gohman
79fca6fea8
Thread const correctness through a bunch of AliasAnalysis interfaces and
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eliminate several const_casts.
Make CallSite implicitly convertible to ImmutableCallSite.
Rename the getModRefBehavior for intrinsic IDs to
getIntrinsicModRefBehavior to avoid overload ambiguity with CallSite,
which happens to be implicitly convertible to bool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03 21:48:53 +00:00
Dan Gohman
0fd353376b
Make instcombine set explicit alignments on load or store
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instructions with alignment 0, so that subsequent passes don't
need to bother checking the TargetData ABI size manually.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110128 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03 18:20:32 +00:00
Peter Collingbourne
3bababf880
Add an atomic lowering pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110113 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03 16:19:16 +00:00
Dan Gohman
795e70e431
Use unary + instead of a separate local variable for working
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around std::min vs static const friction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110112 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03 16:15:50 +00:00
Owen Anderson
61378363b7
Re-apply the infamous r108614, with a fix pointed out by Dirk Steinke.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110036 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02 09:32:13 +00:00
Oscar Fuentes
ee56c42168
Prefix next' iterator operation with
llvm::'.
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Fixes potential ambiguity problems on VS 2010.
Patch by nobled!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110029 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02 06:00:15 +00:00
Daniel Dunbar
44c7486c63
Fix a -Wreorder warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110022 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02 05:43:46 +00:00
Nick Lewycky
78d4330fd8
Work in progress.
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Start cleaning up MergeFunctions to look more like the rest of LLVM. The
primary change here is to move the methods responsible for comparison into the
new FunctionComparator object. Some comments added. There's more to do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110021 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02 05:23:03 +00:00
Daniel Dunbar
10b173a1e7
Speculatively revert r108614, "Another attempt at getting the clang self-host to
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like my instcombine patch.", in an attempt to fix Clang i386 bootstrap.
- Also PR7719.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109953 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-31 19:51:11 +00:00
Rafael Espindola
d720670393
The BlockExtractorPass() constructor was not reading the BlockFile and that was
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exactly what bugpoint expected it to do.
There was also only one user of
BlockExtractorPass(const std::vector<BasicBlock*> &B), so just remove it and
make BlockExtractorPass read BlockFile.
This fixes bugpoint's block extraction.
Nick, please review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109936 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-31 00:32:17 +00:00
Dan Gohman
e16829b401
Move MaximumAlignment to be a member of the Value class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109891 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30 21:07:05 +00:00
Nick Lewycky
39a383124b
Add missing newline to debug statement.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109886 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30 20:27:01 +00:00
Eli Friedman
618898e933
PR7750: !CExpr->isNullValue() only properly computes whether CExpr is nonnull
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if CExpr is a ConstantInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109773 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29 18:03:33 +00:00
Gabor Greif
7d3056b160
simplify by using CallSite constructors; virtually eliminates CallSite::get from the tree
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28 22:50:26 +00:00
Dan Gohman
138aa2a82b
Define a maximum supported alignment value for load, store, and
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alloca instructions (constrained by their internal encoding),
and add error checking for it. Fix an instcombine bug which
generated huge alignment values (null is infinitely aligned).
This fixes undefined behavior noticed by John Regehr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109643 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28 20:12:04 +00:00
Dan Gohman
33591af872
When user code intentionally dereferences null, the alignment of the
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dereference is theoretically infinite. Put a cap on the computed
alignment to avoid overflow, noticed by John Regehr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109596 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28 17:14:23 +00:00
Gabor Greif
f5e13095fa
simplify
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109589 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28 15:52:43 +00:00
Gabor Greif
d09475c226
use Value* constructor of CallSite to create potentially improper site, and test that
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109581 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28 14:28:18 +00:00
Gabor Greif
a292b2f49f
recommit simplification (r109502, backed out r109509); seems to innocent
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109510 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27 16:44:23 +00:00
Gabor Greif
5b0c25313e
back out this too to restore the bots
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27 15:56:07 +00:00
Gabor Greif
86099345db
simplify: CallSite::get --> CallSite constructor
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109506 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27 15:02:37 +00:00
Gabor Greif
50da18171e
simplify
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109502 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27 13:31:22 +00:00
Owen Anderson
cfa7fb6df5
Add an initial implementation of LazyValueInfo updating for JumpThreading. Disabled for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109424 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26 18:48:03 +00:00
Dan Gohman
052f000158
Remove LCSSA's bogus dependence on LoopSimplify and LoopSimplify's bogus
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dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier
pass in StandardPasses.h to ensure that it gets scheduled at the right
time.
