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2012-03-07misched prep: Remove LLVM_LIBRARY_VISIBILITY from ScheduleDAGInstrs.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152260 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched prep: Comment the ScheduleDAGInstrs interface.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152259 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched prep: Cleanup ScheduleDAGInstrs interface.Andrew Trick
ScheduleDAGInstrs will be the main interface for MI-level schedulers. Make sure it's readable: one page of protected fields, one page of public methids. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152258 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched prep: remove extra "protected"Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152257 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched prep: rename InsertPos to End.Andrew Trick
ScheduleDAGInstrs knows nothing about how instructions will be moved or inserted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152256 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched preparation: rename core scheduler methods for consistency.Andrew Trick
We had half the API with one convention, half with another. Now was a good time to clean it up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152255 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Try to clarify this comment some.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152221 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Remove another outbreak of customized (and completely broken) hashing.Chandler Carruth
This one is particularly annoying because the hashing algorithm is highly specialized, with a strange "equivalence" definition that subsets the fields involved. Still, this looks at the exact same set of data as the old code, but without bitwise or-ing over parts of it and other mixing badness. No functionality changed here. I've left a substantial fixme about the fact that there is a cleaner and more principled way to do this, but it requires making the equality definition actual stable for particular types... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152218 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Where the BranchFolding pass removes a branch then adds another better branch,Bill Wendling
the DebugLoc information can be maintained throughout by grabbing the DebugLoc before the RemoveBranch and then passing the result to the InsertBranch. Patch by Andrew Stanford-Jason! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152212 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Fix cmakeAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152210 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07commentAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152209 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched preparation: clarify ScheduleDAG and ScheduleDAGInstrs roles.Andrew Trick
ScheduleDAG is responsible for the DAG: SUnits and SDeps. It provides target hooks for latency computation. ScheduleDAGInstrs extends ScheduleDAG and defines the current scheduling region in terms of MachineInstr iterators. It has access to the target's scheduling itinerary data. ScheduleDAGInstrs provides the logic for building the ScheduleDAG for the sequence of MachineInstrs in the current region. Target's can implement highly custom schedulers by extending this class. ScheduleDAGPostRATDList provides the driver and diagnostics for current postRA scheduling. It maintains a current Sequence of scheduled machine instructions and logic for splicing them into the block. During scheduling, it uses the ScheduleHazardRecognizer provided by the target. Specific changes: - Removed driver code from ScheduleDAG. clearDAG is the only interface needed. - Added enterRegion/exitRegion hooks to ScheduleDAGInstrs to delimit the scope of each scheduling region and associated DAG. They should be used to setup and cleanup any region-specific state in addition to the DAG itself. This is necessary because we reuse the same ScheduleDAG object for the entire function. The target may extend these hooks to do things at regions boundaries, like bundle terminators. The hooks are called even if we decide not to schedule the region. So all instructions in a block are "covered" by these calls. - Added ScheduleDAGInstrs::begin()/end() public API. - Moved Sequence into the driver layer, which is specific to the scheduling algorithm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152208 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07ScheduleDAGInstrs commentsAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152207 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched preparation: modularize schedule emission.Andrew Trick
ScheduleDAG has nothing to do with how the instructions are scheduled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152206 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched preparation: modularize schedule printing.Andrew Trick
ScheduleDAG will not refer to the scheduled instruction sequence. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152205 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched preparation: modularize schedule verification.Andrew Trick
ScheduleDAG will not refer to the scheduled instruction sequence. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152204 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07whitespaceAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152203 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Added -view-misched=dags options.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152178 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Cleanup in preparation for misched: Move DAG visualization logic.Andrew Trick
Soon, ScheduleDAG will not refer to the BB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152177 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Added MachineBasicBlock::getFullName() to standardize/factor codegen ↵Andrew Trick
diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152176 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07whitespaceAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152175 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Cleanup: DAG building is specific to either SD or MI scheduling. Not part of ↵Andrew Trick
the target interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152174 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched commentsAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152173 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07misched: Use the StartBlock/FinishBlock hooksAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152172 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-07Add the DW_AT_APPLE_runtime_class attribute to forward declarationsEric Christopher
