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2012-02-09Erase dead copies that are clobbered by a call.Jakob Stoklund Olesen
This does make a difference, at least when using RABasic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150118 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Never delete instructions that define reserved registers.Jakob Stoklund Olesen
I think this was already the intention, but DeadMachineInstructionElim was accidentally tracking the liveness of reserved registers. Now, instructions with reserved defs are never deleted. This prevents the call stack adjustment instructions from getting deleted when enabling register masks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150116 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Handle register masks in MachineCopyPropagation.Jakob Stoklund Olesen
For simplicity, treat calls with register masks as basic block boundaries. This means we can't copy propagate callee-saved registers across calls, but I don't think that is a big deal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150108 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Codegen pass definition cleanup. No functionality.Andrew Trick
Moving toward a uniform style of pass definition to allow easier target configuration. Globally declare Pass ID. Globally declare pass initializer. Use INITIALIZE_PASS consistently. Add a call to the initializer from CodeGen.cpp. Remove redundant "createPass" functions and "getPassName" methods. While cleaning up declarations, cleaned up comments (sorry for large diff). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150100 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Move pass configuration out of pass constructors: MachineLICM.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150099 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08whitespaceAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150098 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Move pass configuration out of pass constructors: StackSlotColoring.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150097 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Move pass configuration out of pass constructors: PostRAScheduler.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150096 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Move pass configuration out of pass constructors: BranchFolderPassAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150095 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08whitespaceAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150094 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Added TargetPassConfig::setOptAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150093 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Added Pass::createPass(ID) to handle pass configuration by IDAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150092 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Move pass configuration out of pass constructors: TailDuplicate::PreRegAllocAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150091 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Add Register mask support to RABasic.Jakob Stoklund Olesen
When a virtual register is live across a call, limit the search space to call-preserved registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150081 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Keep track of register masks in LiveIntervalAnalysis.Jakob Stoklund Olesen
Build an ordered vector of register mask operands (i.e., calls) when computing live intervals. Provide a checkRegMaskInterference() function that computes a bit mask of usable registers for a live range. This is a quick way of determining of a live range crosses any calls, and restricting it to the callee saved registers if it does. Previously, we had to discover call clobbers for each candidate register independently. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150077 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08Added MachineInstr::isBundled() to check if an instruction is part of a bundle.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150044 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08misched: bug in debug output.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150043 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08stale commentAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150041 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Remove tabs.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150012 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Expose TargetPassConfig to PEI PassAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149927 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Add TargetPassConfig to the PassManager for use inside passesAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149926 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Don't explicitly renumber slot indices.Jakob Stoklund Olesen
We have automatic local renumbering now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149920 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Make sure a reserved register has a live interval before merging.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149910 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06[unwind removal] Remove all of the code for the dead 'unwind' instruction. ThereBill Wendling
were no 'unwind' instructions being generated before this, so this is in effect a no-op. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149906 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06[unwind removal] We no longer have 'unwind' instructions being generated, soBill Wendling
remove the code that handles them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149901 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06DebugInfo: Provide a new hook to encode relationship between a property and ↵Devang Patel
an ivar. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149874 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06Move some llvm_unreachable's from r149849 out of switch statements to ↵Craig Topper
satisfy -Wcovered-switch-default git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149860 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Persuade GCC that there is nothing worth warning about here (there isn't).Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149834 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Add additional documentation to the extract-and-trunc dagcombine optimization.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149823 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Convert assert(0) to llvm_unreachableCraig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149816 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05reapply the patches reverted in r149470 that reenable ConstantDataArray,Chris Lattner
