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* More MSVC fixes -- class/struct conflicts.Bill Wendling2009-05-121-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71601 91177308-0d34-0410-b5e6-96231b3b80d8
* Use struct instead of class to make MCVS compile.Bill Wendling2009-05-121-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71600 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify a comment.Dan Gohman2009-05-121-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71561 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor the code for collecting IV users out of LSR into an IVUsers class,Dan Gohman2009-05-121-0/+235
| | | | | | | | | | | | | | | | | | | | | | | | | and generalize it so that it can be used by IndVarSimplify. Implement the base IndVarSimplify transformation code using IVUsers. This removes TestOrigIVForWrap and associated code, as ScalarEvolution now has enough builtin overflow detection and folding logic to handle all the same cases, and more. Run "opt -iv-users -analyze -disable-output" on your favorite loop for an example of what IVUsers does. This lets IndVarSimplify eliminate IV casts and compute trip counts in more cases. Also, this happens to finally fix the remaining testcases in PR1301. Now that IndVarSimplify is being more aggressive, it occasionally runs into the problem where ScalarEvolutionExpander's code for avoiding duplicate expansions makes it difficult to ensure that all expanded instructions dominate all the instructions that will use them. As a temporary measure, IndVarSimplify now uses a FixUsesBeforeDefs function to fix up instructions inserted by SCEVExpander. Fortunately, this code is contained, and can be easily removed once a more comprehensive solution is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71535 91177308-0d34-0410-b5e6-96231b3b80d8
* Add DW_AT_APPLE_isa and DW_AT_APPLE_block. Radar 6867696Mike Stump2009-05-111-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71479 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't #include DerivedTypes.h from TargetData.h.Jay Foad2009-05-111-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71468 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a comment about the special meaning of VoidTy in this context.Dan Gohman2009-05-111-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71466 91177308-0d34-0410-b5e6-96231b3b80d8
* Add terminal width detection to llvm::sys::Process. This is needed toDouglas Gregor2009-05-114-1/+21
| | | | | | | fix Clang PRs 4148 and 4183. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71448 91177308-0d34-0410-b5e6-96231b3b80d8
* Shrink wrapping in PEI:John Mosby2009-05-111-4/+14
| | | | | | | | | | | | | | | | - reduces _static_ callee saved register spills and restores similar to Chow's original algorithm. - iterative implementation with simple heuristic limits to mitigate compile time impact. - handles placing spills/restores for multi-entry, multi-exit regions in the Machine CFG without splitting edges. - passes test-suite in LLCBETA mode. Added contains() method to ADT/SparseBitVector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71438 91177308-0d34-0410-b5e6-96231b3b80d8
* Change TargetData::getIntPtrType() to return an IntegerType instead ofJay Foad2009-05-111-3/+2
| | | | | | just a Type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71426 91177308-0d34-0410-b5e6-96231b3b80d8
* Needed #includes. Thanks Fritz van Bommel!Bill Wendling2009-05-101-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71413 91177308-0d34-0410-b5e6-96231b3b80d8
* Make MDNode use CallbackVH. Also change MDNode to store Value* instead ofNick Lewycky2009-05-102-50/+130
| | | | | | | | Constant* in preperation of a future change to support holding non-Constants in an MDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71407 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename PaddedSize to AllocSize, in the hope that thisDuncan Sands2009-05-092-9/+9
| | | | | | | | will make it more obvious what it represents, and stop it being confused with the StoreSize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71349 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix another bug in r71252. This code supports GetElementPtrDan Gohman2009-05-081-1/+1
| | | | | | | constant exprs as well as instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71262 91177308-0d34-0410-b5e6-96231b3b80d8
* Add memoization for getSCEVAtScope results for instructionsDan Gohman2009-05-081-0/+5
| | | | | | | | | | which are not analyzed with SCEV techniques, which can require brute-forcing through a large number of instructions. This fixes a massive compile-time issue on 400.perlbench (in particular, the loop in MD5Transform). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71259 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the SCEV* form of getSCEVAtScope public, to allow ScalarEvolutionDan Gohman2009-05-081-5/+4
| | | | | | | clients to use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71258 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out the code for creating SCEVs for GEPs into aDan Gohman2009-05-081-0/+4
