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* Add MachineBlockFrequency analysis.Jakub Staszak2011-07-161-0/+53
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135352 91177308-0d34-0410-b5e6-96231b3b80d8
* Extract parts of RAGreedy::splitAroundRegion as SplitKit methods.Jakob Stoklund Olesen2011-07-151-0/+3
| | | | | | | | | | | This gets rid of some of the gory splitting details in RAGreedy and makes them available to future SplitKit clients. Slightly generalize the functionality to support multi-way splitting. Specifically, SplitEditor::splitLiveThroughBlock() supports switching between different register intervals in a block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135307 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix up TargetLoweringObjectFile ctors to properly initialize fields.Evan Cheng2011-07-131-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135068 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert InsertValueInst and ExtractValueInst APIs to use ArrayRef.Jay Foad2011-07-131-0/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135040 91177308-0d34-0410-b5e6-96231b3b80d8
* - Make BranchProbability constructor public.Jakub Staszak2011-07-101-0/+1
| | | | | | | - Add getCompl() method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134857 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an intrinsic and codegen support for fused multiply-accumulate. The intentCameron Zwarich2011-07-082-1/+5
| | | | | | 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
* Be more aggressive about following hints.Jakob Stoklund Olesen2011-07-081-0/+8
| | | | | | | | | | | | | | | | | | | | RAGreedy::tryAssign will now evict interference from the preferred register even when another register is free. To support this, add the EvictionCost struct that counts how many hints are broken by an eviction. We don't want to break one hint just to satisfy another. Rename canEvict to shouldEvict, and add the first bit of eviction policy that doesn't depend on spill weights: Always make room in the preferred register as long as the evictees can be split and aren't already assigned to their preferred register. Also make the CSR avoidance more accurate. When looking for a cheaper register it is OK to use a new volatile register. Only CSR aliases that have never been used before should be avoided. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134735 91177308-0d34-0410-b5e6-96231b3b80d8
* Add functions 'hasPredecessor' and 'hasPredecessorHelper' to SDNode. TheLang Hames2011-07-071-4/+23
| | | | | | | | | | | | | | | | | | hasPredecessorHelper function allows predecessors to be cached to speed up repeated invocations. This fixes PR10186. X.isPredecessorOf(Y) now just calls Y.hasPredecessor(X) Y.hasPredecessor(X) calls Y.hasPredecessorHelper(X, Visited, Worklist) with empty Visited and Worklist sets (i.e. no caching over invocations). Y.hasPredecessorHelper(X, Visited, Worklist) caches search state in Visited and Worklist to speed up repeated calls. The Visited set is searched for X before going to the worklist to further search the DAG if necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134592 91177308-0d34-0410-b5e6-96231b3b80d8
* Include a source location when complaining about bad inline assembly.Jakob Stoklund Olesen2011-07-021-0/+10
| | | | | | | | | | | | | | | | Add a MI->emitError() method that the backend can use to report errors related to inline assembly. Call it from X86FloatingPoint.cpp when the constraints are wrong. This enables proper clang diagnostics from the backend: $ clang -c pr30848.c pr30848.c:5:12: error: Inline asm output regs must be last on the x87 stack __asm__ ("" : "=u" (d)); /* { dg-error "output regs" } */ ^ 1 error generated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134307 91177308-0d34-0410-b5e6-96231b3b80d8
* Create a isFullCopy predicate.Rafael Espindola2011-06-301-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134189 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r133953 for now.Devang Patel2011-06-291-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134116 91177308-0d34-0410-b5e6-96231b3b80d8
* - Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo andEvan Cheng2011-06-285-35/+33
| | | | | | | | | sink them into MC layer. - Added MCInstrInfo, which captures the tablegen generated static data. Chang TargetInstrInfo so it's based off MCInstrInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134021 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove RegClass2VRegMap from MachineRegisterInfo.Evan Cheng2011-06-271-12/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133967 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the experimental (and unused) pre-ra splitting pass. Greedy regalloc ↵Evan Cheng2011-06-271-2/+0
| | | | | | can split live ranges. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133962 91177308-0d34-0410-b5e6-96231b3b80d8
* During bottom up fast-isel, instructions emitted to materalize registers are ↵Devang Patel2011-06-271-0/+4
| | | | | | at top of basic block and do not have debug location. This may misguide debugger while entering the basic block and sometimes debugger provides semi useful view of current location to developer by picking up previous known location as current location. Assign a sensible location to the first instruction in a basic block, if it does not have one location derived from source file, so that debugger can provide meaningful user experience to developers in edge cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133953 91177308-0d34-0410-b5e6-96231b3b80d8
* There is only one register coalescer. Merge it into the base class andRafael Espindola2011-06-262-9/+2
| | | | | | remove the analysis group. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133899 91177308-0d34-0410-b5e6-96231b3b80d8
* Move RegisterCoalescer.h to lib/CodeGen.Rafael Espindola2011-06-261-244/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133895 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle debug info for i128 constants.Devang Patel2011-06-242-0/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133821 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a FIXME by making GlobalVariable::getInitializer() return aJay Foad2011-06-191-2/+2
| | | | | | const Constant *. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133400 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't allocate empty read-only SmallVectors during SelectionDAG deallocation.Benjamin Kramer2011-06-181-3/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133348 91177308-0d34-0410-b5e6-96231b3b80d8
* Lower multiply with overflow checking to __mulo<mode>Eric Christopher2011-06-171-1/+4
| | | | | | | | | | calls if we haven't been able to lower them any other way. Fixes rdar://9090077 and rdar://9210061 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133288 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a hook for PBQP clients to run a custom pre-alloc pass to run prior to ↵Lang Hames2011-06-171-1/+2
| | | | | | PBQP allocation. Patch by Arnaud Allard de Grandmaison. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133249 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce MachineBranchProbabilityInfo class, which has similar API toJakub Staszak2011-06-163-8/+116