Declare that loop unrolling preserves ScalarEvolution, and shuffle some
getAnalysisUsages.
This eliminates one LoopSimplify and one LCCSA run in the standard
compile opts sequence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109413 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26 18:11:16 +00:00
Dan Gohman
572365ec88
Preserve ScalarEvolution in the loop unroller.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109412 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26 18:02:06 +00:00
Dan Gohman
b7aa26bbdb
Use DominatorTree::properlyDominates instead of dominates with an
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explicit inequality check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26 17:37:36 +00:00
Dan Gohman
cb6816dc81
A block dominates itself, by definition.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109400 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26 17:35:32 +00:00
Nick Lewycky
de4e94a18c
Revert this because we can't clone cyclic MDNodes which are creating during a
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build of llvm-gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109355 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24 20:54:02 +00:00
Nick Lewycky
fee12b2985
Whether function-local or not, a MDNode may reference a Function in which case
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it needs to be mapped to refer to the function in the new module, not the old
one. Fixes PR7700.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109353 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24 19:43:25 +00:00
Devang Patel
169c932759
Speculatively revert 109117
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109132 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 18:44:00 +00:00
Gabor Greif
481c4c0734
keep in 80 cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109122 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 17:18:03 +00:00
Devang Patel
bd68d42843
Map MDNode correctly.
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A non function local MDNode can have an operand which is cloned by MapValue().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109117 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 16:35:00 +00:00
Gabor Greif
96f1d8ebdd
mass elimination of reliance on automatic iterator dereferencing
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109103 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 13:36:47 +00:00
Gabor Greif
945f1ab0a5
simplify
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109101 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 13:07:39 +00:00
Gabor Greif
efdf039aec
do not access arguments via low-level interface, do not multiply dereference use_iterators
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109100 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 13:04:32 +00:00
Gabor Greif
85e01df73d
pass dereferenced iterator to dyn_cast
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109099 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 11:48:35 +00:00
Gabor Greif
20361b9d4d
pass dereferenced iterator to dyn_cast
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109098 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 11:43:44 +00:00
Gabor Greif
a399781289
undo 80 column trespassing I caused
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 10:37:47 +00:00
Dan Gohman
17aa92c92a
Make NamedMDNode not be a subclass of Value, and simplify the interface
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for creating and populating NamedMDNodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 23:38:33 +00:00
Owen Anderson
d13db2c59c
Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 22:09:45 +00:00
Dan Gohman
549979f550
Make this code a little more readable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108968 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 23:49:44 +00:00
Dan Gohman
333a94765a
Use DebugLocs instead of MDNodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108967 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 23:49:05 +00:00
Dan Gohman
e336cbc450
Fix a typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 23:10:36 +00:00
Dan Gohman
7bc230ec6a
Don't look up the "dbg" metadata kind by name.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108961 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 23:09:34 +00:00
Dan Gohman
bda0252639
Use getDebugLoc and setDebugLoc instead of getDbgMetadata and setDbgMetadata,
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avoiding MDNode overhead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108909 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 20:09:07 +00:00
Dan Gohman
43ef3fbae1
Remember that the induction variable is always a PHINode and
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use getIncomingValueForBlock instead of
LoopInfo::getCanonicalInductionVariableIncrement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108865 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 17:18:52 +00:00
Owen Anderson
5f23a938b0
Tweak per Chris' comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108736 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19 19:23:32 +00:00
Owen Anderson
d90290127b
Reimplement r108639 in InstCombine rather than DAGCombine.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19 08:09:34 +00:00
Owen Anderson
7e3012c345
Another attempt at getting the clang self-host to like my instcombine patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108614 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-17 06:56:35 +00:00
Chris Lattner
49669e6d3a
eliminate unlockedRefineAbstractTypeTo, types are all per-llvmcontext,
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so there is no locking involved in type refinement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108553 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 20:50:13 +00:00
Dan Gohman
1e381fcd55
Reorder the contents of various getAnalysisUsage functions, eliminating
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a redundant loopsimplify run from the default -O2 sequence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 17:58:45 +00:00
Owen Anderson
835d425a16
Remove the rest of my instcombine changes. Back to the drawing board on this one.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108530 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 16:39:00 +00:00
Gabor Greif
a6aac4c5bc
eliminate CallInst::ArgOffset
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108522 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 09:38:02 +00:00
Nick Lewycky
394ce41b7f
Arrays and vectors with different numbers of elements are not equivalent.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108517 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 06:31:12 +00:00
Eric Christopher
de309a8b52
Also revert 108422, it's causing some test failures.
