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3357 Commits

Author SHA1 Message Date
Devang Patel dd719f701d Let FE use derived types for DW_TAG_friend. 
Patch by Alexander Herz!

llvm-svn: 111861
 2010-08-23 23:16:25 +00:00
Devang Patel a8652674e0 Handle qualified constants that are directly folded by FE. 
PR 7920.

llvm-svn: 111820
 2010-08-23 18:25:56 +00:00
Owen Anderson d31d82d75c Now that PassInfo and Pass::ID have been separated, move the rest of the passes over to the new registration API. 
llvm-svn: 111815
 2010-08-23 17:52:01 +00:00
Dan Gohman 5fc55dc3cf CreateTemporaryType doesn't needs its Context argument. 
llvm-svn: 111687
 2010-08-20 22:39:47 +00:00
Dan Gohman 16a5d98c3a Introduce a new temporary MDNode concept. Temporary MDNodes are 
not part of the IR, are not uniqued, and may be safely RAUW'd.
This replaces a variety of alternate mechanisms for achieving
the same effect.

llvm-svn: 111681
 2010-08-20 22:02:26 +00:00
Dan Gohman a931605647 Convert DbgInfoPrinter to use errs() instead of outs(). 
llvm-svn: 111659
 2010-08-20 18:03:05 +00:00
Dan Gohman f71c521fb7 Revert r111199; it breaks -debug-pass=Structure output. 
llvm-svn: 111500
 2010-08-19 01:29:07 +00:00
Chris Lattner 3decde9305 refix PR1143 by making basicaa analyze zexts of indices aggresively, 
which I broke with a recent patch.

llvm-svn: 111452
 2010-08-18 23:09:49 +00:00
Chris Lattner 26403acef7 GetLinearExpression is only called when TD is non-null, pass as 
a reference instead of pointer.

llvm-svn: 111445
 2010-08-18 22:52:09 +00:00
Chris Lattner 1b9c38796e rework GEP decomposition to make a new VariableGEPIndex struct instead of 
using a pair.  This tidies up the code a bit.  While setting things up, add
a (currently unused) field to keep track of how the value is extended.

llvm-svn: 111444
 2010-08-18 22:47:56 +00:00
Chris Lattner 9f7500f57b move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.

Now with less tree breakingness.

llvm-svn: 111433
 2010-08-18 22:07:29 +00:00
Owen Anderson 80d19f0905 Use ConstantRange to propagate information through value definitions. 
llvm-svn: 111425
 2010-08-18 21:11:37 +00:00
Daniel Dunbar fbeeb130d8 Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. The 
form of", it doesn't pass tests.

llvm-svn: 111385
 2010-08-18 18:43:08 +00:00
Owen Anderson 208636fa33 Inform LazyValueInfo whenever a block is deleted, to avoid dangling pointer issues. 
llvm-svn: 111382
 2010-08-18 18:39:01 +00:00
Chris Lattner 54fe883203 move gep decomposition out of ValueTracking into BasicAA. The form of 
decomposition that it is doing is very basicaa specific and is only used
by basicaa.

llvm-svn: 111375
 2010-08-18 18:22:17 +00:00
Chris Lattner a33edcb56c fix PR7589: In brief: 
gep P, (zext x) != gep P, (sext x)

DecomposeGEPExpression was getting this wrong, confusing
basicaa.

llvm-svn: 111352
 2010-08-18 04:28:19 +00:00
Dan Gohman ed2b005842 Tweak IVUsers' concept of "interesting" to exclude add recurrences 
where the step value is an induction variable from an outer loop, to
avoid trouble trying to re-expand such expressions. This effectively
hides such expressions from indvars and lsr, which prevents them
from getting into trouble.

llvm-svn: 111317
 2010-08-17 22:50:37 +00:00
Owen Anderson fa7d44687f Fix another iterator invalidation that caused a *really* nasty miscompilation in 403.gcc. 
llvm-svn: 111210
 2010-08-16 23:42:33 +00:00
Dan Gohman 55cd6aadc9 Make dumpPassStructure be a PMDataManager abstraction, rather than 
a Pass abstraction, since that's the level it's actually used at.
Rename Pass' dumpPassStructure to dumpPass.

This eliminates an awkward use of getAsPass() to convert a PMDataManager*
into a Pass* just to permit a dumpPassStructure call.

llvm-svn: 111199
 2010-08-16 22:45:12 +00:00
Dan Gohman 797a1dbb1c To create a copy of a SmallVector with an element removed from the 
middle, copy the elements in two groups, rather than copying all the
elements and then doing an erase on the middle of the result. These
are SmallVectors, so we shouldn't expect to hit dynamic allocation
in the common case.

llvm-svn: 111151
 2010-08-16 16:57:24 +00:00
Dan Gohman 0d0cc18af5 Tidy whitespace. 
llvm-svn: 111147
 2010-08-16 16:34:09 +00:00
Dan Gohman c29eeaecec Add a comment. 
llvm-svn: 111145
 2010-08-16 16:31:39 +00:00
Dan Gohman 7eac4961d7 Use const_iterator in a few places. 
llvm-svn: 111144
 2010-08-16 16:30:01 +00:00
Dan Gohman 74c61503b1 Use iterators instead of indices in a few more places. 
llvm-svn: 111143
 2010-08-16 16:27:53 +00:00
Dan Gohman f29618236e Micro-optimize SCEVConstant comparison. 
llvm-svn: 111142
 2010-08-16 16:25:35 +00:00
Dan Gohman 3688ea5c7d Move SCEVNAryExpr's virtual member functions out of line, and convert 
them to iterators.

