Commit Graph

6951 Commits

Author SHA1 Message Date
Owen Anderson
5015b3417f Don't attempt the PRE inline asm calls, since we don't value number them yet. Fixes PR7835.
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")
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.
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.
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.
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.
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
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.
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
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.
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.
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
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
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
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
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.
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::'.
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.
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.
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
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
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.
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.
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
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
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
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
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
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
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
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
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
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
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.
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
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.
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
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.
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
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
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
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
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.
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
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
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
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
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
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
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
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