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Working on testcases for Owen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108494 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 01:36:12 +00:00
Dan Gohman
a9db129730
Don't merge uses when they are targetting fixup sites with
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different widths. In a use with a narrower fixup, formulae
may be wider than the fixup, in which case the high bits
aren't necessarily meaningful, so it isn't safe to reuse
them for uses with wider fixups.
This fixes PR7618, though the testcase is too large for a
reasonable regression test, since it heavily dependes on
hitting LSR's heuristics in a certain way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108455 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 20:24:58 +00:00
Dan Gohman
ef4308d6ba
Use dbgs() instead of errs() in a DEBUG.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108453 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 20:12:42 +00:00
Owen Anderson
11acba0470
Speculatively revert r108429 to fix the clang self-host.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108436 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 18:18:57 +00:00
Owen Anderson
40bf5e7a68
Per Chris' suggestion, get rid of the select canonicalization and just add
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the corresponding or-icmp-and pattern. This has the added benefit of doing
the matching earlier, and thus being less susceptible to being confused by
earlier transforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108429 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 17:24:23 +00:00
Owen Anderson
2722dfa75d
Remove unneeded check, and correct style.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108427 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 16:38:22 +00:00
Dan Gohman
c88c1a4581
Watch out for a constant offset cancelling out a base register, forming
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a zero. This situation arrises in Fortran code with induction variables
that start at 1 instead of 0. This fixes PR7651.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108424 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 15:14:45 +00:00
Owen Anderson
96fe621e07
Reapply r108378, with bugfixes, testcase, and improved comment formatting.
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This now passes LIT, nighty test, and llvm-gcc bootstrap on my machine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108422 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 15:00:23 +00:00
Nick Lewycky
706f50820c
This is a full sentence.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108418 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 06:51:22 +00:00
Nick Lewycky
664040a03c
Disable aliases on all platforms.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108417 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 06:48:56 +00:00
Chris Lattner
35a939b97d
make various clients of ReplaceAndSimplifyAllUses tolerate
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it *changing* the things it replaces, not just causing them
to drop to null. There is no functionality change yet, but
this is required for a subsequent patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108414 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 06:06:04 +00:00
Eli Friedman
5e84e8e52a
Speculatively revert r108378; may be causing bootstrap failures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108389 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 00:33:00 +00:00
Owen Anderson
bd129a7460
Add instcombine transforms to optimize tests of multiple bits of the same value into a single larger comparison.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14 23:33:51 +00:00
Owen Anderson
e84178a0bd
Extend SimplifyCFG's common-destination folding heuristic to allow a single
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"bonus" instruction to be speculatively executed. Add a heuristic to
ensure we're not tripping up out-of-order execution by checking that this bonus
instruction only uses values that were already guaranteed to be available.
This allows us to eliminate the short circuit in (x&1)&&(x&2).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108351 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14 19:52:16 +00:00
Chris Lattner
07c9b64719
revert r108320, I see the failures now...
