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* Revert r112091, "Remap metadata attached to instructions when remappingDaniel Dunbar2010-08-262-12/+16
| | | | | | individual ...", which depends on r111922, which I am reverting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112157 91177308-0d34-0410-b5e6-96231b3b80d8
* Remap metadata attached to instructions when remapping individualDan Gohman2010-08-252-16/+12
| | | | | | | instructions, not when remapping modules. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112091 91177308-0d34-0410-b5e6-96231b3b80d8
* Use MapValue in the Linker instead of having a private functionDan Gohman2010-08-244-32/+3
| | | | | | | | | which does the same thing. This eliminates redundant code and handles MDNodes better. MDNode linking still doesn't fully work yet though. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111941 91177308-0d34-0410-b5e6-96231b3b80d8
* MapValue support for MDNodes. This is similar to r109117, exceptDan Gohman2010-08-241-8/+27
| | | | | | | | | that it avoids a lot of unnecessary cloning by avoiding remapping MDNode cycles when none of the nodes in the cycle actually need to be remapped. Also it uses the new temporary MDNode mechanism. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111922 91177308-0d34-0410-b5e6-96231b3b80d8
* Now that PassInfo and Pass::ID have been separated, move the rest of the ↵Owen Anderson2010-08-237-12/+14
| | | | | | passes over to the new registration API. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111815 91177308-0d34-0410-b5e6-96231b3b80d8
* fit in 80 colsChris Lattner2010-08-181-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111348 91177308-0d34-0410-b5e6-96231b3b80d8
* remove some dead code.Chris Lattner2010-08-182-12/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111344 91177308-0d34-0410-b5e6-96231b3b80d8
* Use the getUniquePredecessor() utility function, instead of doingDan Gohman2010-08-171-15/+5
| | | | | | | what it does manually. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111248 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid #include <ScalarEvolution.h> in LoopSimplify.cpp, which doesn'tDan Gohman2010-08-161-2/+1
| | | | | | | actually use ScalarEvolution. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111124 91177308-0d34-0410-b5e6-96231b3b80d8
* Instead, teach SimplifyCFG to trim non-address-taken blocks fromDan Gohman2010-08-161-2/+3
| | | | | | | indirectbr destination lists. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111122 91177308-0d34-0410-b5e6-96231b3b80d8
* LoopSimplify shouldn't split loop backedges that use indirectbr. PR7867.Dan Gohman2010-08-141-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111061 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach SimplifyCFG how to simplify indirectbr instructions.Dan Gohman2010-08-142-13/+43
| | | | | | | | | | | | - Eliminate redundant successors. - Convert an indirectbr with one successor into a direct branch. Also, generalize SimplifyCFG to be able to be run on a function entry block. It knows quite a few simplifications which are applicable to the entry block, and it only needs a few checks to avoid trouble with the entry block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111060 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate PromoteMemoryToRegisterID; just use addPreserved("mem2reg")Dan Gohman2010-08-064-5/+3
| | | | | | | instead, as an example of what this looks like. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110478 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r110396, with fixes to appease the Linux buildbot gods.Owen Anderson2010-08-068-15/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r110396 to fix buildbots.Owen Anderson2010-08-068-15/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use PassInfo* as a type identifier for passes. Instead, use the ↵Owen Anderson2010-08-058-15/+15
| | | | | | | | | address of the static ID member as the sole unique type identifier. Clean up APIs related to this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
* simplifyGabor Greif2010-07-281-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109589 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify: CallSite::get --> CallSite constructorGabor Greif2010-07-271-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109506 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove LCSSA's bogus dependence on LoopSimplify and LoopSimplify's bogusDan Gohman2010-07-262-16/+6
| | | | | | | | | | | | | | | dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier pass in StandardPasses.h to ensure that it gets scheduled at the right time. Declare that loop unrolling preserves ScalarEvolution, and shuffle some getAnalysisUsages. This eliminates one LoopSimplify and one LCCSA run in the standard compile opts sequence. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109413 91177308-0d34-0410-b5e6-96231b3b80d8
* Preserve ScalarEvolution in the loop unroller.Dan Gohman2010-07-261-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109412 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert this because we can't clone cyclic MDNodes which are creating during aNick Lewycky2010-07-241-3/+4
| | | | | | | build of llvm-gcc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109355 91177308-0d34-0410-b5e6-96231b3b80d8
* Whether function-local or not, a MDNode may reference a Function in which caseNick Lewycky2010-07-241-4/+3
