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Commit Graph

3846 Commits

Author SHA1 Message Date
Evan Cheng
d80c2821af If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def.
llvm-svn: 38496
2007-07-10 17:52:20 +00:00
Evan Cheng
87e735c4be Somehow this wasn't committed last time. M_CLOBBERS_PRED is gone.
llvm-svn: 38495
2007-07-10 17:50:43 +00:00
Dan Gohman
bd0ff28e1c Fix a bug in the folding of binary operators to undef.
Thanks to Lauro for spotting this!

llvm-svn: 38491
2007-07-10 15:19:29 +00:00
Dan Gohman
6b21e11f1c Fix the folding of undef in several binary operators to recognize
undef in either the left or right operand.

llvm-svn: 38489
2007-07-10 14:20:37 +00:00
Evan Cheng
cf3b1c89a9 When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value.
llvm-svn: 38485
2007-07-10 07:08:32 +00:00
Evan Cheng
23dc96f640 Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h
llvm-svn: 38484
2007-07-10 06:59:55 +00:00
Dan Gohman
150487b166 Preserve volatililty and alignment information when lowering or
simplifying loads and stores.

llvm-svn: 38473
2007-07-09 22:18:38 +00:00
Dan Gohman
81cfdc2f19 Change getCopyToParts and getCopyFromParts to always use target-endian
register ordering, for both physical and virtual registers. Update the PPC
target lowering for calls to expect registers for the call result to
already be in target order.

llvm-svn: 38471
2007-07-09 20:59:04 +00:00
Dan Gohman
be352027e6 Initialize the IndexedModeActions array with memset before
updating it with calls to setIndexedLoadAction/setIndexedStoreAction,
which only update a few bits at a time. This avoids ostensible
undefined behavior of operationg on values which may be
trap-representations, and as a practical matter fixes errors from
valgrind, which doesn't track uninitialized memory with bit
granularity.

llvm-svn: 38468
2007-07-09 20:49:44 +00:00
Chris Lattner
aff9a84b7a Fix this warning:
DAGCombiner.cpp: In member function 'llvm::SDOperand<unnamed>::DAGCombiner::visitOR(llvm::SDNode*)':
DAGCombiner.cpp:1608: warning: passing negative value '-0x00000000000000001' for argument 1 to 'llvm::SDOperand llvm::SelectionDAG::getConstant(uint64_t, llvm::MVT::ValueType, bool)'

oiy.

llvm-svn: 38458
2007-07-09 16:16:34 +00:00
Gabor Greif
89919e17b4 fix typos
llvm-svn: 38453
2007-07-09 12:00:59 +00:00
Evan Cheng
4c7b04f24d Teach if-conversion about instructions that were already predicated, e.g. conditional move.
llvm-svn: 37964
2007-07-06 23:24:39 +00:00
Duncan Sands
f926a3080c The exception handling intrinsics return values,
so must be lowered to a value, not nothing at all.
Subtle point: I made eh_selector return 0 and
eh_typeid_for return 1.  This means that only
cleanups (destructors) will be run as the exception
unwinds [if eh_typeid_for returned 0 then it would
be as if the first catch always matched, and the
corresponding handler would be run], which is
probably want you want in the CBE.

llvm-svn: 37947
2007-07-06 14:46:23 +00:00
Duncan Sands
404336eb55 Indexes into the list of filter ids cannot be output
directly: they need to be turned into byte offsets
(often the same, but may not be if there are many
type infos).

llvm-svn: 37942
2007-07-06 12:46:24 +00:00
Rafael Espindola
7b3de98989 Add the byval attribute
llvm-svn: 37940
2007-07-06 10:57:03 +00:00
Duncan Sands
7e50c11edd Remove propagateEHRegister in favour of a more limited
fix, that is adequate while PR1508 remains unresolved.

llvm-svn: 37938
2007-07-06 09:18:59 +00:00
Duncan Sands
e7650d2b1e Remove ExtractGlobalVariable - use StripPointerCasts
instead.

llvm-svn: 37937
2007-07-06 09:10:03 +00:00
Evan Cheng
bae19254f0 Workaround of getCopyToRegs and getCopyFromRegs bugs for big-endian machines.
llvm-svn: 37935
2007-07-06 01:47:35 +00:00
Evan Cheng
22957164aa Change CalculateHeights and CalculateDepths to be non-recursive.
llvm-svn: 37934
2007-07-06 01:37:28 +00:00
Dan Gohman
cd6f6a0a58 Make the debug string for ISD::MERGE_VALUES consistent with the others.
llvm-svn: 37922
2007-07-05 20:15:43 +00:00
Dan Gohman
90c6b87b31 Add a parameter to getCopyToParts and getCopyFromParts to specify whether
endian swapping should be done, and update the code to use it. This fixes
some register ordering issues on big-endian systems, such as PowerPC,
introduced by the recent illegal by-val arguments changes.

llvm-svn: 37921
2007-07-05 20:12:34 +00:00
Gabor Greif
5f705671e4 Here is the bulk of the sanitizing.
Almost all occurrences of "bytecode" in the sources have been eliminated.

llvm-svn: 37913
2007-07-05 17:07:56 +00:00
Duncan Sands
eca2fa295b Make sure only one copy of a filter is placed in the
exception handling table if we encounter it multiple
times.  Filters could be folded harder than this, but
that would mean a lot more work for not much gain.

llvm-svn: 37908
2007-07-05 15:15:01 +00:00
Evan Cheng
0c037f4ee0 Better assertion messages.
llvm-svn: 37890
2007-07-05 07:05:38 +00:00
Duncan Sands
4441eff1ac Extend eh.selector to support both catches and filters.
Drop the eh.filter intrinsic.

