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* Eliminate an unnecessary SelectionDAG dependency in getOptimalMemOpType.Dan Gohman2010-04-161-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101531 91177308-0d34-0410-b5e6-96231b3b80d8
* Add const qualifiers to CodeGen's use of LLVM IR constructs.Dan Gohman2010-04-151-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid using f64 to lower memcpy from constant string. It's cheaper to use ↵Evan Cheng2010-04-081-2/+5
| | | | | | i32 store of immediates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100751 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply address space patch after fixing an issue in MemCopyOptimizer.Mon P Wang2010-04-041-1/+1
| | | | | | | | 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
* use DebugLoc default ctor instead of DebugLoc::getUnknownLoc()Chris Lattner2010-04-021-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100214 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly lower memset / memcpy of undef. It should be a nop. PR6767.Evan Cheng2010-04-021-7/+10
| | | | 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 Wang2010-04-021-1/+1
| | | | 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 Wang2010-04-021-1/+1
| | | | | | | | 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
* Add comments about DstAlign and SrcAlign.Evan Cheng2010-04-011-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100132 91177308-0d34-0410-b5e6-96231b3b80d8
* - Avoid using floating point stores to implement memset unless the value is ↵Evan Cheng2010-04-011-0/+1
| | | | | | | | | 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 Cheng2010-04-011-2/+2
| | | | | | | | | | | | | | 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 Wilson2010-03-301-1/+1
| | | | 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 Wang2010-03-301-1/+1
| | | | | | | | | | 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
* Now that the default for Darwin platforms is to place the LSDA into the TEXTBill Wendling2010-03-151-2/+1
| | | | | | | section, remove the target-specific code that performs this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98580 91177308-0d34-0410-b5e6-96231b3b80d8
* tidy indentationChris Lattner2010-03-141-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98523 91177308-0d34-0410-b5e6-96231b3b80d8
* The same situation that effected ARM effects PPC with regards to placing theBill Wendling2010-03-121-3/+4
| | | | | | | | | | LSDA into the TEXT section. We need to generate non-lazy pointers to it on Mach-O. However, the object the NLP points to may be local to the translation unit. If so, then the NLP needs to have the value of that object specified instead of "0", which the linker interprets as "external". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98325 91177308-0d34-0410-b5e6-96231b3b80d8
* The address of an indirect call must be in R12 on Darwin.Dale Johannesen2010-03-091-0/+10
| | | | | | | | | | Make it so. (This patch is in LowerCall_Darwin, which seems to be used by SVR4 code as well; since that doesn't belong here, I haven't worried about this case.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98077 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead parameter passing.Bill Wendling2010-03-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97536 91177308-0d34-0410-b5e6-96231b3b80d8
* Move TLOF implementations to libCodegen to resolve layering violation.Anton Korobeynikov2010-02-151-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96288 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove an assumption of default arguments. This is in anticipation of aDavid Greene2010-02-151-41/+79
| | | | | | | | change to SelectionDAG build APIs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96236 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename the PerformTailCallOpt variable to GuaranteedTailCallOpt to reflectDan Gohman2010-02-081-7/+7
| | | | | | | its current purpose. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95564 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 95130.Evan Cheng2010-02-021-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95160 91177308-0d34-0410-b5e6-96231b3b80d8
* Pass callsite return type to TargetLowering::LowerCall and use that to check ↵Evan Cheng2010-02-021-1/+1
| | | | | | sibcall eligibility. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95130 91177308-0d34-0410-b5e6-96231b3b80d8
* PPC is not ready for sibcall optimization.Evan Cheng2010-01-291-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94853 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate target hook IsEligibleForTailCallOptimization.Evan Cheng2010-01-271-5/+5
| | | | | | | | | | Target independent isel should always pass along the "tail call" property. Change target hook LowerCall's parameter "isTailCall" into a refernce. If the target decides it's impossible to honor the tail call request, it should set isTailCall to false to make target independent isel happy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94626 91177308-0d34-0410-b5e6-96231b3b80d8
* Add more plumbing. This time in the LowerArguments and "get" functions whichBill Wendling2009-12-221-1/+1
| | | | | | | | | return partial registers. This affected the back-end lowering code some. Also patch up some places I missed before in the "get" functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91880 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for calls through function pointers in the 64-bit PowerPC SVR4 ABI.Tilmann Scheller2009-12-181-3/+105
| | | | | | Patch contributed by Ken Werner of IBM! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91680 91177308-0d34-0410-b5e6-96231b3b80d8
* Make capitalization of names starting "is" more consistent.Dale Johannesen2009-11-241-10/+10
| | | | | | | | No functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89724 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove ISD::DEBUG_LOC and ISD::DBG_LABEL, which are no longer used.Dan Gohman2009-11-231-3/+0
| | | | | | | | | Note that "hasDotLocAndDotFile"-style debug info was already broken; people wanting this functionality should implement it in the AsmPrinter/DwarfWriter code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89711 91177308-0d34-0410-b5e6-96231b3b80d8
* We are not using DBG_STOPPOINT anymore.Devang Patel2009-11-211-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89536 91177308-0d34-0410-b5e6-96231b3b80d8
* Target-independent support for TargetFlags on BlockAddress operands,Dan Gohman2009-11-201-1/+1
| | | | | | | and support for blockaddresses in x86-32 PIC mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89506 91177308-0d34-0410-b5e6-96231b3b80d8
* Adjust isConstantSplat to allow for big-endian targets.Dale Johannesen2009-11-131-2/+2