| | | | | | | | | BranchProbabilityInfo (expect setEdgeWeight which is not available here). Branch Weights are kept in MachineBasicBlocks. To turn off this analysis set -use-mbpi=false. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133184 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix formatting.Owen Anderson2011-06-162-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133164 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new MVT::untyped. This will be used in future work for modelling ISA ↵Owen Anderson2011-06-152-1/+6
| | | | | | features like register pairs and lists with "interesting" constraints (such as ARM NEON contiguous register lists or even-odd paired registers). We need to be able to generate these instructions (often from intrinsics), but don't want to have to assign a legal type to them. Instead, we'll use an "untyped" edge to bypass the type-checking and simply ensure that the register classes match. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133106 91177308-0d34-0410-b5e6-96231b3b80d8
* Added -stress-sched flag in the Asserts build.Andrew Trick2011-06-151-0/+6
| | | | | | | Added a test case for handling physreg aliases during pre-RA-sched. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133063 91177308-0d34-0410-b5e6-96231b3b80d8
* Add one more argument to the prefetch intrinsic to indicate whether it's a dataBruno Cardoso Lopes2011-06-141-1/+2
| | | | | | | or instruction cache access. Update the targets to match it and also teach autoupgrade. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132976 91177308-0d34-0410-b5e6-96231b3b80d8
* Reformatting. Moving class definitions to more natural places. No ↵Bill Wendling2011-06-111-16/+15
| | | | | | functionalogical changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132876 91177308-0d34-0410-b5e6-96231b3b80d8
* Provide an ARMCCState subclass of CCState so that ARM clients will always setCameron Zwarich2011-06-101-1/+4
| | | | | | CallOrPrologue correctly and eliminate the existing setter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132856 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename the ParmContext enum values to make a bit more sense and add a smallCameron Zwarich2011-06-101-1/+4
| | | | | | comment on their meaning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132854 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove tabs.Cameron Zwarich2011-06-101-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132853 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a parameter to CCState so that it can access the MachineFunction.Eric Christopher2011-06-081-1/+5
| | | | | | | | | No functional change. Part of PR6965 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132763 91177308-0d34-0410-b5e6-96231b3b80d8
* Switched to DenseMap for allowed sets in PBQP. Reduces total LLC time by 15% ↵Lang Hames2011-06-071-1/+1
| | | | | | on CINT2006 for x86-32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132707 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code.Devang Patel2011-06-021-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132488 91177308-0d34-0410-b5e6-96231b3b80d8
* Typos.Chad Rosier2011-06-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132437 91177308-0d34-0410-b5e6-96231b3b80d8
* When generating code for Win64 EH, emit StartProc and EndProc directives.Charles Davis2011-05-281-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132250 91177308-0d34-0410-b5e6-96231b3b80d8
* Make size computation less brittle.Rafael Espindola2011-05-271-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132222 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the suffix to the Win64 EH data sections' names if given. Add a test forCharles Davis2011-05-271-6/+2
| | | | | | | this. XFAIL'd, because the COFF AsmParser can't handle .section yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132220 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a parameter to the Win64 EH section getters to get a section with aCharles Davis2011-05-271-6/+12
| | | | | | | | | | | suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but I'll get to it in the next patch. Fix up all callers of the affected functions. Make them pass said suffix to the function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132205 91177308-0d34-0410-b5e6-96231b3b80d8
* Comment cleanup.Eric Christopher2011-05-261-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132162 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code.Devang Patel2011-05-241-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131974 91177308-0d34-0410-b5e6-96231b3b80d8
* Add .pdata and .xdata sections to the COFF TLOF implementation.Charles Davis2011-05-201-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131763 91177308-0d34-0410-b5e6-96231b3b80d8
* Frame indices are signed. Update MachineOperand methods accordingly.Jim Grosbach2011-05-172-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131475 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach LiveInterval::isZeroLength about null SlotIndexes.Jakob Stoklund Olesen2011-05-161-2/+3
| | | | | | | | | | | | When instructions are deleted, they leave tombstone SlotIndex entries. The isZeroLength method should ignore these null indexes. This causes RABasic to sometimes spill a callee-saved register in the abi-isel.ll test, so don't run that test with -regalloc=basic. Prioritizing register allocation according to spill weight can cause more registers to be used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131436 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete unused variables.Dan Gohman2011-05-161-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131430 91177308-0d34-0410-b5e6-96231b3b80d8
* Make fast-isel work correctly s/uadd.with.overflow intrinsics.Eli Friedman2011-05-161-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131420 91177308-0d34-0410-b5e6-96231b3b80d8
* Basic fast-isel of extractvalue. Not too helpful on its own, given the IR ↵Eli Friedman2011-05-161-0/+2
| | | | | | clang generates for cases like this, but it should become more useful soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131417 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-commit 131172 with fix. MachineInstr identity checks should check deadEvan Cheng2011-05-121-0/+1
| | | | | | | | | | markers. In some cases a register def is dead on one path, but not on another. This is passing Clang self-hosting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131214 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix comment.Bill Wendling2011-05-111-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131173 91177308-0d34-0410-b5e6-96231b3b80d8
* Use .cfi_sections to put the unwind info in .debug_frame when possible. WithRafael Espindola2011-05-101-1/+6
| | | | | | | | | this clang will use .debug_frame in, for example, clang -g -c -m32 test.c This matches gcc's behaviour. It looks like .debug_frame is a bit bigger than .eh_frame, but has the big advantage of not being allocated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131140 91177308-0d34-0410-b5e6-96231b3b80d8
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