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path: root/lib/Target/MBlaze/MBlazeISelLowering.cpp
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* Change interface for TargetLowering::LowerCallTo and TargetLowering::LowerCallJustin Holewinski2012-05-251-6/+12
| | | | | | | | | | to pass around a struct instead of a large set of individual values. This cleans up the interface and allows more information to be added to the struct for future targets without requiring changes to each and every target. NV_CONTRIB git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157479 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert more uses of XXXRegisterClass to &XXXRegClass. No functional change ↵Craig Topper2012-04-201-17/+17
| | | | | | since they are equivalent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155188 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unnecessary llvm:: qualificationsCraig Topper2012-03-271-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153500 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert more static tables of registers used by calling convention to ↵Craig Topper2012-03-111-1/+1
| | | | | | uint16_t to reduce space. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152538 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-commit r151623 with fix. Only issue special no-return calls if it's a ↵Evan Cheng2012-02-281-1/+1
| | | | | | direct call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151645 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r151623 "Some ARM implementaions, e.g. A-series, does return stack ↵Daniel Dunbar2012-02-281-1/+1
| | | | | | prediction. ...", it is breaking the Clang build during the Compiler-RT part. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151630 91177308-0d34-0410-b5e6-96231b3b80d8
* Some ARM implementaions, e.g. A-series, does return stack prediction. That is,Evan Cheng2012-02-281-1/+1
| | | | | | | | | | | | | | | | | | the processor keeps a return addresses stack (RAS) which stores the address and the instruction execution state of the instruction after a function-call type branch instruction. Calling a "noreturn" function with normal call instructions (e.g. bl) can corrupt RAS and causes 100% return misprediction so LLVM should use a unconditional branch instead. i.e. mov lr, pc b _foo The "mov lr, pc" is issued in order to get proper backtrace. rdar://8979299 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151623 91177308-0d34-0410-b5e6-96231b3b80d8
* Make all pointers to TargetRegisterClass const since they are all pointers ↵Craig Topper2012-02-221-2/+2
| | | | | | to static data that should not be modified. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151134 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert assert(0) to llvm_unreachableCraig Topper2012-02-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149961 91177308-0d34-0410-b5e6-96231b3b80d8
* More dead code removal (using -Wunreachable-code)David Blaikie2012-01-201-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial CodeGen support for CTTZ/CTLZ where a zero input produces anChandler Carruth2011-12-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | undefined result. This adds new ISD nodes for the new semantics, selecting them when the LLVM intrinsic indicates that the undef behavior is desired. The new nodes expand trivially to the old nodes, so targets don't actually need to do anything to support these new nodes besides indicating that they should be expanded. I've done this for all the operand types that I could figure out for all the targets. Owners of various targets, please review and let me know if any of these are incorrect. Note that the expand behavior is *conservatively correct*, and exactly matches LLVM's current behavior with these operations. Ideally this patch will not change behavior in any way. For example the regtest suite finds the exact same instruction sequences coming out of the code generator. That's why there are no new tests here -- all of this is being exercised by the existing test suite. Thanks to Duncan Sands for reviewing the various bits of this patch and helping me get the wrinkles ironed out with expanding for each target. Also thanks to Chris for clarifying through all the discussions that this is indeed the approach he was looking for. That said, there are likely still rough spots. Further review much appreciated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146466 91177308-0d34-0410-b5e6-96231b3b80d8
* Added invariant field to the DAG.getLoad method and changed all calls.Pete Cooper2011-11-081-1/+1
| | | | | | | When this field is true it means that the load is from constant (runt-time or compile-time) and so can be hoisted from loops or moved around other memory accesses git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144100 91177308-0d34-0410-b5e6-96231b3b80d8
* Add codegen support for vector select (in the IR this means a selectDuncan Sands2011-09-061-1/+2
| | | | | | | | | | | | | with a vector condition); such selects become VSELECT codegen nodes. This patch also removes VSETCC codegen nodes, unifying them with SETCC nodes (codegen was actually often using SETCC for vector SETCC already). This ensures that various DAG combiner optimizations kick in for vector comparisons. Passes dragonegg bootstrap with no testsuite regressions (nightly testsuite as well as "make check-all"). Patch mostly by Nadav Rotem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139159 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactoring fail.Evan Cheng2011-07-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135986 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor MBlaze target to separate MC routines from Target routines.Evan Cheng2011-07-251-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135953 91177308-0d34-0410-b5e6-96231b3b80d8
