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* Remove unnecessary parens.Dan Gohman2010-04-121-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101010 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid using f64 to lower memcpy from constant string. It's cheaper to use ↵Evan Cheng2010-04-081-8/+12
| | | | | | i32 store of immediates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100751 91177308-0d34-0410-b5e6-96231b3b80d8
* Three changes:Chris Lattner2010-04-071-0/+23
| | | | | | | | | | | | | | | | | 1. Introduce some enums and accessors in the InlineAsm class that eliminate a ton of magic numbers when handling inline asm SDNode. 2. Add a new MDNodeSDNode selection dag node type that holds a MDNode (shocking!) 3. Add a new argument to ISD::INLINEASM nodes that hold !srcloc metadata, propagating it to the instruction emitter, which drops it. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100605 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove assert to treat memmove and memset like memcpyMon P Wang2010-04-061-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100521 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an obvious copy-n-paste bug. It's not known to cause any miscompilation.Evan Cheng2010-04-051-4/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100494 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a comment.Dan Gohman2010-04-051-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100459 91177308-0d34-0410-b5e6-96231b3b80d8
* lowering a volatile llvm.memcpy to a libc memcpy is ok.Chris Lattner2010-04-051-1/+0
| | | | | | | PR6779 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100457 91177308-0d34-0410-b5e6-96231b3b80d8
* remove the now-redundant MMI pointer in SelectionDAG.Chris Lattner2010-04-051-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100419 91177308-0d34-0410-b5e6-96231b3b80d8
* remove some redundant MMI arguments.Chris Lattner2010-04-051-4/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100417 91177308-0d34-0410-b5e6-96231b3b80d8
* selection dag doesn't need DwarfWriter, remove some tendrils.Chris Lattner2010-04-051-4/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100382 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply address space patch after fixing an issue in MemCopyOptimizer.Mon P Wang2010-04-041-23/+29
| | | | | | | | Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100304 91177308-0d34-0410-b5e6-96231b3b80d8
* stop using DebugLoc::getUnknownLoc()Chris Lattner2010-04-021-8/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100215 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly lower memset / memcpy of undef. It should be a nop. PR6767.Evan Cheng2010-04-021-11/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100208 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r100191 since it breaks objc in clang Mon P Wang2010-04-021-26/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100199 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply address space patch after fixing an issue in MemCopyOptimizer.Mon P Wang2010-04-021-21/+26
| | | | | | | | Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100191 91177308-0d34-0410-b5e6-96231b3b80d8
* Skip checking preferred alignment of GVs defined in other translation units ↵Evan Cheng2010-04-011-1/+1
| | | | | | all together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100133 91177308-0d34-0410-b5e6-96231b3b80d8
* - Avoid using floating point stores to implement memset unless the value is ↵Evan Cheng2010-04-011-10/+14
| | | | | | | | | zero. - Do not try to infer GV alignment unless its type is sized. It's not possible to infer alignment if it has opaque type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100118 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix sdisel memcpy, memset, memmove lowering:Evan Cheng2010-04-011-85/+133
| | | | | | | | | | | | | | 1. Makes it possible to lower with floating point loads and stores. 2. Avoid unaligned loads / stores unless it's fast. 3. Fix some memcpy lowering logic bug related to when to optimize a load from constant string into a constant. 4. Adjust x86 memcpy lowering threshold to make it more sane. 5. Fix x86 target hook so it uses vector and floating point memory ops more effectively. rdar://7774704 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100090 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots.Bob Wilson2010-03-301-27/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99948 91177308-0d34-0410-b5e6-96231b3b80d8
* Added support for address spaces and added a isVolatile field to memcpy, ↵Mon P Wang2010-03-301-22/+27
| | | | | | | | | | memmove, and memset, e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1) A update of langref will occur in a subsequent checkin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99928 91177308-0d34-0410-b5e6-96231b3b80d8
* Funky indentation.Evan Cheng2010-03-301-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99901 91177308-0d34-0410-b5e6-96231b3b80d8
* Pool allocate SDDbgValue nodes.Evan Cheng2010-03-291-0/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99836 91177308-0d34-0410-b5e6-96231b3b80d8
* Change how dbg_value sdnodes are converted into machine instructions. Their ↵Evan Cheng2010-03-251-20/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | placement should be determined by the relative order of incoming llvm instructions. The scheduler will now use the SDNode ordering information to determine where to insert them. A dbg_value instruction is inserted after the instruction with the last highest source order and before the instruction with the next highest source order. It will optimize the placement by inserting right after the instruction that produces the value if they have consecutive order numbers. Here is a theoretical example that illustrates why the placement is important. tmp1 = store tmp1 -> x ... tmp2 = add ... ... call ... store tmp2 -> x Now mem2reg comes along: tmp1 = dbg_value (tmp1 -> x) ... tmp2 = add ... ... call ... dbg_value (tmp2 -> x) When the debugger examine the value of x after the add instruction but before the call, it should have the value of tmp1. Furthermore, for dbg_value's that reference constants, they should not be emitted at the beginning of the block (since they do not have "producers"). This patch also cleans up how SDISel manages DbgValue nodes. It allow a SDNode to be referenced by multiple SDDbgValue nodes. When a SDNode is deleted, it uses the information to find the SDDbgValues and invalidate them. They are not deleted until the corresponding SelectionDAG is destroyed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99469 91177308-0d34-0410-b5e6-96231b3b80d8