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108322 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14 06:16:35 +00:00
Chris Lattner
7e185af930
reapply benjamin's instcombine patch, I don't see anything wrong with it and can't repro any problems with a manual self-host.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108320 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14 05:59:13 +00:00
Eric Christopher
f0193ed8de
Grammar.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108252 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-13 18:27:13 +00:00
Duncan Sands
d0d3ccc827
Handle the case of a tail recursion in which the tail call is followed
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by a return that returns a constant, while elsewhere in the function
another return instruction returns a different constant. This is a
special case of accumulator recursion, so just generalize the existing
logic a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108241 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-13 15:41:41 +00:00
Benjamin Kramer
c9fe6374b7
Nope, still breaks the release selfhost bots :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108153 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 16:38:48 +00:00
Benjamin Kramer
8fd437c43f
Reapply the "or" half of r108136, which seems to be less problematic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108152 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 16:15:48 +00:00
Gabor Greif
a9b8338bfa
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108150 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 15:48:26 +00:00
Benjamin Kramer
e2d07b5208
Revert r108141 again, sigh.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108148 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 14:42:04 +00:00
Gabor Greif
40119ceeec
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108147 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 14:15:58 +00:00
Gabor Greif
a53029b1fc
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108146 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 14:15:10 +00:00
Gabor Greif
65b9212d34
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 14:14:03 +00:00
Gabor Greif
aaaaa02a93
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108144 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 14:13:15 +00:00
Gabor Greif
b7df500063
cache results of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108143 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 14:12:11 +00:00
Gabor Greif
ee1f44fba3
cache results of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108142 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 14:10:24 +00:00
Benjamin Kramer
98a8206e58
Reapply 108136 with an ugly pasto fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108141 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 13:44:00 +00:00
Benjamin Kramer
ad854f0764
Move optimization to avoid redundant matching.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108140 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 13:34:22 +00:00
Benjamin Kramer
0cc4ed1ca5
Revert r108136 until I figure out why it broke selfhost.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108139 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 12:35:49 +00:00
Gabor Greif
110b75aa75
cache dereferenced iterators
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108138 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 12:03:02 +00:00
Gabor Greif
639e9e47a2
recommit r108131 (hich has been backed out in r108135) with a fix
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108137 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 12:02:10 +00:00
Benjamin Kramer
4fc719e607
instcombine: fold (x & y) | (~x & z) and (x & y) ^ (~x & z) into ((y ^ z) & x) ^ z which is one instruction shorter. (PR6773)
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before:
%and = and i32 %y, %x
%neg = xor i32 %x, -1
%and4 = and i32 %z, %neg
%xor = xor i32 %and4, %and
after:
%xor1 = xor i32 %z, %y
%and2 = and i32 %xor1, %x
%xor = xor i32 %and2, %z
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108136 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 11:54:45 +00:00
Gabor Greif
e99e077522
back out r108131 (of TailDuplication.cpp) for now, it causes a buildbot failure
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108135 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 11:32:39 +00:00
Gabor Greif
fc41f90817
cache dereferenced iterators
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108134 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 11:19:24 +00:00
Gabor Greif
625398343e
cache dereferenced iterators
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108133 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 10:59:23 +00:00
Gabor Greif
f1b2874c68
cache dereferenced iterators
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108132 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 10:49:54 +00:00
Gabor Greif
a8b9df7bd9
cache dereferenced iterators
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108131 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 10:36:48 +00:00
Duncan Sands
3472766f9e
Convert some tab stops into spaces.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108130 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 08:16:59 +00:00
Chris Lattner
5a30a8574c
make the prototypes for CreateMalloc and CreateFree more consistent. Patch
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by Hans Vandierendonck from PR7605
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108116 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 00:57:28 +00:00
Chris Lattner
0a96144aac
if jump threading is able to infer interesting values on both
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the LHS and RHS of an and/or instruction, don't multiply add
known predecessor values. This fixes the crash on testcase
from PR7498
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108114 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12 00:47:34 +00:00
Duncan Sands
24080a9878
The accumulator tail recursion transform claims to work for any associative
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operation, but the way it's implemented requires the operation to also be
commutative. So add a check for commutativity (and tweak the corresponding
comments). This makes no difference in practice since every associative
LLVM instruction is also commutative! Here's an example to show the need
for commutativity: the accum_recursion.ll testcase calculates the factorial
function. Before the transformation the result of a call is
((((1*1)*2)*3)...)*x
while afterwards it is
(((1*x)*(x-1))...*2)*1
which clearly requires both associativity and commutativity of * to be equal
to the original.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108056 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-10 20:31:42 +00:00
Gabor Greif
e664267ae7
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 16:51:20 +00:00
Gabor Greif
9085fcab82
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107984 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 16:31:08 +00:00
Gabor Greif
bf2eefdb0d
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107983 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 16:26:41 +00:00
Gabor Greif
e80ba4f884
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107981 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 16:17:52 +00:00
Gabor Greif
7656018c22
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107976 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 15:40:10 +00:00
Gabor Greif
7556cf541b
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107975 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 15:25:42 +00:00
Gabor Greif
5896935423
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 15:25:09 +00:00
Gabor Greif
fc36c0f21f
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107972 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 15:01:36 +00:00
Gabor Greif
1d3ae029c4
cache result of operator* (found by inspection)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107971 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 14:48:08 +00:00
Gabor Greif
0814985887
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107969 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 14:36:49 +00:00
Gabor Greif
a29742df5f
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107968 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 14:29:14 +00:00
Gabor Greif
5417a03b55
cache result of operator*
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107966 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 14:18:23 +00:00
Gabor Greif
9672414017
cache operator*'s result (in multiple functions)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107965 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 14:02:13 +00:00
Gabor Greif
b654435712
do not repeatedly dereference use_iterator
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-09 12:23:50 +00:00
Benjamin Kramer
1db071f0da
Teach instcombine to transform
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(X >s -1) ? C1 : C2 and (X <s 0) ? C2 : C1
into ((X >>s 31) & (C2 - C1)) + C1, avoiding the conditional.