as well as completely defined classes. This fixes rdar://10956070 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152171 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-06Extend r148086 to check for [r +/- reg] address mode. This fixes queens ↵Evan Cheng
performance regression (due to increased register pressure from overly aggressive pre-inc formation). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152162 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-06Hoist common code out of if statement.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152153 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-06Avoid finalizeBundles infinite looping.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152089 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-06Make it possible for a target to mark FSUB as Expand. This requires ↵Owen Anderson
providing a default expansion (FADD+FNEG), and teaching DAGCombine not to form FSUBs post-legalize if they are not legal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152079 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-05Make MCRegisterInfo available to the the MCInstPrinter.Jim Grosbach
Used to allow context sensitive printing of super-register or sub-register references. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152043 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-05Fix warnings about adding a bool to a string.Bill Wendling
Patch by Sean Silva! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152042 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-05Convert more GenRegisterInfo tables from unsigned to uint16_t to reduce ↵Craig Topper
static data size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152016 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-04Stop fixing bad machine code in LiveIntervalAnalysis.Jakob Stoklund Olesen
The first def of a virtual register cannot also read the register. Assert on such bad machine code instead of trying to fix it. TwoAddressInstructionPass should never create code like that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152010 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-04Stop adding <imp-def> operands when coalescing sub-registers.Jakob Stoklund Olesen
We are already setting <undef> flags, and that is good enough. The <imp-def> operands don't mean anything any more. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152009 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-04Use uint16_t to store register overlaps to reduce static data.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152001 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-04Use uint16_t instead of unsigned to store registers in reg classes. Reduces ↵Craig Topper
static data size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151998 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-04Use uint16_t to store registers in callee saved register tables to reduce ↵Craig Topper
size of static data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151996 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-02Grammar-o in function name.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151875 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-02Grammar.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151874 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-02If the linkage name doesn't exist we're supposed to emit a referenceEric Christopher
to the string table for the function name, not the function name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151873 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-02Revert "Reorder the sections being output to reduce the number of assembler"Eric Christopher
The inline table needs to be constructed ahead of time so that it doesn't try to create new strings while we're emitting everything. This reverts commit a8ff9bccb399183cdd5f1c3cec2bda763664b4b0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151864 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Reorder the sections being output to reduce the number of assemblerEric Christopher
fixups that are being used to determine section offsets. Reduces the total number of fixups by 50% for a non-trivial testcase. Part of rdar://10413936 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151852 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Minimal changes for LLVM to compile under VS11.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151849 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Fix a codegen fault in which log2 or exp2 could be dead-code eliminated even ↵James Molloy
though they could have sideeffects. Only allow log2/exp2 to be converted to an intrinsic if they are declared "readnone". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151807 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Make InlineSpiller bundle-aware.Jakob Stoklund Olesen
Simply treat bundles as instructions. Spill code is inserted between bundles, never inside a bundle. Rewrite all operands in a bundle at once. Don't attempt and memory operand folding inside bundles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151787 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Move getBundleStart() into MachineInstrBundle.h.Jakob Stoklund Olesen
This allows the function to be inlined, and makes it suitable for use in getInstructionIndex(). Also provide a const version. C++ is great for touch typing practice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151782 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Don't redundantly copy implicit operands when rematerializing.Lang Hames
While we're at it - don't copy vreg implicit operands while rematerializing. This fixes PR12138. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151779 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29LegalizeIntegerTypes: Reorder operations in the "big shift by small amount" ↵Benjamin Kramer
optimization, making the lives of later passes easier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151722 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29Add an analyzeVirtReg() function.Jakob Stoklund Olesen
This function does more or less the same as MI::readsWritesVirtualRegister(), but it supports bundles as well. It also determines if any constraint requires reading and writing operands to use the same register. Most clients want to know. Use the more modern MO.readsReg() instead of trying to sort out undefs and partial redefines. Stop supporting the extra full <imp-def> operand as an alternative to <def,undef> sub-register defines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151690 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29Move the operand iterator into MachineInstrBundle.h where it belongs.Jakob Stoklund Olesen
Extract a base class and provide four specific sub-classes for iterating over const/non-const bundles/instructions. This eliminates the mystery bool constructor argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151684 91177308-0d34-0410-b5e6-96231b3b80d8
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