| | | | | | | | it needs to be mapped to refer to the function in the new module, not the old one. Fixes PR7700. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109353 91177308-0d34-0410-b5e6-96231b3b80d8
* Speculatively revert 109117Devang Patel2010-07-221-27/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109132 91177308-0d34-0410-b5e6-96231b3b80d8
* keep in 80 colsGabor Greif2010-07-221-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109122 91177308-0d34-0410-b5e6-96231b3b80d8
* Map MDNode correctly. Devang Patel2010-07-221-6/+27
| | | | | | | A non function local MDNode can have an operand which is cloned by MapValue(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109117 91177308-0d34-0410-b5e6-96231b3b80d8
* mass elimination of reliance on automatic iterator dereferencingGabor Greif2010-07-222-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109103 91177308-0d34-0410-b5e6-96231b3b80d8
* pass dereferenced iterator to dyn_castGabor Greif2010-07-221-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109098 91177308-0d34-0410-b5e6-96231b3b80d8
* undo 80 column trespassing I causedGabor Greif2010-07-221-5/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109092 91177308-0d34-0410-b5e6-96231b3b80d8
* Make NamedMDNode not be a subclass of Value, and simplify the interfaceDan Gohman2010-07-211-4/+2
| | | | | | | for creating and populating NamedMDNodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109061 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix batch of converting RegisterPass<> to INTIALIZE_PASS().Owen Anderson2010-07-212-5/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8
* Use DebugLocs instead of MDNodes.Dan Gohman2010-07-201-32/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108967 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't look up the "dbg" metadata kind by name.Dan Gohman2010-07-202-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108961 91177308-0d34-0410-b5e6-96231b3b80d8
* Reorder the contents of various getAnalysisUsage functions, eliminatingDan Gohman2010-07-162-14/+17
| | | | | | | a redundant loopsimplify run from the default -O2 sequence. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108539 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate CallInst::ArgOffsetGabor Greif2010-07-161-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108522 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unneeded check, and correct style.Owen Anderson2010-07-151-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108427 91177308-0d34-0410-b5e6-96231b3b80d8
* make various clients of ReplaceAndSimplifyAllUses tolerate Chris Lattner2010-07-151-2/+3
| | | | | | | | | it *changing* the things it replaces, not just causing them to drop to null. There is no functionality change yet, but this is required for a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108414 91177308-0d34-0410-b5e6-96231b3b80d8
* Extend SimplifyCFG's common-destination folding heuristic to allow a singleOwen Anderson2010-07-141-5/+67
| | | | | | | | | | | "bonus" instruction to be speculatively executed. Add a heuristic to ensure we're not tripping up out-of-order execution by checking that this bonus instruction only uses values that were already guaranteed to be available. This allows us to eliminate the short circuit in (x&1)&&(x&2). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108351 91177308-0d34-0410-b5e6-96231b3b80d8
* cache dereferenced iteratorsGabor Greif2010-07-121-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108133 91177308-0d34-0410-b5e6-96231b3b80d8
* cache dereferenced iteratorsGabor Greif2010-07-121-3/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108132 91177308-0d34-0410-b5e6-96231b3b80d8
* cache result of operator*Gabor Greif2010-07-091-3/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107984 91177308-0d34-0410-b5e6-96231b3b80d8
* cache result of operator*Gabor Greif2010-07-091-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107983 91177308-0d34-0410-b5e6-96231b3b80d8
* cache result of operator*Gabor Greif2010-07-091-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107981 91177308-0d34-0410-b5e6-96231b3b80d8
* cache result of operator*Gabor Greif2010-07-091-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107975 91177308-0d34-0410-b5e6-96231b3b80d8
* cache result of operator*Gabor Greif2010-07-091-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107974 91177308-0d34-0410-b5e6-96231b3b80d8
* cache result of operator*Gabor Greif2010-07-091-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107968 91177308-0d34-0410-b5e6-96231b3b80d8
* cache result of operator*Gabor Greif2010-07-091-3/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107966 91177308-0d34-0410-b5e6-96231b3b80d8
* cache operator*'s result (in multiple functions)Gabor Greif2010-07-091-15/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107965 91177308-0d34-0410-b5e6-96231b3b80d8
* MDString is already checked earlier.Devang Patel2010-07-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107516 91177308-0d34-0410-b5e6-96231b3b80d8
* lowerinvoke needs to handle aggregate function args like sjlj eh does.Jim Grosbach2010-06-301-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107335 91177308-0d34-0410-b5e6-96231b3b80d8
* use getArgOperand instead of getOperandGabor Greif2010-06-301-8/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107269 91177308-0d34-0410-b5e6-96231b3b80d8