but with a critical fix to the SelectionDAG code that optimizes copies from strings into immediate stores: the previous code was stopping reading string data at the first nul. Address this by adding a new argument to llvm::getConstantStringInfo, preserving the behavior before the patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149800 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Drop the REDEF_BY_EC VNInfo flag.Jakob Stoklund Olesen
A live range that has an early clobber tied redef now looks like a normal tied redef, except the early clobber def uses the early clobber slot. This is enough to handle any strange interference problems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149769 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Correctly terminate a physreg redefined by an early clobber.Jakob Stoklund Olesen
I don't have a test that fails because of this, but a test case like CodeGen/X86/2009-12-01-EarlyClobberBug.ll exposes the problem. EAX is redefined by a tied early clobber operand on inline asm, and the live range should look like this: %EAX,inf = [48r,64e:0)[64e,80r:1) 0@48r 1@64e Previously, the two values got merged: %EAX,inf = [48r,80r:0) 0@48r With this bug fixed, the REDEF_BY_EC VNInfo flag is no longer needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149768 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Fix a leak!Nick Lewycky
Andy, in a previous commit you made this into an ImmutablePass so that you could add it to the PassManager, then in the next commit you left it a Pass but removed the code that added it to the PM. If you do add it to the PM then the PM should take care of deleting it, but it's also true that nothing in codegen needs this object to exist after it's done its work here. It's not clear to me which design you want; this should likely either cease to be a Pass or be added to the PM where other parts of CodeGen will request it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149765 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Don't store COPY pointers in VNInfo.Jakob Stoklund Olesen
If a value is defined by a COPY, that instuction can easily and cheaply be found by getInstructionFromIndex(VNI->def). This reduces the size of VNInfo from 24 to 16 bytes, and improves llc compile time by 3%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149763 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04TargetPassConfig: confine the MC configuration to TargetMachine.Andrew Trick
Passes prior to instructon selection are now split into separate configurable stages. Header dependencies are simplified. The bulk of this diff is simply removal of the silly DisableVerify flags. Sorry for the target header churn. Attempting to stabilize them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149754 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Move TargetPassConfig implementation into Passes.cppAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149753 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Make TargetPassConfig an ImmutablePass so CodeGenPasses can query optionsAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149752 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Emit new property tag.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149737 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04[fast-isel] HandlePHINodesInSuccessorBlocks() can promite i8 and i16 types too.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149730 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03Trim headers.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149722 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03Delete some dead code.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149717 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03Handle register mask operands in setPhysRegsDeadExcept().Jakob Stoklund Olesen
Calls that use register mask operands don't have implicit defs for returned values. The register mask operand handles the call clobber, but it always behaves like a set of dead defs. Add live implicit defs for any implicitly defined physregs that are actually used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149715 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03ArrayRef'ize MI::setPhysRegsDeadExcept().Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149709 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03Handle all live physreg defs in the same place.Jakob Stoklund Olesen
SelectionDAG has 4 different ways of passing physreg defs to users. Collect all of the uses at the same time, and pass all of them to MI->setPhysRegsDeadExcept() to mark the remaining defs dead. The setPhysRegsDeadExcept() function will soon add the required implicit-defs to instructions with register mask operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149708 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03Initialize all common codegen passes before configuration so we can use ↵Andrew Trick
their PassIDs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149705 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03The type-legalizer often scalarizes code. One of the common patterns is ↵Nadav Rotem
extract-and-truncate. In this patch we optimize this pattern and convert the sequence into extract op of a narrow type. This allows the BUILD_VECTOR dag optimizations to construct efficient shuffle operations in many cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149692 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03Added TargetPassConfig. The first little step toward configuring codegen passes.Andrew Trick
Allows command line overrides to be centralized in LLVMTargetMachine.cpp. LLVMTargetMachine can intercept common passes and give precedence to command line overrides. Allows adding "internal" target configuration options without touching TargetOptions. Encapsulates the PassManager. Provides a good point to initialize all CodeGen passes so that Pass ID's can be used in APIs. Allows modifying the target configuration hooks without rebuilding the world. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149672 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03whitespaceAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149671 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-03Add a new MachineJumpTableInfo entry type, EK_GPRel64BlockAddress, which isAkira Hatanaka
needed to emit a 64-bit gp-relative relocation entry. Make changes necessary for emitting jump tables which have entries with directive .gpdword. This patch does not implement the parts needed for direct object emission or JIT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149668 91177308-0d34-0410-b5e6-96231b3b80d8
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