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* Don't abuse the quirky behavior of LegalizeDAG for XINT_TO_FP andEli Friedman2009-05-262-6/+6
| | | | | | | | FP_TO_XINT. Necessary for some cleanups I'm working on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72431 91177308-0d34-0410-b5e6-96231b3b80d8
* For the new ar --plugin libLLVMgold.so to work we need libLTO linked withEdwin Török2009-05-261-1/+1
| | | | | | | | | | | | pthreads, otherwise ar complains of unresolved references to pthread_mutex_*. LTO doesn't actually use pthreads, but ManagedStatic does. Fix this by linking in LIBS (that contains pthreads) for LTO and gold. For now this links in more libs than needed (libffi for example), we can figure out later how to link in those libs per-tool later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72430 91177308-0d34-0410-b5e6-96231b3b80d8
* LiveVariables::VarInfo contains an AliveBlocks BitVector, which has as manyJeffrey Yasskin2009-05-264-19/+17
| | | | | | | | | | | entries as there are basic blocks in the function. LiveVariables::getVarInfo creates a VarInfo struct for every register in the function, leading to quadratic space use. This patch changes the BitVector to a SparseBitVector, which doesn't help the worst-case memory use but does reduce the actual use in very long functions with short-lived variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72426 91177308-0d34-0410-b5e6-96231b3b80d8
* For the return type of SCEVUDivExpr, use the RHS' type instead ofDan Gohman2009-05-261-1/+6
| | | | | | | | | that of the LHS. It doesn't matter for correctness, but the LHS is more likely than the RHS to be a pointer type in exotic cases, and it's more tidy to have it return the integer type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72424 91177308-0d34-0410-b5e6-96231b3b80d8
* Give SCEVNaryExpr a doxygen comment.Dan Gohman2009-05-261-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72423 91177308-0d34-0410-b5e6-96231b3b80d8
* In cases where a pointer value is an operand of a multiplication orDan Gohman2009-05-262-3/+103
| | | | | | | | division operation, don't attempt to use the operation's value as the base of a getelementptr. This fixes PR4271. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72422 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete a bunch of dead code from LegalizeDAG.Eli Friedman2009-05-261-3667/+29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72414 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate VarInfo::UsedBlocks.Evan Cheng2009-05-264-17/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72411 91177308-0d34-0410-b5e6-96231b3b80d8
* make memdep use the getModRefInfo method for stores instead of theChris Lattner2009-05-252-1/+22
| | | | | | | | low-level alias() method, allowing it to reason more aggressively about pointers into constant memory. PR4189 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72403 91177308-0d34-0410-b5e6-96231b3b80d8
* Audit the type constructors. Previously it was possible to create [0 x void]Nick Lewycky2009-05-251-7/+11
| | | | | | | | or use labels as members of structures for example. Also included a couple of whitespace fixes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72402 91177308-0d34-0410-b5e6-96231b3b80d8
* add some late optimizations that GCC does. It thinks these are a winChris Lattner2009-05-251-0/+14
| | | | | | | even on Core2, not just AMD processors which was a surprise to me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72396 91177308-0d34-0410-b5e6-96231b3b80d8
* fix typoChris Lattner2009-05-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72395 91177308-0d34-0410-b5e6-96231b3b80d8
* we should eventually add -march=atom and the new atom movbe instruction.Chris Lattner2009-05-251-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72387 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the crash debugger to actually bisect globals once it's determined that itNick Lewycky2009-05-251-1/+1
| | | | | | | can't just eliminate all global initializers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72378 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a bisection step on the list of instructions before doing the linearNick Lewycky2009-05-251-0/+92
| | | | | | | | simplification. It's not clear to me whether this can replace the first of the linear instruction simplification stages or not, so I left it in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72377 91177308-0d34-0410-b5e6-96231b3b80d8
* Various comment fixes.Dan Gohman2009-05-242-11/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72376 91177308-0d34-0410-b5e6-96231b3b80d8
* Change ScalarEvolution::getSCEVAtScope to always return the original valueDan Gohman2009-05-243-27/+12
