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* (Hopefully) silence a warning.Owen Anderson2009-03-051-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66158 91177308-0d34-0410-b5e6-96231b3b80d8
* Be more careful about choosing restore points when doing restore folding. ↵Owen Anderson2009-03-051-5/+28
| | | | | | This fixes some subtle miscompilations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66147 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix how livein live intervals are handled. Previously it could end at MBB ↵Evan Cheng2009-03-051-4/+9
| | | | | | start. Sorry, no small test case possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66129 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix BuildVectorSDNode::isConstantSplat to handle one-element vectors.Bob Wilson2009-03-041-2/+2
| | | | | | | | It is an error to call APInt::zext with a size that is equal to the value's current size, so use zextOrTrunc instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66039 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a restore folder, which shaves a dozen or so machineinstrs off oggenc. ↵Owen Anderson2009-03-041-6/+75
| | | | | | Update a testcase to check this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66029 91177308-0d34-0410-b5e6-96231b3b80d8
* PR3686: make the legalizer handle bitcast from i80 to x86 long double.Eli Friedman2009-03-042-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66021 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR3701. 1. X86 target renamed eflags register to flags. This matches ↵Evan Cheng2009-03-041-25/+54
| | | | | | what llvm-gcc generates so codegen knows flags register is being clobbered by inline asm. 2. BURR scheduler should also check if inline asm nodes can clobber "live" physical registers. Previously it was only checking target nodes with implicit defs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65996 91177308-0d34-0410-b5e6-96231b3b80d8
* The DAG combiner was performing a BT combine. The BT combine had a value of -1,Bill Wendling2009-03-041-11/+22
| | | | | | | | | | | | | so it changed it into a 31 via the TLO.ShrinkDemandedConstant() call. Then it would go through the DAG combiner again. This time it had a value of 31, which was turned into a -1 by TLI.SimplifyDemandedBits(). This would ping pong forever. Teach the TLO.ShrinkDemandedConstant() call not to lower a value if the demanded value is an XOR of all ones. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65985 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize BuildVectorSDNode::isConstantSplat to use APInts and handleBob Wilson2009-03-021-78/+49
| | | | | | | | | arbitrary vector sizes. Add an optional MinSplatBits parameter to specify a minimum for the splat element size. Update the PPC target to use the revised interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65899 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a problem with DAGCombine on 64b targets where foldingNate Begeman2009-03-011-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | extracts + build_vector into a shuffle would fail, because the type of the new build_vector would not be legal. Try harder to create a legal build_vector type. Note: this will be totally irrelevant once vector_shuffle no longer takes a build_vector for shuffle mask. New: _foo: xorps %xmm0, %xmm0 xorps %xmm1, %xmm1 subps %xmm1, %xmm1 mulps %xmm0, %xmm1 addps %xmm0, %xmm1 movaps %xmm1, 0 Old: _foo: xorps %xmm0, %xmm0 movss %xmm0, %xmm1 xorps %xmm2, %xmm2 unpcklps %xmm1, %xmm2 pshufd $80, %xmm1, %xmm1 unpcklps %xmm1, %xmm2 pslldq $16, %xmm2 pshufd $57, %xmm2, %xmm1 subps %xmm0, %xmm1 mulps %xmm0, %xmm1 addps %xmm0, %xmm1 movaps %xmm1, 0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65791 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor optimization:Evan Cheng2009-03-011-29/+237
| | | | | | | | | | | | Look for situations like this: %reg1024<def> = MOV r1 %reg1025<def> = MOV r0 %reg1026<def> = ADD %reg1024, %reg1025 r0 = MOV %reg1026 Commute the ADD to hopefully eliminate an otherwise unavoidable copy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65752 91177308-0d34-0410-b5e6-96231b3b80d8
* Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a newBob Wilson2009-03-011-0/+91
| | | | | | | method in a BuildVectorSDNode "pseudo-class". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65747 91177308-0d34-0410-b5e6-96231b3b80d8
* Last commit accidentially deleted this code.Evan Cheng2009-02-281-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65679 91177308-0d34-0410-b5e6-96231b3b80d8
* It is possible that subprgoram definition is only encoding return value ↵Devang Patel2009-02-271-2/+6
| | | | | | directly, instsad of an DIArray of all argument types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65643 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor TLS code and add some tests. The tests and expected results are:Rafael Espindola2009-02-271-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | pic | declaration | linkage | visibility | !pic | declaration | external | default | tls1.ll tls2.ll | local exec pic | declaration | external | default | tls1-pic.ll tls2-pic.ll | general dynamic !pic | !declaration | external | default | tls3.ll tls4.ll | initial exec pic | !declaration | external | default | tls3-pic.ll tls4-pic.ll | general dynamic !pic | declaration | external | hidden | tls7.ll tls8.ll | local exec pic | declaration | external | hidden | X | local dynamic !pic | !declaration | external | hidden | tls9.ll tls10.ll | local exec pic | !declaration | external | hidden | X | local dynamic !pic | declaration | internal | default | tls5.ll tls6.ll | local exec pic | declaration | internal | default | X | local dynamic The ones marked with an X have not been implemented since local dynamic is not implemented. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65632 91177308-0d34-0410-b5e6-96231b3b80d8