llvm-svn: 37875
2007-07-04 20:52:51 +00:00
Dan Gohman
d2d18267e6 Fix several over-aggressive folds for undef nodes in dagcombine, to
follow the rules for undef used in instcombine.

llvm-svn: 37851
2007-07-03 14:03:57 +00:00
Dale Johannesen
7af19491d3 Fix for PR 1505 (and 1489). Rewrite X87 register
model to include f32 variants.  Some factoring
improvments forthcoming.

llvm-svn: 37847
2007-07-03 00:53:03 +00:00
Dan Gohman
68f0cbccfb Replace ExpandScalarFormalArgs and ExpandScalarCallArgs with the newly
refactored getCopyFromParts and getCopyToParts, which are more general.
This effectively adds support for lowering illegal by-val vector call
arguments.

llvm-svn: 37843
2007-07-02 16:18:06 +00:00
Dan Gohman
5fe8266d04 Teach GetNegatedExpression to negate 0-B to B in UnsafeFPMath mode, and
visitFSUB to fold 0-B to -B in UnsafeFPMath mode. Also change visitFNEG
to use isNegatibleForFree/GetNegatedExpression instead of doing a subset
of the same thing manually.

This fixes test/CodeGen/X86/negative-sin.ll.

llvm-svn: 37842
2007-07-02 15:48:56 +00:00
Evan Cheng
a1a06d1763 Only do FNEG xform when the vector type is a floating point type.
llvm-svn: 37818
2007-06-29 21:44:35 +00:00
David Greene
75e58e2207 Remove unused variables.
llvm-svn: 37816
2007-06-29 21:42:03 +00:00
Evan Cheng
a6add260b3 Fix a vector FP constant CSE bug.
llvm-svn: 37814
2007-06-29 21:36:04 +00:00
David Greene
0942edd414 Remove unnecessary attributions in comments.
llvm-svn: 37799
2007-06-29 03:42:23 +00:00
David Greene
df6a87ea1c Fix reference to cached end iterator invalidated by an erase operation.
Uncovered by _GLIBCXX_DEBUG.

llvm-svn: 37795
2007-06-29 02:49:11 +00:00
David Greene
244fb44f6b Remove the "special tie breaker" because it resulted in inconsistent
ordering and thus violated the strict weak ordering requirement of
priority_queue.  Uncovered by _GLIBCXX_DEBUG.

llvm-svn: 37794
2007-06-29 02:48:09 +00:00
David Greene
ad230f223f Fix misue of iterator pointing to erased object. Uncovered by
_GLIBCXX_DEBUG.

llvm-svn: 37793
2007-06-29 02:45:24 +00:00
Dan Gohman
ad9cbaba40 Fix an assertion failure in legalizing bitcast operators on targets where
vectors are split down to single elements as part of legalization.

llvm-svn: 37785
2007-06-29 00:09:08 +00:00
Dan Gohman
c6bdcfa8c0 Add new TargetLowering code to provide the final register type that an
illegal value type will be transformed to, for code that needs the
register type after all transformations instead of just after the first
transformation.

Factor out the code that uses this information to do copy-from-regs and
copy-to-regs for various purposes into separate functions so that they
are done consistently.

llvm-svn: 37781
2007-06-28 23:29:44 +00:00
Evan Cheng
e67385d712 If a livein is not used in the block. It's live through.
llvm-svn: 37764
2007-06-27 18:47:28 +00:00
Evan Cheng
26542e347a Partial fix for PR1502: If a EH register is needed in a successor of landing pad, add it as livein to all the blocks in the paths between the landing pad and the specified block.
llvm-svn: 37763
2007-06-27 18:45:32 +00:00
Dan Gohman
cb89e19a6d Rename ("shrinkify") MVT::isExtendedValueType to MVT::isExtendedVT.
llvm-svn: 37758
2007-06-27 16:08:04 +00:00
Dan Gohman
c1c4b0972f Use getVectorTypeBreakdown in FunctionLoweringInfo::CreateRegForValue
to compute the number and type of registers needed for vector values
instead of computing it manually. This fixes PR1529.

llvm-svn: 37755
2007-06-27 14:34:07 +00:00
Dan Gohman
69a6154359 Make the comment for ScalarizeVectorOp mention that it is only for use
with single-element vectors.

llvm-svn: 37752
2007-06-27 14:06:22 +00:00
Duraid Madina
d32d8b9726 ok, this is something of a dirty hack, but it seems to work. (fixes e.g.
the SPASS miscompilation)

llvm-svn: 37750
2007-06-27 09:01:14 +00:00
Duraid Madina
73b0d188c8 ok, this much doesn't seem to bork anything
llvm-svn: 37749
2007-06-27 08:31:07 +00:00
Duraid Madina
94cd67290b revert evan's fixes (and my doofusness) since they had a huge code
quality hit. will look at this soon.

llvm-svn: 37748
2007-06-27 08:11:59 +00:00
Duraid Madina
c0d3c96333 pull evan's fixes - should help the nightly tester (but there are still
some issues)

llvm-svn: 37747
2007-06-27 07:07:13 +00:00
Evan Cheng
480cd89fa1 Replace std::set with SmallPtrSet.
llvm-svn: 37746
2007-06-27 05:23:00 +00:00
Evan Cheng
f74e333161 Fix an obvious bug. Old code only worked for the entry block.
llvm-svn: 37743
2007-06-27 01:16:36 +00:00
Evan Cheng
5c0f03bce4 Correctly handle implcit def / use operands.
llvm-svn: 37740
2007-06-26 21:05:13 +00:00