llvm-svn: 111140
 2010-08-16 16:21:27 +00:00
Dan Gohman d6925bbe0d Use iterators instead of indices in simple cases. 
llvm-svn: 111138
 2010-08-16 16:16:11 +00:00
Dan Gohman b6c773ec2e Avoid gratuitous inefficiency in ifndef NDEBUG code. 
llvm-svn: 111137
 2010-08-16 16:13:54 +00:00
Dan Gohman e5fb1036e6 Make one getAddExpr call when analyzing a+b+c+d+e+... instead of one 
for each add instruction. Ditto for Mul.

llvm-svn: 111136
 2010-08-16 16:03:49 +00:00
Dan Gohman b094b39111 Delete an unused function. 
llvm-svn: 111135
 2010-08-16 15:57:14 +00:00
Dan Gohman fb83b043eb Revert r111058, the lint check for indirectbr successors that aren't 
address-taken. This can occur normally, if the code which took the
address got DCEd.

llvm-svn: 111121
 2010-08-16 14:39:19 +00:00
Argyrios Kyrtzidis d0fcc9a818 Revert r111082. No warnings for this common pattern. 
llvm-svn: 111102
 2010-08-15 10:27:23 +00:00
Argyrios Kyrtzidis 7c09ddf0ae Add ATTRIBUTE_UNUSED to methods that are not supposed to be used. 
llvm-svn: 111082
 2010-08-14 21:35:10 +00:00
Dan Gohman 21e6dc6aa3 Add a lint check for an indirectbr destination which has not 
had its address taken.

llvm-svn: 111058
 2010-08-13 23:56:28 +00:00
Dan Gohman 0c436ab356 Various optimizations. Don't compare two loops' depths 
when they are the same loop. Don't compare two instructions'
loop depths when they are in the same block.

llvm-svn: 111045
 2010-08-13 21:24:58 +00:00
Dan Gohman 63c020a210 When testing whether one loop contains another, test this directly 
rather than testing whether the loop contains the other's header.

llvm-svn: 111039
 2010-08-13 20:23:25 +00:00
Dan Gohman 3324b9ec67 Add a const. 
llvm-svn: 111038
 2010-08-13 20:17:27 +00:00
Dan Gohman cf32f2bde1 When creating a symmetric SCEV with a constant operand, put 
the constant operand on the left, as that's where ScalarEvolution
will end up canonicalizing to.

llvm-svn: 111037
 2010-08-13 20:17:14 +00:00
Dan Gohman ec0120a123 An add recurrence is loop-invariant in any loop inside of its 
associated loop. This avoids potentially expensive traversals
of the add recurrence's operands.

llvm-svn: 111034
 2010-08-13 20:11:39 +00:00
Dan Gohman 2de47777f4 Optimize ScalarEvolution::getAddExpr's operand factoring code by 
having it finish processing all of the muliply operands before
starting the whole getAddExpr process over again, instead of
immediately after the first simplification.

llvm-svn: 110916
 2010-08-12 15:00:23 +00:00
Dan Gohman 157847f5d1 Hoist some loop-invariant code out of a hot loop. 
llvm-svn: 110915
 2010-08-12 14:52:55 +00:00
Dan Gohman e67b287451 Optimize ScalarEvolution::getAddExpr's duplicate operand detection 
by having it finish processing the whole operand list before
starting the whole getAddExpr process over again, instead of
immediately after the first duplicate is found.

llvm-svn: 110914
 2010-08-12 14:46:54 +00:00
Devang Patel 4d597e8268 Even if a variable has constant value all the time, it is still a variable in gdb's eyes. 
Tested by scope.exp in gdb testsuite.

llvm-svn: 110876
 2010-08-11 23:17:54 +00:00
Owen Anderson 7b974a45db Fix a subtle use-after-free issue. 
llvm-svn: 110863
 2010-08-11 22:36:04 +00:00
Dan Gohman a97e78b4ac Make LoopPass::getContainedPass return a LoopPass* instead of a Pass* 
and remove casts from all its callers.

llvm-svn: 110848
 2010-08-11 20:34:43 +00:00
Owen Anderson 0bd61240e9 Improve indentation. 
llvm-svn: 110778
 2010-08-11 04:24:25 +00:00
Dan Gohman f7495f286a When analyzing loop exit conditions combined with and and or, don't 
make any assumptions about when the two conditions will agree on when
to permit the loop to exit. This fixes PR7845.

llvm-svn: 110758
 2010-08-11 00:12:36 +00:00
Dan Gohman e18c2d6f99 Rename and reorder the arguments to isImpliedCond, for consistency and clarity. 
llvm-svn: 110750
 2010-08-10 23:46:30 +00:00
Owen Anderson 5f1dd0967d Now that we're using ConstantRange to represent potential values, make use of that represenation to 
create constraints from comparisons other than eq/neq.

llvm-svn: 110742
 2010-08-10 23:20:01 +00:00
Devang Patel 3e4d04230b Add missing argument. CreateCompositeTypeEx() users, please verify. 
llvm-svn: 110717
 2010-08-10 20:22:49 +00:00