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path: root/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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2009-02-07Remove now-unused constructors.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63995 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07Get rid of the last non-DebugLoc versions of getNode!Dale Johannesen
Many targets build placeholder nodes for special operands, e.g. GlobalBaseReg on X86 and PPC for the PIC base. There's no sensible way to associate debug info with these. I've left them built with getNode calls with explicit DebugLoc::getUnknownLoc operands. I'm not too happy about this but don't see a good improvement; I considered adding a getPseudoOperand or something, but it seems to me that'll just make it harder to read. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63992 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06Remove more non-DebugLoc getNode variants. UseDale Johannesen
getCALLSEQ_{END,START} to permit passing no DebugLoc there. UNDEF doesn't logically have DebugLoc; add getUNDEF to encapsulate this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63978 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06Remove more non-DebugLoc versions of getNode.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63969 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06Eliminate remaining non-DebugLoc version of getTargetNode.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63951 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06get rid of some non-DebugLoc getTargetNode variants.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63909 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-06Get rid of one more non-DebugLoc getNode andDale Johannesen
its corresponding getTargetNode. Lots of caller changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63904 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05Remove a non-DebugLoc version of getNode.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05Remove 3 non-DebugLoc variants of getNode.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63886 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05Fix a bug where we were not emitting a cvt rnd sat node for convertingMon P Wang
between a unsigned integer and signed integer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63831 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05Get rid of 3 non-DebugLoc getNode variants.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-05Remove non-DebugLoc versions of getMergeValues, ZeroExtendInReg.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63800 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Remove non-DebugLoc forms of CopyToReg and CopyFromReg.Dale Johannesen
Adjust callers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-0480 column rule.Stuart Hastings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63768 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Remove non-DebugLoc versions of getLoad and getStore.Dale Johannesen
Adjust the many callers of those versions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63767 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Since I'm obliged to work with a development OS that currently doesn'tStuart Hastings
support GraphViz, I've been using the foo->dump() facility. This patch is a minor rewrite to the SelectionDAG dump() stuff to make it a little more helpful. The existing foo->dump() functionality does not change; this patch adds foo->dumpr(). All of this is only useful when running LLVM under a debugger. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63736 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Remove non-DebugLoc forms of the exotic formsDale Johannesen
of Lod and Sto; patch uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Remove some more non-DebugLoc versions of constructionDale Johannesen
functions, with callers adjusted to fit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Remove a few non-DebugLoc versions of node creationDale Johannesen
functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63703 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03DebugLoc propagation; adjustment to things omittedDale Johannesen
from SelectionDagBuild. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03Add some DL propagation to places that didn'tDale Johannesen
have it yet. More coming. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63673 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03First initialize DAG otherwise dwarf writer is used uninitialized.Devang Patel
Duncan spotted this. Thanks! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63641 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03Fill in some missing DL propagation in getNode()s.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63595 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03Propagation in TargetLowering. Includes passing a DLDale Johannesen
into SimplifySetCC which gets called elsewhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63583 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-03Use the SubclassData field to hold ExtType, isTrunc, and MemIndexedModeDan Gohman
information. This eliminates the need for the Flags field in MemSDNode, so this makes LoadSDNode and StoreSDNode smaller. Also, it makes FoldingSetNodeIDs for loads and stores two AddIntegers smaller. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63577 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-02Commit missing files.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63545 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-01Fix PR3453 and probably a bunch of other potentialDuncan Sands
crashes or wrong code with codegen of large integers: eliminate the legacy getIntegerVTBitMask and getIntegerVTSignBit methods, which returned their value as a uint64_t, so couldn't handle huge types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31Fix PR3401: when using large integers, the typeDuncan Sands
returned by getShiftAmountTy may be too small to hold shift values (it is an i8 on x86-32). Before and during type legalization, use a large but legal type for shift amounts: getPointerTy; afterwards use getShiftAmountTy, fixing up any shift amounts with a big type during operation legalization. Thanks to Dan for writing the original patch (which I shamelessly pillaged). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31If unsafe FP optimization is not set, don't allow -(A-B) => B-A becauseMon P Wang