This optimization could be extended to take non-const C1 and C2 but we better
stay conservative to avoid code size bloat for now.
for
int sel(int n) {
return n >= 0 ? 60 : 100;
}
we now generate
sarl $31, %edi
andl $40, %edi
leal 60(%rdi), %eax
instead of
testl %edi, %edi
movl $60, %ecx
movl $100, %eax
cmovnsl %ecx, %eax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 11:39:10 +00:00
Chris Lattner
0238f8c430
Fix the second half of PR7437: scalarrepl wasn't preserving
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address spaces when SRoA'ing memcpy's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107846 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 00:27:05 +00:00
Duncan Sands
8246adc1f0
Rename "Release" builds as "Release+Asserts"; rename "Release-Asserts"
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builds to "Release". The default build is unchanged (optimization on,
assertions on), however it is now called Release+Asserts. The intent
is that future LLVM releases released via llvm.org will be Release builds
in the new sense, i.e. will have assertions disabled (currently they have
assertions enabled, for a more than 20% slowdown). This will bring them
in line with MacOS releases, which ship with assertions disabled. It also
means that "Release" now means the same things in make and cmake builds:
cmake already disables assertions for "Release" builds AFAICS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107758 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 07:48:00 +00:00
Nick Lewycky
10d2f4d01b
Detabify this file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107637 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06 03:53:43 +00:00
Devang Patel
1192d4d0a5
MDString is already checked earlier.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107516 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-02 21:13:23 +00:00
Dan Gohman
8c1ffae068
Don't claim to preserve AliasAnalysis. First, this is doesn't actually
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have any effect, and second, deleting stores can potentially invalidate
an AliasAnalysis, and there's currently no notification for this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-02 18:43:05 +00:00
Bill Wendling
5e721d7682
Implement the "linker_private_weak" linkage type. This will be used for
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Objective-C metadata types which should be marked as "weak", but which the
linker will remove upon final linkage. However, this linkage isn't specific to
Objective-C.
For example, the "objc_msgSend_fixup_alloc" symbol is defined like this:
.globl l_objc_msgSend_fixup_alloc
.weak_definition l_objc_msgSend_fixup_alloc
.section __DATA, __objc_msgrefs, coalesced
.align 3
l_objc_msgSend_fixup_alloc:
.quad _objc_msgSend_fixup
.quad L_OBJC_METH_VAR_NAME_1
This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".
Currently only supported on Darwin platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107433 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01 21:55:59 +00:00
Devang Patel
26d14294de
Debugging infomration is encoded in llvm IR using metadata. This is designed
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such a way that debug info for symbols preserved even if symbols are
optimized away by the optimizer.
Add new special pass to remove debug info for such symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107416 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01 19:49:20 +00:00
Devang Patel
e62b203570
If a named mdnode is removed then mark module as changed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107412 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01 18:27:46 +00:00
Jim Grosbach
7fa1bbad29
lowerinvoke needs to handle aggregate function args like sjlj eh does.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107335 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30 22:22:59 +00:00
Devang Patel
444a08cd6f
Remove all debug info related named mdnodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107323 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30 21:29:00 +00:00
Gabor Greif
8e1ebff9f1
use ArgOperand API
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107278 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30 12:42:43 +00:00