| | | | | | | separate function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71252 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a getExitBlock utility function to LoopInfo which returns theDan Gohman2009-05-081-0/+10
| | | | | | | | exit block of a loop, if there is exactly one, similar to getExitingBlock. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71245 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out cycle-finder code and make it generic.Anton Korobeynikov2009-05-081-4/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71241 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some examples to show the difference betweenDuncan Sands2009-05-081-0/+17
| | | | | | | the various notions of type size used in LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71230 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 71165. It did more than just revert 71158 and it introducedDan Gohman2009-05-072-15/+1
| | | | | | | several regressions. The problem due to 71158 is now fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71176 91177308-0d34-0410-b5e6-96231b3b80d8
* Temporarily revert r71158. It was causing a failure during a full bootstrap:Bill Wendling2009-05-072-1/+15
| | | | | | | | | | | | | | | | | | | | | | | checking for bcopy... no checking for getc_unlocked... Assertion failed: (0 && "Unknown SCEV kind!"), function operator(), file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/src/lib/Analysis/ScalarEvolution.cpp, line 511. /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/libdecnumber/decUtility.c:360: internal compiler error: Abort trap Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://developer.apple.com/bugreporter> for instructions. make[4]: *** [decUtility.o] Error 1 make[4]: *** Waiting for unfinished jobs.... Assertion failed: (0 && "Unknown SCEV kind!"), function operator(), file /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore.roots/llvmCore~obj/src/lib/Analysis/ScalarEvolution.cpp, line 511. /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/libdecnumber/decNumber.c:5591: internal compiler error: Abort trap Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://developer.apple.com/bugreporter> for instructions. make[4]: *** [decNumber.o] Error 1 make[3]: *** [all-stage2-libdecnumber] Error 2 make[3]: *** Waiting for unfinished jobs.... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71165 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out a common base class between SCEVCommutativeExpr andDan Gohman2009-05-071-30/+34
| | | | | | | | SCEVAddRecExpr. This eliminates redundant code for visiting all the operands of an expression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71157 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the tablegen-produced DebugLoc handling into a ↵Argyrios Kyrtzidis2009-05-071-1/+4
| | | | | | | | | AsmWriter::processDebugLoc function. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71156 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename "loop aligner" pass to "code placement optimization" pass.Evan Cheng2009-05-071-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71150 91177308-0d34-0410-b5e6-96231b3b80d8
* Add const modifiers.Jakob Stoklund Olesen2009-05-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71147 91177308-0d34-0410-b5e6-96231b3b80d8
* Just turn aggressive stack coloring off at -O3.Bill Wendling2009-05-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71140 91177308-0d34-0410-b5e6-96231b3b80d8
* Temporarily revert r71010. It was causing massive failures during self-hosting.Bill Wendling2009-05-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71138 91177308-0d34-0410-b5e6-96231b3b80d8
* Make DwarfWriter::RecordInlinedFnStart more like the other DwarfWriter's ↵Argyrios Kyrtzidis2009-05-071-3/+3
| | | | | | | | | | | | methods: -Have it return a label ID -Remove the unused Instruction parameter No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71132 91177308-0d34-0410-b5e6-96231b3b80d8
* Add simplify_type specializations to allow WeakVH, AssertingVH, andDan Gohman2009-05-061-2/+37
| | | | | | | | CallbackVH to participate in dyn_cast, isa, etc. without needing an explicit conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71087 91177308-0d34-0410-b5e6-96231b3b80d8
* CMake: Detects libpthread and sets HAVE_LIBPTHREAD.Oscar Fuentes2009-05-061-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71084 91177308-0d34-0410-b5e6-96231b3b80d8
* CMake: Added cmakedefine for HAVE_PTHREAD_H.Oscar Fuentes2009-05-061-0/+3
| | | | | | | Patch by Robert Schuster! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71083 91177308-0d34-0410-b5e6-96231b3b80d8
* OCaml parameter attribute bindings from PR2752.Duncan Sands2009-05-061-0/+2
| | | | | | | Incomplete, but better than nothing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71081 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow readonly functions to unwind exceptions. TeachDuncan Sands2009-05-061-8/+18
| | | | | | | | | the optimizers about this. For example, a readonly function with no uses cannot be removed unless it is also marked nounwind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71071 91177308-0d34-0410-b5e6-96231b3b80d8
