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2007-07-06Remove propagateEHRegister in favour of a more limitedDuncan Sands
fix, that is adequate while PR1508 remains unresolved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37938 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-06Remove ExtractGlobalVariable - use StripPointerCastsDuncan Sands
instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37937 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-06Workaround of getCopyToRegs and getCopyFromRegs bugs for big-endian machines.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37935 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-06Change CalculateHeights and CalculateDepths to be non-recursive.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37934 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-05Make the debug string for ISD::MERGE_VALUES consistent with the others.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37922 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-05Add a parameter to getCopyToParts and getCopyFromParts to specify whetherDan Gohman
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37921 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-05Here is the bulk of the sanitizing.Gabor Greif
Almost all occurrences of "bytecode" in the sources have been eliminated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37913 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-05Make sure only one copy of a filter is placed in theDuncan Sands
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37908 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-05Better assertion messages.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37890 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-04Extend eh.selector to support both catches and filters.Duncan Sands
Drop the eh.filter intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37875 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-03Fix several over-aggressive folds for undef nodes in dagcombine, toDan Gohman
follow the rules for undef used in instcombine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37851 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-03Fix for PR 1505 (and 1489). Rewrite X87 registerDale Johannesen
model to include f32 variants. Some factoring improvments forthcoming. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37847 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-02Replace ExpandScalarFormalArgs and ExpandScalarCallArgs with the newlyDan Gohman
refactored getCopyFromParts and getCopyToParts, which are more general. This effectively adds support for lowering illegal by-val vector call arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37843 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-02Teach GetNegatedExpression to negate 0-B to B in UnsafeFPMath mode, andDan Gohman
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37842 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29Only do FNEG xform when the vector type is a floating point type.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37818 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29Remove unused variables.David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37816 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29Fix a vector FP constant CSE bug.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37814 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29Remove unnecessary attributions in comments.David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37799 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29Fix reference to cached end iterator invalidated by an erase operation.David Greene
Uncovered by _GLIBCXX_DEBUG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37795 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29Remove the "special tie breaker" because it resulted in inconsistentDavid Greene
ordering and thus violated the strict weak ordering requirement of priority_queue. Uncovered by _GLIBCXX_DEBUG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37794 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29Fix misue of iterator pointing to erased object. Uncovered byDavid Greene
_GLIBCXX_DEBUG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37793 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29Fix an assertion failure in legalizing bitcast operators on targets whereDan Gohman
vectors are split down to single elements as part of legalization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37785 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-28Add new TargetLowering code to provide the final register type that anDan Gohman
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37781 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27If a livein is not used in the block. It's live through.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37764 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27Partial fix for PR1502: If a EH register is needed in a successor of landing ↵Evan Cheng
pad, add it as livein to all the blocks in the paths between the landing pad and the specified block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37763 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27Rename ("shrinkify") MVT::isExtendedValueType to MVT::isExtendedVT.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37758 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27Use getVectorTypeBreakdown in FunctionLoweringInfo::CreateRegForValueDan Gohman
to compute the number and type of registers needed for vector values instead of computing it manually. This fixes PR1529. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37755 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27Make the comment for ScalarizeVectorOp mention that it is only for useDan Gohman
with single-element vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37752 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27ok, this is something of a dirty hack, but it seems to work. (fixes e.g.Duraid Madina
the SPASS miscompilation) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37750 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27ok, this much doesn't seem to bork anythingDuraid Madina
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37749 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27revert evan's fixes (and my doofusness) since they had a huge codeDuraid Madina
quality hit. will look at this soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37748 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27pull evan's fixes - should help the nightly tester (but there are stillDuraid Madina
some issues) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37747 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27Replace std::set with SmallPtrSet.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37746 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-27Fix an obvious bug. Old code only worked for the entry block.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37743 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-26Correctly handle implcit def / use operands.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37740 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-26Properly handle kills of a physical register which has sub-registers that ↵Evan Cheng
are read by later instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37739 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-26tidy this file up a bitDuraid Madina
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37725 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-25A bunch of fixes to the BigBlock allocator improve compile-time by ~20%Duraid Madina
and code quality by ~2% on my tests. A big thank you to Roman Levenstein for this patch! See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070618/050717.html for more details. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37724 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-25Generalize MVT::ValueType and associated functions to be able to representDan Gohman
extended vector types. Remove the special SDNode opcodes used for pre-legalize vector operations, and the special MVT::Vector type used with them. Adjust lowering and legalize to work with the normal SDNode kinds instead, and to use the normal MVT functions to work with vector types instead of using the two special operands that the pre-legalize nodes held. This allows pre-legalize and post-legalize DAGs, and the code that operates on them, to be more consistent. Pre-legalize vector operators can be handled more consistently with scalar operators. And, -view-dag-combine1-dags and -view-legalize-dags now look prettier for vector code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37719 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-22Move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits fromDan Gohman
TargetLowering to SelectionDAG so that they have more convenient access to the current DAG, in preparation for the ValueType routines being changed from standalone functions to members of SelectionDAG for the pre-legalize vector type changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37704 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-22check in the BigBlock local register allocatorDuraid Madina
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37703 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-22std::set is really really terrible. Switch to SmallPtrSet to reduce compile ↵Evan Cheng
time. For Duraid's example. The overall isel time is reduced from 0.6255 sec to 0.1876 sec. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37701 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-21Tidy up ValueType names in comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37688 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-21Rename TargetLowering::getNumElements and friends toDan Gohman
TargetLowering::getNumRegisters and similar, to avoid confusion with the actual number of elements for vector types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37687 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-21Xforms:Evan Cheng
(add (select cc, 0, c), x) -> (select cc, x, (add, x, c)) (sub x, (select cc, 0, c)) -> (select cc, x, (sub, x, c)) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37685 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-19Avoid if-converting simple block that ends with unconditional branch or ↵Evan Cheng
fallthrough unless it branches / falls to the 'false' block. Not profitable, may end up increasing code size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37660 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-19Pass a SelectionDAG into SDNode::dump everywhere it's used, in preprationDan Gohman
for needing the DAG node to print pre-legalize extended value types, and to get better debug messages with target-specific nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37656 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-19document and hide two options.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37651 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-19Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoadDan Gohman
with a general target hook to identify rematerializable instructions. Some instructions are only rematerializable with specific operands, such as loads from constant pools, while others are always rematerializable. This hook allows both to be identified as being rematerializable with the same mechanism. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37644 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-19Replace TargetInstrInfo::CanBeDuplicated() with a M_NOT_DUPLICABLE bit.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37643 91177308-0d34-0410-b5e6-96231b3b80d8
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