| | | | | | | | | in the case where a loop exit value cannot be computed, instead of only in some cases while using SCEVCouldNotCompute in others. This simplifies getSCEVAtScope's callers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72375 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a comment which should hopefully make the purpose of this method a Eli Friedman2009-05-241-0/+3
| | | | | | | | bit clearer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72374 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor improvement to FCOPYSIGN to use BIT_CONVERT in cases where the Eli Friedman2009-05-241-10/+24
| | | | | | | | corresponding integer type is legal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72373 91177308-0d34-0410-b5e6-96231b3b80d8
* Move Rewriter.clear() earlier, to avoid triggerring the AssertingVH byEdwin Török2009-05-241-2/+8
| | | | | | | | one of the RecursivelyDeleteTriviallyDeadInstructions. Add a comment explaining why the cache needs to be cleared. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72372 91177308-0d34-0410-b5e6-96231b3b80d8
* Instead of clearing the rewriter, don't attempt to rewrite dead phi nodes.Edwin Török2009-05-242-3/+4
| | | | | | | Also fix 80 column violation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72371 91177308-0d34-0410-b5e6-96231b3b80d8
* When rewriting the loop exit test with the canonical induction variable,Dan Gohman2009-05-242-1/+42
| | | | | | | | leave the original comparison in place if it has other uses, since the other uses won't be dominated by the new comparison instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72369 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix this code for hosts where std::vector doesn't have .data().Dan Gohman2009-05-241-1/+1
| | | | | | | Use &Ops[0] instead, which is safe since Ops will never be empty here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72368 91177308-0d34-0410-b5e6-96231b3b80d8
* When replacing a floating-point comparison with an integerDan Gohman2009-05-241-0/+1
| | | | | | | comparison, use takeName to give the integer comparison a name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72367 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize SCEVExpander::visitAddRecExpr's GEP persuit, and avoidDan Gohman2009-05-244-54/+221
| | | | | | | | | | | | | | | | sending SCEVUnknowns to expandAddToGEP. This avoids the need for expandAddToGEP to bend the rules and peek into SCEVUnknown expressions. Factor out the code for testing whether a SCEV can be factored by a constant for use in a GEP index. This allows it to handle SCEVAddRecExprs, by recursing. As a result, SCEVExpander can now put more things in GEP indices, so it emits fewer explicit mul instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72366 91177308-0d34-0410-b5e6-96231b3b80d8
* When the low bits of one operand of an add are zero, that numberDan Gohman2009-05-241-10/+31
| | | | | | | of low bits of the other operand are preserved in the output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72365 91177308-0d34-0410-b5e6-96231b3b80d8
* The rewriter may hold references to instructions that are deleted because ↵Edwin Török2009-05-244-2/+45
| | | | | | | | | | | | they are trivially dead. Fix by clearing the rewriter cache before deleting the trivially dead instructions. Also make InsertedExpressions use an AssertingVH to catch these bugs easier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72364 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite ISD::FCOPYSIGN lowering to never use i64. Not really ideal, but Eli Friedman2009-05-241-30/+21
| | | | | | | | it's late, and I don't have any better ideas at the moment. Fixes PR4257. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72363 91177308-0d34-0410-b5e6-96231b3b80d8
* Make bugpoint emit a bugpoint-reduced-blocks.bc, because bugpoint itselfEdwin Török2009-05-241-0/+3
| | | | | | | | can crash during instruction simplification (for example if it creates a broken module). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72362 91177308-0d34-0410-b5e6-96231b3b80d8
* Add -disable-global-remove option to bugpoint.Edwin Török2009-05-241-1/+6
| | | | | | | | | | Sometimes when bugpointing a crash the bugpoint-reduced-simplified.bc reproduces a totally different bug than the original one ("GV doesn't have initializer"). Although its useful to report that bug too, I need a way to reduce the original bug, hence I introduced -disable-global-remove. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72361 91177308-0d34-0410-b5e6-96231b3b80d8
* Update for CMakeLists; untested, so tell me if there are issues.Eli Friedman2009-05-241-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72360 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove checks of getTypeAction from LegalizeOp; we already assert that Eli Friedman2009-05-241-503/+105