* Quotes should be printed before private prefix; some code clean up.Evan Cheng2009-05-051-1/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71032 91177308-0d34-0410-b5e6-96231b3b80d8
* Add dump method to DIDescriptor.Bill Wendling2009-05-051-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71028 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an explicit keyword.Dan Gohman2009-05-051-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71022 91177308-0d34-0410-b5e6-96231b3b80d8
* Forgot this in the last commit.Evan Cheng2009-05-051-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71014 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getInstrOperandRegClass from the scheduler to TargetInstrInfo.Evan Cheng2009-05-051-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70950 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-apply 70645, converting ScalarEvolution to useDan Gohman2009-05-043-50/+33
| | | | | | | | | | | | | CallbackVH, with fixes. allUsesReplacedWith need to walk the def-use chains and invalidate all users of a value that is replaced. SCEVs of users need to be recalcualted even if the new value is equivalent. Also, make forgetLoopPHIs walk def-use chains, since any SCEV that depends on a PHI should be recalculated when more information about that PHI becomes available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70927 91177308-0d34-0410-b5e6-96231b3b80d8
* Make DBG_STOPPOINT nodes, and therefore DBG_LABEL labels, get a DebugLoc, so ↵Chris Lattner2009-05-041-2/+2
| | | | | | | | | | | that it shows up in -print-machineinstrs. This doesn't appear to affect anything, but it was weird for some DBG_LABELs to have DebugLocs but not all of them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70921 91177308-0d34-0410-b5e6-96231b3b80d8
* Restore minor deletion.Mike Stump2009-05-043-6/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70892 91177308-0d34-0410-b5e6-96231b3b80d8
* In some rare cases, the register allocator can spill registers but end up ↵Evan Cheng2009-05-034-31/+52
| | | | | | | | | | | not utilizing registers at all. The fundamental problem is linearscan's backtracking can end up freeing more than one allocated registers. However, reloads and restores might be folded into uses / defs and freed registers might not be used at all. VirtRegMap keeps track of allocations so it knows what's not used. As a horrible hack, the stack coloring can color spill slots with *free* registers. That is, it replace reload and spills with copies from and to the free register. It unfold instructions that load and store the spill slot and replace them with register using variants. Not yet enabled. This is part 1. More coming. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70787 91177308-0d34-0410-b5e6-96231b3b80d8
* Properly handle sdiv / udiv / srem / urem libcallsAnton Korobeynikov2009-05-031-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70764 91177308-0d34-0410-b5e6-96231b3b80d8
* -Move the DwarfWriter::ValidDebugInfo check to a static ↵Argyrios Kyrtzidis2009-05-032-3/+4
| | | | | | | | | DIDescriptor::ValidDebugInfo -Create DebugLocs without the need to have a DwarfWriter around git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70682 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r70645 for now; it's causing a variety of regressions.Dan Gohman2009-05-033-18/+35
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70661 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert ScalarEvolution to use CallbackVH for its internal map. ThisDan Gohman2009-05-023-35/+18
| | | | | | | | | | makes ScalarEvolution::deleteValueFromRecords, and it's code that subtly needed to be called before ReplaceAllUsesWith, unnecessary. It also makes ValueDeletionListener unnecessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70645 91177308-0d34-0410-b5e6-96231b3b80d8
* Apply Jeffrey Yasskin's CallbackVH patch, with minor tweaks from meDan Gohman2009-05-021-1/+45
| | | | | | | | to make the copy constructor and destructor protected, and corresponding adjustments to the unittests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70644 91177308-0d34-0410-b5e6-96231b3b80d8
* Include <limits.h> to get the definition of CHAR_BIT.Dan Gohman2009-05-021-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70643 91177308-0d34-0410-b5e6-96231b3b80d8
* Previously, RecursivelyDeleteDeadInstructions provided an optionDan Gohman2009-05-022-7/+39
| | | | | | | | | | | | | | | | | | | of returning a list of pointers to Values that are deleted. This was unsafe, because the pointers in the list are, by nature of what RecursivelyDeleteDeadInstructions does, always dangling. Replace this with a simple callback mechanism. This may eventually be removed if all clients can reasonably be expected to use CallbackVH. Use this to factor out the dead-phi-cycle-elimination code from LSR utility function, and generalize it to use the RecursivelyDeleteTriviallyDeadInstructions utility function. This makes LSR more aggressive about eliminating dead PHI cycles; adjust tests to either be less trivial or to simply expect fewer instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70636 91177308-0d34-0410-b5e6-96231b3b80d8
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