* Define placement new wrappers for BumpPtrAllocator andDan Gohman2010-03-181-91/+63
| | | | | | | | RecyclingAllocator to allow client code to be simpler, and simplify several clients. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98847 91177308-0d34-0410-b5e6-96231b3b80d8
* SIGN_EXTEND from the same type as the dest is valid.Chris Lattner2010-03-151-1/+1
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* sink the call to VT.getSizeInBits() down into its uses,Chris Lattner2010-03-151-7/+5
| | | | | | | not all unary nodes necessarily have a simple result type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98547 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename SDDbgValue.h to SDNodeDbgValue.h for consistency.Evan Cheng2010-03-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98513 91177308-0d34-0410-b5e6-96231b3b80d8
* Make default expansion for FP16 <-> FP32 nodes into libcallsAnton Korobeynikov2010-03-141-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98501 91177308-0d34-0410-b5e6-96231b3b80d8
* change the LabelSDNode to be EHLabelSDNode and make it holdChris Lattner2010-03-141-8/+7
| | | | | | | | | an MCSymbol. Make the EH_LABEL MachineInstr hold its label with an MCSymbol instead of ID. Fix a bug in MMI.cpp which would return labels named "Label4" instead of "label4". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98463 91177308-0d34-0410-b5e6-96231b3b80d8
* Progress towards shepherding debug info through SelectionDAG.Dale Johannesen2010-03-101-1/+28
| | | | | | | | | No functional effect yet. This is still evolving and should not be viewed as final. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98195 91177308-0d34-0410-b5e6-96231b3b80d8
* Use Other as a sentinel instead of iAny.Chris Lattner2010-03-071-4/+4
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* Fix a typo Duncan noticed.Dan Gohman2010-03-041-1/+1
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* Fix a bug in SelectionDAG's ReplaceAllUsesWith in the case whereDan Gohman2010-03-031-4/+45
| | | | | | | | | | | CSE and recursive RAUW calls delete a node from the use list, invalidating the use list iterator. There's currently no known way to reproduce this in an unmodified LLVM, however there's no fundamental reason why a SelectionDAG couldn't be formed which would trigger this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97665 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead parameter passing.Bill Wendling2010-03-021-3/+3
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* remove all but one version of SelectionDAG::MorphNodeToChris Lattner2010-03-011-81/+0
| | | | | | | (the most general) the others are dead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97511 91177308-0d34-0410-b5e6-96231b3b80d8
* some trivial microoptimizations.Chris Lattner2010-03-011-6/+8
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* enhance the new isel to handle the 'node already exists'Chris Lattner2010-02-281-1/+1
| | | | | | | case of MorphNodeTo directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97417 91177308-0d34-0410-b5e6-96231b3b80d8
* clean up various VT manipulations, patch by Micah Villmow! PR6337Chris Lattner2010-02-241-9/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97072 91177308-0d34-0410-b5e6-96231b3b80d8
* convert cycle checker to smallptrset, add comments and make itChris Lattner2010-02-241-20/+20
| | | | | | | more elegant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97059 91177308-0d34-0410-b5e6-96231b3b80d8
* revert david's patch which does not even build.Chris Lattner2010-02-241-4/+4
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* Use a SmallPtrSet as suggested by Chris.David Greene2010-02-241-4/+4
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* When forming SSE min and max nodes for UGE and ULE comparisons, it'sDan Gohman2010-02-241-0/+23
| | | | | | | | | | | | necessary to swap the operands to handle NaN and negative zero properly. Also, reintroduce logic for checking for NaN conditions when forming SSE min and max instructions, fixed to take into consideration NaNs and negative zeros. This allows forming min and max instructions in more cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97025 91177308-0d34-0410-b5e6-96231b3b80d8
* add node #'s to debug dumps.Chris Lattner2010-02-241-3/+3
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* make selectnodeto set the nodeid to -1. This makes it more akin toChris Lattner2010-02-231-1/+4
| | | | | | | creating a new node then replacing uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97000 91177308-0d34-0410-b5e6-96231b3b80d8
* Print node ID's in dumps and views if set.Chris Lattner2010-02-231-0/+3
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* Speed up cycle checking significantly by caching results.David Greene2010-02-231-3/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96956 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the non-temporal bit "significant" in MemSDNodes so they aren'tDavid Greene2010-02-171-8/+17
| | | | | | | CSE'd or otherwise combined with temporal MemSDNodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96505 91177308-0d34-0410-b5e6-96231b3b80d8
* There are two ways of checking for a given type, for example isa<PointerType>(T)Duncan Sands2010-02-161-1/+1
| | | | | | | | 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
* Fix a memory leak. Patch by Nicolas Geoffray.Evan Cheng2010-02-151-0/+1
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* Add non-temporal flags and remove an assumption of default arguments.David Greene2010-02-151-15/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96240 91177308-0d34-0410-b5e6-96231b3b80d8
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