when A==B, -0.0 != +0.0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63474 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30Make LowerCallTo and LowerArguments take a DebugLocDale Johannesen
argument. Adjust all callers and overloaded versions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63444 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30Get rid of the non-DebugLoc-ified getNOT() method.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63442 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30Propagate debug loc info for some of the *_EXTEND functions.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63434 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-30DebugLoc form of getNOT().Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63433 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29In the case of an extractelement on an insertelement value,Dan Gohman
the element indices may be equal if either one is not a constant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29Revert r63273. This was already implemented by Dale. There's no need for myBill Wendling
change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63301 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29- Add DebugLoc to getTargetNode(). Bill Wendling
- Modify TableGen to add the DebugLoc when calling getTargetNode. (The light-weight wrappers are only temporary. The non-DebugLoc version will be removed once the whole debug info stuff is finished with.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29Add DebugLoc-sensitive versions of many node creationDale Johannesen
functions. Currently omitted: memcpy, memmove, memset. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63259 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Add DebugLoc to the getNode() methods.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63245 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Add DebugLoc-aware constructors for SDNode derivedDale Johannesen
classes (those that reasonably have a DebugLoc associated with them). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63236 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-27Add an assertion to the form of SelectionDAG::getConstant that takesDan Gohman
a uint64_t to verify that the value is in range for the given type, to help catch accidental overflow. Fix a few places that relied on getConstant implicitly truncating the value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63128 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-26Take the next steps in making SDUse more consistent with LLVM Use, andDan Gohman
tidy up SDUse and related code. - Replace the operator= member functions with a set method, like LLVM Use has, and variants setInitial and setNode, which take care up updating use lists, like LLVM Use's does. This simplifies code that calls these functions. - getSDValue() is renamed to get(), as in LLVM Use, though most places can either use the implicit conversion to SDValue or the convenience functions instead. - Fix some more node vs. value terminology issues. Also, eliminate the one remaining use of SDOperandPtr, and SDOperandPtr itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62995 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-25Eliminate the loop that searches through each of the operandsDan Gohman
of each use in the SelectionDAG ReplaceAllUses* functions. Thanks to Chris for spotting this opportunity. Also, factor out code from all 5 of the ReplaceAllUses* functions into AddNonLeafNodeToCSEMaps, which is now renamed AddModifiedNodeToCSEMaps to more accurately reflect its purpose. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62964 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-25Whitespace tidiments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62963 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-25Move the N->use_empty() assert from DeleteNode toDan Gohman
DeleteNodeNotInCSEMaps, since DeleteNode just calls DeleteNodeNotInCSEMaps. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-23Fold x-0 to x in unsafe-fp-math mode. This comes up in theDan Gohman
testcase from PR3376, and in fact is sufficient to completely avoid the problem in that testcase. There's an underlying problem though; TLI.isOperationLegal considers Custom to be Legal, which might be ok in some cases, but that's what DAGCombiner is using in many places to test if something is legal when LegalOperations is true. When DAGCombiner is running after legalize, this isn't sufficient. I'll address this in a separate commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62860 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22Don't create ISD::FNEG nodes after legalize if they aren't legal.Dan Gohman
Simplify x+0 to x in unsafe-fp-math mode. This avoids a bunch of redundant work in many cases, because in unsafe-fp-math mode, ISD::FADD with a constant is considered free to negate, so the DAGCombiner often negates x+0 to -0-x thinking it's free, when in reality the end result is -x, which is more expensive than x. Also, combine x*0 to 0. This fixes PR3374. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22Add SelectionDAG::getNOT method to construct bitwise NOT operations,Bob Wilson
corresponding to the "not" and "vnot" PatFrags. Use the new method in some places where it seems appropriate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62768 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-22fix a typoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62761 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19Remove SDNode's virtual destructor. This makes it impossible forDan Gohman
SDNode subclasses to keep state that requires non-trivial destructors, however it was already effectively impossible, since the destructor isn't actually ever called. There currently aren't any SDNode subclasses affected by this, and in general it's desireable to keep SDNode objects light-weight. This eliminates the last virtual member function in the SDNode class, so it eliminates the need for a vtable pointer, making SDNode smaller. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62539 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-19Fix SelectionDAG::ReplaceAllUsesWith to behave correctly whenDan Gohman
uses are added to the From node while it is processing From's use list, because of automatic local CSE. The fix is to avoid visiting any new uses. Fix a few places in the DAGCombiner that assumed that after a RAUW call, the From node has no users and may be deleted. This fixes PR3018. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62533 91177308-0d34-0410-b5e6-96231b3b80d8
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