| | | | | | | | PPC is such a target; make it work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87060 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a bool flag to StackObjects telling whether they reference spillDavid Greene2009-11-121-15/+20
| | | | | | | | | | | | | | slots. The AsmPrinter will use this information to determine whether to print a spill/reload comment. Remove default argument values. It's too easy to pass a wrong argument value when multiple arguments have default values. Make everything explicit to trap bugs early. Update all targets to adhere to the new interfaces.. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87022 91177308-0d34-0410-b5e6-96231b3b80d8
* Add PowerPC codegen for indirect branches.Bob Wilson2009-11-041-0/+33
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86050 91177308-0d34-0410-b5e6-96231b3b80d8
* -Revert parts of 84326 and 84411. Distinquishing between fixed and non-fixedEvan Cheng2009-10-181-2/+2
| | | | | | | | | | | | stack slots and giving them different PseudoSourceValue's did not fix the problem of post-alloc scheduling miscompiling llvm itself. - Apply Dan's conservative workaround by assuming any non fixed stack slots can alias other memory locations. This means a load from spill slot #1 cannot move above a store of spill slot #2. - Enable post-alloc scheduling for x86 at optimization leverl Default and above. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84424 91177308-0d34-0410-b5e6-96231b3b80d8
* Only fixed stack objects and spill slots should be get FixedStack ↵Evan Cheng2009-10-181-2/+2
| | | | | | PseudoSourceValue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84411 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 84315 for now. Re-thinking the patch.Evan Cheng2009-10-171-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84321 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename getFixedStack to getStackObject. The stack objects represented are notEvan Cheng2009-10-171-4/+4
| | | | | | | necessarily fixed. Only those will negative frame indices are "fixed." git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84315 91177308-0d34-0410-b5e6-96231b3b80d8
* LBRX no longer has an explicit SrcValueSDNode operand, so the typeDan Gohman2009-09-271-1/+1
| | | | | | | | operand is now at index 2, rather than 3. This fixes the "Invalid child # of SDNode!" failures on PowerPC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82942 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve MachineMemOperand handling.Dan Gohman2009-09-251-15/+22
| | | | | | | | | | | | | | | | | | | | | | - Allocate MachineMemOperands and MachineMemOperand lists in MachineFunctions. This eliminates MachineInstr's std::list member and allows the data to be created by isel and live for the remainder of codegen, avoiding a lot of copying and unnecessary translation. This also shrinks MemSDNode. - Delete MemOperandSDNode. Introduce MachineSDNode which has dedicated fields for MachineMemOperands. - Change MemSDNode to have a MachineMemOperand member instead of its own fields with the same information. This introduces some redundancy, but it's more consistent with what MachineInstr will eventually want. - Ignore alignment when searching for redundant loads for CSE, but remember the greatest alignment. Target-specific code which previously used MemOperandSDNodes with generic SDNodes now use MemIntrinsicSDNodes, with opcodes in a designated range so that the SelectionDAG framework knows that MachineMemOperand information is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82794 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename getTargetNode to getMachineNode, for consistency with theDan Gohman2009-09-251-3/+3
| | | | | | | | | naming scheme used in SelectionDAG, where there are multiple kinds of "target" nodes, but "machine" nodes are nodes which represent a MachineInstr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82790 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't try to use pre-indexed addressing with sthbrx/stwbrxDan Gohman2009-09-251-1/+2
| | | | | | | | instructions. This fixes a PowerPC bug exposed by some unrelated changes I'm working on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82743 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic ↵Evan Cheng2009-09-191-2/+11
| | | | | | blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82311 91177308-0d34-0410-b5e6-96231b3b80d8
* Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that ↵Evan Cheng2009-09-181-1/+2
| | | | | | | | | sdisel will use to properly complete phi nodes. Not functionality change yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82273 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some not-really-used variables, as warnedDuncan Sands2009-09-061-3/+0
| | | | | | | about by icc (#593, partial). Patch by Erick Tryzelaar. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81115 91177308-0d34-0410-b5e6-96231b3b80d8
* Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson.Sandeep Patel2009-09-021-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80773 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert commit 80428. It completely broke exceptionDuncan Sands2009-08-311-34/+0
| | | | | | | handling on x86-32 linux. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80592 91177308-0d34-0410-b5e6-96231b3b80d8
* - Add target lowering methods to get the preferred format for the FDE and LSDABill Wendling2009-08-291-0/+34
| | | | | | | | | | encodings. - Make some of the values emitted by the FDEs dependent upon the pointer size. This is in line with how GCC does things. And it has the benefit of working for Darwin in 64-bit mode now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80428 91177308-0d34-0410-b5e6-96231b3b80d8
* Change Pass::print to take a raw ostream instead of std::ostream,Chris Lattner2009-08-231-1/+1
| | | | | | | update all code that this affects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79830 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for the PowerPC 64-bit SVR4 ABI.Tilmann Scheller2009-08-151-31/+44
| | | | | | | | | | | | | | | | | | The Link Register is volatile when using the 32-bit SVR4 ABI. Make it possible to use the 64-bit SVR4 ABI. Add non-volatile registers for the 64-bit SVR4 ABI. Make sure r2 is a reserved register when using the 64-bit SVR4 ABI. Update PPCFrameInfo for the 64-bit SVR4 ABI. Add FIXME for 64-bit Darwin PPC. Insert NOP instruction after direct function calls. Emit official procedure descriptors. Create TOC entries for GlobalAddress references. Spill 64-bit non-volatile registers to the correct slots. Only custom lower VAARG when using the 32-bit SVR4 ABI. Use simple VASTART lowering for the 64-bit SVR4 ABI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79091 91177308-0d34-0410-b5e6-96231b3b80d8
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