* land David Blaikie's patch to de-constify Type, with a few tweaks.Chris Lattner2011-07-181-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135375 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an intrinsic and codegen support for fused multiply-accumulate. The intentCameron Zwarich2011-07-081-0/+1
| | | | | | is to use this for architectures that have a native FMA instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134742 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove getRegClassForInlineAsmConstraint from MBlaze. Add a TODO commentEric Christopher2011-06-291-29/+7
| | | | | | | | | for the port. Part of rdar://9643582 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134085 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a parameter to CCState so that it can access the MachineFunction.Eric Christopher2011-06-081-11/+11
| | | | | | | | | No functional change. Part of PR6965 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132763 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the logic for determining function alignment more explicit. No ↵Eli Friedman2011-05-061-5/+2
| | | | | | functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131012 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove some hard coded CR-LFs. Some of these were the entire files, one ofChandler Carruth2011-04-251-1/+1
| | | | | | | | these was just one line of a file. Explicitly set the eol-style property on the files to try and ensure this fix stays. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130125 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a ton of comment typos found by codespell. Patch byChris Lattner2011-04-151-3/+3
| | | | | | | | Luis Felipe Strano Moraes! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r124611 - "Keep track of incoming argument's location while emitting ↵Devang Patel2011-02-211-2/+2
| | | | | | | | | | | | | LiveIns." In other words, do not keep track of argument's location. The debugger (gdb) is not prepared to see line table entries for arguments. For the debugger, "second" line table entry marks beginning of function body. This requires some coordination with debugger to get this working. - The debugger needs to be aware of prolog_end attribute attached with line table entries. - The compiler needs to accurately mark prolog_end in line table entries (at -O0 and at -O1+) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126155 91177308-0d34-0410-b5e6-96231b3b80d8
* Keep track of incoming argument's location while emitting LiveIns.Devang Patel2011-01-311-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124611 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs ↵Anton Korobeynikov2011-01-101-1/+1
| | | | | | and fixes here and there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for some of the LLVM atomic operations to the MBlaze backend.Wesley Peck2010-12-221-156/+336
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122384 91177308-0d34-0410-b5e6-96231b3b80d8
* rename MVT::Flag to MVT::Glue. "Flag" is a terrible name forChris Lattner2010-12-211-1/+1
| | | | | | | | | something that just glues two nodes together, even if it is sometimes used for flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
* Lower the MBlaze target specific calling conventions for "interrupt_handler"Wesley Peck2010-12-151-6/+11
| | | | | | | | and "save_volatiles" correctly. This completes the custom calling convention functionality changes for the MBlaze backend that were started in 121888. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121891 91177308-0d34-0410-b5e6-96231b3b80d8
* The ADD and ADDK (and all variants) instructions where flip-flopped in the ↵Wesley Peck2010-12-121-2/+2
| | | | | | MBlaze backend. This bug fix makes 64-bit math work on the MBlaze backend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121649 91177308-0d34-0410-b5e6-96231b3b80d8
* 1. Change MBlaze indirect branches to use absolute branch BRALD instead of ↵Wesley Peck2010-12-121-0/+1
| | | | | | | | | | pc relative branch BRLD. 2. Make sure that the MBlaze stack is aligned to 4-byte boundaries. 3. Determine frame indexes that should be placed in the callers stack frame, as per the MBlaze ABI, and place them in the correct locations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121639 91177308-0d34-0410-b5e6-96231b3b80d8
* Reworking the stack layout generated by the MBlaze backend.Wesley Peck2010-12-091-53/+45
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121355 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding bug fix that was suppose to be part of 121044.Wesley Peck2010-12-061-6/+6
| | | | | | | patch contributed by Jack Whitham! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121049 91177308-0d34-0410-b5e6-96231b3b80d8
* Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.Wesley Peck2010-11-231-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119990 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding working version of assembly parser for the MBlaze backendWesley Peck2010-11-081-11/+11
| | | | | | | Major cleanup of whitespace and formatting issues in MBlaze backend git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118434 91177308-0d34-0410-b5e6-96231b3b80d8