| | | | | | | | | all results and all operands are legal, so this change shouldn't affect behavior at all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72359 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable type legalization in LegalizeDAG.Eli Friedman2009-05-241-94/+39
| | | | | | | | | This leaves around 4000 lines of dead code; I'll clean that up in subsequent commits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72358 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove border around table used for layout.Nick Lewycky2009-05-241-11/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72357 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the PPC backend use a legal type for the operands to the BUILD_VECTOREli Friedman2009-05-241-5/+3
| | | | | | | | nodes it generates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72356 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in the expansion of EXTRACT_SUBVECTOR in Eli Friedman2009-05-231-1/+2
| | | | | | | | ExpandExtractFromVectorThroughStack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72351 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the X86 backend mark EXTRACT_SUBVECTOR as Expand, at least for the Eli Friedman2009-05-231-0/+1
| | | | | | | | moment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72350 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a proper implementation of EXTRACT_SUBVECTOR legalization that Eli Friedman2009-05-231-19/+42
| | | | | | | | | | doesn't split legal vector operands. This is necessary because the type legalization (and therefore, vector splitting) code will be going away soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72349 91177308-0d34-0410-b5e6-96231b3b80d8
* Use latin symbols. I was told not everybody has a UTF-8 capable editor.Edwin Török2009-05-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72343 91177308-0d34-0410-b5e6-96231b3b80d8
* Write family name last, as other entries in this file.Edwin Török2009-05-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72340 91177308-0d34-0410-b5e6-96231b3b80d8
* Add myself.Edwin Török2009-05-231-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72339 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ARMv7 architecture, Cortex processors and different FPU modes handling.Anton Korobeynikov2009-05-233-13/+28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72337 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit ARM Build AttributesAnton Korobeynikov2009-05-232-0/+91
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72336 91177308-0d34-0410-b5e6-96231b3b80d8
* Propagate CPU string out of SubtargetFeaturesAnton Korobeynikov2009-05-2314-24/+50
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72335 91177308-0d34-0410-b5e6-96231b3b80d8
* Work around a page size issue on Cygwin.Jay Foad2009-05-231-1/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72332 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR4254.Edwin Török2009-05-232-2/+16
| | | | | | | | | | | | | The DAGCombiner created a negative shiftamount, stored in an unsigned variable. Later the optimizer eliminated the shift entirely as being undefined. Example: (srl (shl X, 56) 48). ShiftAmt is 4294967288. Fix it by checking that the shiftamount is positive, and storing in a signed variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72331 91177308-0d34-0410-b5e6-96231b3b80d8
* stat64/open64/lseek64 for the interpreterEdwin Török2009-05-231-1/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72329 91177308-0d34-0410-b5e6-96231b3b80d8
* available_externall linkage is not local, this was confusing the codegenerator,Edwin Török2009-05-236-7/+28
| | | | | | | | | | and it wasn't generating calls through @PLT for these functions. hasLocalLinkage() is now false for available_externally, I attempted to fix the inliner and dce to handle available_externally properly. It passed make check. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72328 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix test to account for legalization changes; I think this ends up Eli Friedman2009-05-231-1/+1
| | | | | | | | running an extra DAGCombine pass which improves the code a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72326 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new step to legalization to legalize vector math operations. This Eli Friedman2009-05-233-0/+375
| | | | | | | | | | | | | will allow simplifying LegalizeDAG to eliminate type legalization. (I have a patch to do that, but it's not quite finished; I'll commit it once it's finished and I've fixed any review comments for this patch.) See the comment at the beginning of lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp for more details on the motivation for this patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72325 91177308-0d34-0410-b5e6-96231b3b80d8
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