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* rename use_const_iterator to const_use_iterator for consistency's sakeGabor Greif2010-03-251-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99564 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce isOpaqueTy and use it rather than isa<OpaqueType>. Also, move someDuncan Sands2010-02-161-2/+2
| | | | | | | methods to try to have the type predicates be more logically positioned. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96349 91177308-0d34-0410-b5e6-96231b3b80d8
* There are two ways of checking for a given type, for example isa<PointerType>(T)Duncan Sands2010-02-161-5/+5
| | | | | | | | and T->isPointerTy(). Convert most instances of the first form to the second form. Requested by Chris. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96344 91177308-0d34-0410-b5e6-96231b3b80d8
* Change Value::getUnderlyingObject to have the MaxLookup value specified as aBob Wilson2010-01-251-4/+3
| | | | | | | | | | | | | parameter with a default value, instead of just hardcoding it in the implementation. The limit of MaxLookup = 6 was introduced in r69151 to fix a performance problem with O(n^2) behavior in instcombine, but the scalarrepl pass is relying on getUnderlyingObject to go all the way back to an AllocaInst. Making the limit part of the method signature makes it clear that by default the result is limited and should help avoid similar problems in the future. This fixes pr6126. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94433 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce Twine::toStringRef, a variant of toVector which avoids the copy if theBenjamin Kramer2010-01-131-9/+6
| | | | | | | | twine can be represented as a single StringRef. Use the new methode to simplify some twine users. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93317 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid going through the LLVMContext for type equality where it's safe to ↵Benjamin Kramer2010-01-051-7/+4
| | | | | | dereference the type pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92726 91177308-0d34-0410-b5e6-96231b3b80d8
* Change errs() to dbgs().David Greene2010-01-051-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92663 91177308-0d34-0410-b5e6-96231b3b80d8
* When doing v1->RAUW(v2), don't do anything to metadata. We don't knowChris Lattner2009-12-291-9/+0
| | | | | | | | | why one was replaced with the other. Even in the specific case of debug information, it doesn't make sense to transfer the location over, this will just result in jumbled loc info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92241 91177308-0d34-0410-b5e6-96231b3b80d8
* This is a major cleanup of the instruction metadata interfaces thatChris Lattner2009-12-281-10/+9
| | | | | | | | | | | | | | | | | | | | | | | I asked Devang to do back on Sep 27. Instead of going through the MetadataContext class with methods like getMD() and getMDs(), just ask the instruction directly for its metadata with getMetadata() and getAllMetadata(). This includes a variety of other fixes and improvements: previously all Value*'s were bloated because the HasMetadata bit was thrown into value, adding a 9th bit to a byte. Now this is properly sunk down to the Instruction class (the only place where it makes sense) and it will be folded away somewhere soon. This also fixes some confusion in getMDs and its clients about whether the returned list is indexed by the MDID or densely packed. This is now returned sorted and densely packed and the comments make this clear. This introduces a number of fixme's which I'll follow up on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92235 91177308-0d34-0410-b5e6-96231b3b80d8
* remove a bunch of locking from LLVMContextImpl. Since only one threadChris Lattner2009-11-011-2/+0
| | | | | | | | can be banging on a context at a time, this isn't needed. Owen, please review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85728 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unnecessary include.Daniel Dunbar2009-10-171-1/+0
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* Copy metadata when value is RAUW'd. It is debatable whether this is the ↵Devang Patel2009-10-131-0/+4
| | | | | | right approach for custom metadata data in general. However, right now the only custom data user, "dbg", expects this behavior while FE is constructing llvm IR with debug info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83977 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix http://llvm.org/PR5160, to let CallbackVHs modify other ValueHandles on theJeffrey Yasskin2009-10-121-23/+46
| | | | | | | same Value without breaking things. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83861 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix commento.Daniel Dunbar2009-09-221-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82544 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a TrackingVH value handle.Daniel Dunbar2009-09-221-0/+13
| | | | | | | | | | This is designed for tracking a value even when it might move (like WeakVH), but it is an error to delete the referenced value (unlike WeakVH0. TrackingVH is templated like AssertingVH on the tracked Value subclass, it is an error to RAUW a tracked value to an incompatible type. For implementation reasons the latter error is only diagnosed on accesses to a mis-RAUWed TrackingVH, because we don't want a virtual interface in a templated class. The former error is also only diagnosed on access, so that clients are allowed to delete a tracked value, as long as they don't use it. This makes it easier for the client to reason about destruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82506 91177308-0d34-0410-b5e6-96231b3b80d8
* Strip trailing whitespace.Daniel Dunbar2009-09-201-41/+41
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82359 91177308-0d34-0410-b5e6-96231b3b80d8
* Initialize HasMetadata to zero.Benjamin Kramer2009-09-171-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82145 91177308-0d34-0410-b5e6-96231b3b80d8
* Add llvm::Metadata to manage metadata used in a context. Devang Patel2009-09-161-0/+5
| | | | | | | | This interface will be used to attach metadata with an instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82060 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach getUnderlyingObject and skipPointerCasts about GlobalAliases.Dan Gohman2009-08-271-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80265 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a fast path for setName("") on an unnamed value.Daniel Dunbar2009-08-191-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79492 91177308-0d34-0410-b5e6-96231b3b80d8
* Make a SmallVector size more reasonable.Daniel Dunbar2009-08-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79403 91177308-0d34-0410-b5e6-96231b3b80d8