* MachineLICM CSE should match destination register classes; avoid hoisting ↵Evan Cheng2009-02-271-3/+13
| | | | | | implicit_def's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65592 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable stack slot coloring DCE. Evan's spiller fixes were needed before ↵Owen Anderson2009-02-261-7/+2
| | | | | | this could happen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65501 91177308-0d34-0410-b5e6-96231b3b80d8
* The last commit was overly conservative. It's ok to reuse value that's ↵Evan Cheng2009-02-261-7/+0
| | | | | | already marked livein. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65498 91177308-0d34-0410-b5e6-96231b3b80d8
* If an available register falls through to a succ block, unset the last kill. ↵Evan Cheng2009-02-261-37/+76
| | | | | | Sorry, it's impossible to reduce a sensible test case. It basically requires the moon and stars to align in order to cause a failure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65497 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.Evan Cheng2009-02-257-219/+104
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65482 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix big-endian codegen bug. We're splitting upDale Johannesen2009-02-251-1/+2
| | | | | | | | | | | | | overly long ints, e.g. i96, into pieces at PHIs and the nodes that feed into them; however big-endian reverses the order of the pieces (for some reason), and wasn't doing it the same way on both sides, so the pieces didn't match and runtime failures ensued. Fixes 188.ammp and sqlite3 on ppc32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65481 91177308-0d34-0410-b5e6-96231b3b80d8
* Print variable's display name in dwarf DIE.Devang Patel2009-02-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65468 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up dwarf writer, part 1. This eliminated the horrible recursive ↵Evan Cheng2009-02-254-335/+414
| | | | | | | | | getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior. This is a very minor compile time win. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65438 91177308-0d34-0410-b5e6-96231b3b80d8
* Expand tabs to spaces (overlooked in previous commit)Scott Michel2009-02-251-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65427 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove all "cached" data from BuildVectorSDNode, preferring to retrieveScott Michel2009-02-251-13/+8
| | | | | | | | | | results via reference parameters. This patch also appears to fix Evan's reported problem supplied as a reduced bugpoint test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65426 91177308-0d34-0410-b5e6-96231b3b80d8
* Overhaul my earlier submission due to feedback. It's a large patch, but most ofBill Wendling2009-02-243-4/+2
| | | | | | | | | | | | | them are generic changes. - Use the "fast" flag that's already being passed into the asm printers instead of shoving it into the DwarfWriter. - Instead of calling "MI->getParent()->getParent()" for every MI, set the machine function when calling "runOnMachineFunction" in the asm printers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65379 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a debugging option for SSC DCE.Owen Anderson2009-02-241-0/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65375 91177308-0d34-0410-b5e6-96231b3b80d8
* - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emitBill Wendling2009-02-244-14/+15
| | | | | | | | | | | a DBG_LABEL or not. We want to fall back to the original way of emitting debug info when we're in -O0/-fast mode. - Add plumbing in to pass the "Fast" flag to places that need it. - XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I need to investigate still. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65367 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a ValueTracking rule: RHS means operand 1, not 0. Add a simpleDan Gohman2009-02-241-1/+1
| | | | | | | | ashr instcombine to help expose this code. And apply the fix to SelectionDAG's copy of this code too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65364 91177308-0d34-0410-b5e6-96231b3b80d8
* gdb uses DW_AT_prototyped to identify K&R style in C based languages.Devang Patel2009-02-241-0/+5
| | | | | | | This fixes objc.dg/dwarf-prototypes.m scan-assembler DW_AT_prototyped from llvmgcc42 test suite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65357 91177308-0d34-0410-b5e6-96231b3b80d8
* If there is not any debug info available for any global variables and any ↵Devang Patel2009-02-241-13/+26
| | | | | | subprograms then there is not any debug info to emit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65352 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce the BuildVectorSDNode class that encapsulates the ISD::BUILD_VECTORScott Michel2009-02-227-101/+220
| | | | | | | | | | instruction. The class also consolidates the code for detecting constant splats that's shared across PowerPC and the CellSPU backends (and might be useful for other backends.) Also introduces SelectionDAG::getBUID_VECTOR() for generating new BUILD_VECTOR nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65296 91177308-0d34-0410-b5e6-96231b3b80d8
* If a use operand is marked isKill, don't forget to add kill to its live ↵Evan Cheng2009-02-221-4/+6