* In the calling convention logic, ValVT is always a legal type,Duncan Sands2010-11-041-3/+3
| | | | | | | | and as such can be represented by an MVT - the more complicated EVT is not needed. Use MVT for ValVT everywhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118245 91177308-0d34-0410-b5e6-96231b3b80d8
* Inside the calling convention logic LocVT is always a simpleDuncan Sands2010-11-031-1/+1
| | | | | | | | | | | value type, so there is no point in passing it around using an EVT. Use the simpler MVT everywhere. Rather than trying to propagate this information maximally in all the code that using the calling convention stuff, I chose to do a mainly low impact change instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118167 91177308-0d34-0410-b5e6-96231b3b80d8
* Inline asm multiple alternative constraints development phase 2 - improved ↵John Thompson2010-10-291-0/+31
| | | | | | basic logic, added initial platform support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117667 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding initial AsmParser implementation for the MBlaze backend. It isWesley Peck2010-10-211-29/+19
| | | | | | | | | | | | | | | | | | | | | | | | | mostly based on the ARM AsmParser at this time and is not particularly functional. Changed the MBlaze data layout from: "E-p:32:32-i8:8:8-i16:16:16-i64:32:32-f64:32:32-v64:32:32-v128:32:32-n32" to: "E-p:32:32:32-i8:8:8-i16:16:16" because the MicroBlaze doesn't have i64, f64, v64, or v128 data types. Cleaned up the MBlaze source code: 1. The floating point register class has been removed. The MicroBlaze does not have floating point registers. Floating point values are simply stored in integer registers. 2. Renaming the CPURegs register class to GPR to reflect the standard naming. 3. Removing a lot of stale code from AsmPrinter after the conversion to InstPrinter. 4. Simplified sign extended loads by marking them as expanded in ISelLowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117054 91177308-0d34-0410-b5e6-96231b3b80d8
* Recommit 116986 with capitalization typo fixed.Wesley Peck2010-10-211-7/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116993 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverting the commit 116986. It was breaking the build on llvm-x86_64-linux ↵Wesley Peck2010-10-211-4/+7
| | | | | | | | | | though it compiles on OS X. I'll ensure that it builds on a linux machine before committing again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116991 91177308-0d34-0410-b5e6-96231b3b80d8
* Major update of the MicroBlaze backend. The new features are:Wesley Peck2010-10-211-7/+4
| | | | | | | | | | | | | | | | | | | | | 1. A delay slot filler that searches for valid instructions to fill the delay slot with. Previously NOPs would always be inserted into delay slots. 2. Support for MC based instruction printer added. 3. Support for MC based machine code generation and ELF file generation. ELF file generation does not yet completely work as much of the ELF support infrastructure is still x86/x86-64 specific. 4. General clean up of the MBlaze backend code. Much of the tablegen code has been cleanup and simplified. Bug Fixes: 1. Removed duplicate periods from subtarget feature descriptions. 2. Many of the instructions had bad machine code information in the tablegen files. Much of this has been fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116986 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate some uses of the getStore overload.Chris Lattner2010-09-211-3/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114453 91177308-0d34-0410-b5e6-96231b3b80d8
* convert the targets off the non-MachinePointerInfo of getLoad.Chris Lattner2010-09-211-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114410 91177308-0d34-0410-b5e6-96231b3b80d8
* Split the SDValue out of OutputArg so that SelectionDAG-independentDan Gohman2010-07-071-2/+4
| | | | | | | code can do calling-convention queries. This obviates OutputArgReg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107786 91177308-0d34-0410-b5e6-96231b3b80d8
* Propagate debug loc.Devang Patel2010-07-061-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107710 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r107655 with fixes; insert the pseudo instruction intoDan Gohman2010-07-061-37/+33
| | | | | | | | the block before calling the expansion hook. And don't put EFLAGS in a mbb's live-in list twice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107691 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r107655.Dan Gohman2010-07-061-33/+37
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107668 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bunch of custom-inserter functions to handle the case whereDan Gohman2010-07-061-37/+33
| | | | | | | the pseudo instruction is not at the end of the block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107655 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove isSS argument from CreateFixedObject. Fixed objects cannot be spill ↵Evan Cheng2010-07-031-3/+3
| | | | | | slots so it's always false. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107550 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove initialized but otherwise unused variables.Duncan Sands2010-06-291-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107127 91177308-0d34-0410-b5e6-96231b3b80d8
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