* Privatize the ValueHandle global map. Because this is used so heavily ↵Owen Anderson2009-08-181-21/+15
| | | | | | | | | throughout the code base, locking all accesses to it is not practical performance-wise. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79355 91177308-0d34-0410-b5e6-96231b3b80d8
* Push LLVMContexts through the IntegerType APIs.Owen Anderson2009-08-131-3/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo in an assertion string.Dan Gohman2009-08-111-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78671 91177308-0d34-0410-b5e6-96231b3b80d8
* revert r78048, it isn't worth using assertingvh here.Chris Lattner2009-08-041-8/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78119 91177308-0d34-0410-b5e6-96231b3b80d8
* switch ValueMap to using AssertingVH. This is an old patch I had layingChris Lattner2009-08-041-8/+8
| | | | | | | around in a tree I forgot about. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78048 91177308-0d34-0410-b5e6-96231b3b80d8
* Keep track of named mdnodes in a Module using an ilist.Devang Patel2009-07-291-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77476 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename MDNode.h header. It defines MDnode and other metadata classes.Devang Patel2009-07-281-1/+1
| | | | | | | | New name is Metadata.h. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77370 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure getName().data() is always null terminated.Daniel Dunbar2009-07-261-1/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77149 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite getName{Start,End,Len} in terms of getName(), instead of vice-versa.Daniel Dunbar2009-07-261-13/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77105 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify.Daniel Dunbar2009-07-261-12/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77102 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove Value::setName(const char*, unsigned).Daniel Dunbar2009-07-261-7/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77100 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove Value::setName(const char*).Daniel Dunbar2009-07-261-7/+1
| | | | | | | | | - Split into a separate patch because there is a slight functionality change, it is no longer valid to call setName(0), which was equivalent to setName(""). I'm hoping no one depends on this... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77099 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove Value::{isName, getNameRef}.Daniel Dunbar2009-07-251-12/+0
| | | | | | | Also, change MDString to use a StringRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77098 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial update to VMCore to use Twines for string arguments.Daniel Dunbar2009-07-251-2/+5
| | | | | | | | - The only meat here is in Value.{h,cpp} the rest is essential 'const std::string &' -> 'const Twine &'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77048 91177308-0d34-0410-b5e6-96231b3b80d8
* Move more to raw_ostream.Daniel Dunbar2009-07-241-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76964 91177308-0d34-0410-b5e6-96231b3b80d8
* Add llvm::Value::getNameRef, for help in API migration.Daniel Dunbar2009-07-231-1/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76893 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce MetadataBase, a base class for MDString and MDNode.Devang Patel2009-07-221-1/+4
| | | | | | | | | | Derive MDString directly from MetadataBase. Introduce new bitcode block to hold metadata. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76759 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of the Pass+Context magic.Owen Anderson2009-07-221-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert the addition of hasNoPointerOverflow to GEPOperator.Dan Gohman2009-07-201-2/+0
| | | | | | | | | | | | | Getelementptrs that are defined to wrap are virtually useless to optimization, and getelementptrs that are undefined on any kind of overflow are too restrictive -- it's difficult to ensure that all intermediate addresses are within bounds. I'm going to take a different approach. Remove a few optimizations that depended on this flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76437 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix this accidentally inverted condition.Dan Gohman2009-07-181-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76278 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert more code to use Operator instead of explicitly handling bothDan Gohman2009-07-171-20/+9
| | | | | | | | ConstantExpr and Instruction. This involves duplicating some code between GetElementPtrInst and GEPOperator, but it's not a lot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76265 91177308-0d34-0410-b5e6-96231b3b80d8
* Make BasicAliasAnalysis and Value::getUnderlyingObject useDan Gohman2009-07-171-8/+6
| | | | | | | | | GEPOperator's hasNoPointer0verflow(), and make a few places in instcombine that create GEPs that may overflow clear the NoOverflow value. Among other things, this partially addresses PR2831. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76252 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a SubclassOptionalData field to Value. See the doxygen comment forDan Gohman2009-07-171-1/+2
| | | | | | | details. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76189 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.Edwin Török2009-07-141-1/+1
| | | | | | | | | | This adds location info for all llvm_unreachable calls (which is a macro now) in !NDEBUG builds. In NDEBUG builds location info and the message is off (it only prints "UREACHABLE executed"). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the AssertingVH unittests.Jeffrey Yasskin2009-07-081-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75060 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement changes from Chris's feedback.Edwin Török2009-07-081-2/+3
| | | | | | | Finish converting lib/Target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75043 91177308-0d34-0410-b5e6-96231b3b80d8
* Start converting to new error handling API.Edwin Török2009-07-081-2/+3
| | | | | | | | cerr+abort -> llvm_report_error assert(0)+abort -> LLVM_UNREACHABLE (assert(0)+llvm_unreachable-> abort() included) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75018 91177308-0d34-0410-b5e6-96231b3b80d8
* Have scoped mutexes take referenes instead of pointers.Owen Anderson2009-07-071-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74931 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify by using no-op-when-not-multithreaded locks.Owen Anderson2009-06-181-13/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73719 91177308-0d34-0410-b5e6-96231b3b80d8
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