| | | | | | interval as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65279 91177308-0d34-0410-b5e6-96231b3b80d8
* bug 3610: Floating point vaarg not softened.Richard Pennington2009-02-212-0/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65239 91177308-0d34-0410-b5e6-96231b3b80d8
* Drop bunch of half-working stuff in the ext_weak linkage support.Anton Korobeynikov2009-02-211-10/+0
| | | | | | | | | | | Now we're using one gross, but quite robust hack :) (previous ones did not work, for example, when ext_weak symbol was used deep inside constant expression in the initializer). The proper fix of this problem will require some quite huge asmprinter changes and that's why was postponed. This fixes PR3629 by the way :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65230 91177308-0d34-0410-b5e6-96231b3b80d8
* If two-address def is dead and the instruction does not define other ↵Evan Cheng2009-02-211-0/+30
| | | | | | registers, and it doesn't produce side effects, just delete the instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65218 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug that David Greene found in the DAGCombiner's logicDan Gohman2009-02-201-2/+2
| | | | | | | | that checks whether it's safe to transform a store of a bitcast value into a store of the original value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65201 91177308-0d34-0410-b5e6-96231b3b80d8
* - Early exit a nested block.Bill Wendling2009-02-201-23/+27
| | | | | | | | - Correct comment. - Whitespace changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65149 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a crash in the pre-alloc splitter exposed by recent codegen changes.Owen Anderson2009-02-201-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65121 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a quick pass to the stack slot colorer to eliminate some trivially ↵Owen Anderson2009-02-201-0/+62
| | | | | | | | | | redundant spills after coloring. Ideally these would never get created in the first place, but until we enhance the spiller to have a more global picture of what's happening, this is necessary for code quality in some circumstances. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65120 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an accessor method to DwarfWriter to tell of debugging info should be ↵Bill Wendling2009-02-201-5/+11
| | | | | | emitted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65092 91177308-0d34-0410-b5e6-96231b3b80d8
* Temporarily revert r65065. It was causing test failures.Bill Wendling2009-02-191-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65068 91177308-0d34-0410-b5e6-96231b3b80d8
* Print out debug info when printing the machine instruction.Bill Wendling2009-02-191-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65067 91177308-0d34-0410-b5e6-96231b3b80d8
* Check for -fast here too.Bill Wendling2009-02-191-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65065 91177308-0d34-0410-b5e6-96231b3b80d8
* Generate these labels when we're in "fast" mode, not simply when we're no inBill Wendling2009-02-193-11/+9
| | | | | | | "optimize-for-size" mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65064 91177308-0d34-0410-b5e6-96231b3b80d8
* The subprogram die may not exist while creating "default" scope.Devang Patel2009-02-181-1/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64920 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support to the JIT for true non-lazy operation. When a call to a functionNate Begeman2009-02-182-0/+9
| | | | | | | | | | | | | | | | | | | | | that has not been JIT'd yet, the callee is put on a list of pending functions to JIT. The call is directed through a stub, which is updated with the address of the function after it has been JIT'd. A new interface for allocating and updating empty stubs is provided. Add support for removing the ModuleProvider the JIT was created with, which would otherwise invalidate the JIT's PassManager, which is initialized with the ModuleProvider's Module. Add support under a new ExecutionEngine flag for emitting the infomration necessary to update Function and GlobalVariable stubs after JITing them, by recording the address of the stub and the name of the GlobalValue. This allows code to be copied from one address space to another, where libraries may live at different virtual addresses, and have the stubs updated with their new correct target addresses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64906 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate several more unnecessary intptr_t casts.Dan Gohman2009-02-183-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64888 91177308-0d34-0410-b5e6-96231b3b80d8
* The debugger sometimes lookup dynamically in the runtime to find ivar info ↵Devang Patel2009-02-171-0/+6
| | | | | | | | | of any Objective-C classes. It would be very helpful to debugger if the compiler encodes runtime version number in DWARF. Add support for two additional DWARF attributes to encode Objective-C runtime version number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64834 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove trailing whitespace to reduce later commit patch noise.Scott Michel2009-02-176-1014/+1014
| | | | | | | | | (Note: Eventually, commits like this will be handled via a pre-commit hook that does this automagically, as well as expand tabs to spaces and look for 80-col violations.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64827 91177308-0d34-0410-b5e6-96231b3b80d8
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