search for: constantpoolsdnod

...es alignment 0 > Alignment = getMVTAlignment(VT); > > Inside getMVTAlignment, the ABI alignment is retrieved for the given VT. > > It appears that constants are already aligned to the preferred > alignment, given this code in ScheduleDAG::AddOperand(): > > } else if (ConstantPoolSDNode *CP = > dyn_cast<ConstantPoolSDNode>(Op)) { > [...] > Align = TM.getTargetData()->getPreferredTypeAlignmentShift(Type); > > (note there is a curious FIXME there about alignment of vector types > -- I think this may be a relic since getPreferredTypeAlignmentShi...

...alignment parameters to the getLoad/getExtLoad calls. > > If you move the handling of Alignment==0 out of ScheduleDAGEmit.cpp > and into SelectionDAG::getConstantPool, you can then have legalize > read the alignment from the node, instead of making its own > decision: > cast<ConstantPoolSDNode>(CPIdx)->getAlignment() > > I followed your suggestion but I've come across a bit of a snag. If you get the alignment in LegalizeDAG using: SDValue CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); unsigned Alignment = cast<ConstantPoolSDNode>(CPIdx)->getAlignme...

Mon Ping, Thanks for the tip, but I can't for the life of me seem to get the Value from a StoreSDNode. From looking at the SelectionDAGNodes header file, the only class that has the getValue function call is SrcValueSDNode that returns a Value type. The only class that has getType is a ConstantPoolSDNode. I don't think that ConstantPoolSDNode is what I want and when I try to cast the getBasePtr().Val of the StoreSDNode to a SrcValueSDNode it asserts on: Assertion failed: isa<X>(Val) && "cast<Ty>() argument of incompatible type!" This is what I'm attemptin...

...0) // Ensure that codegen never sees alignment 0 Alignment = getMVTAlignment(VT); Inside getMVTAlignment, the ABI alignment is retrieved for the given VT. It appears that constants are already aligned to the preferred alignment, given this code in ScheduleDAG::AddOperand(): } else if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(Op)) { [...] Align = TM.getTargetData()->getPreferredTypeAlignmentShift(Type); (note there is a curious FIXME there about alignment of vector types -- I think this may be a relic since getPreferredTypeAlignmentShift should not return ze...

..., %hi($CPI1_0) // lwc1 $f0, %lo($CPI1_0)($2) if ((Addr.getOperand(0).getOpcode() == MipsISD::Hi || Addr.getOperand(0).getOpcode() == ISD::LOAD) && Addr.getOperand(1).getOpcode() == MipsISD::Lo) { SDValue LoVal = Addr.getOperand(1); if (dyn_cast<ConstantPoolSDNode>(LoVal.getOperand(0))) { Base = Addr.getOperand(0); Offset = LoVal.getOperand(0); return true; } } } This optimization folds the low 16 bits of the global address into the load offset, rather than generating a separate 'addiu' instruction. To...

The address qualifier is stored in the type of %result. From that operand, you can get the Value and then call getType. The type for result should be a PointerType which you cast to a PointerType and get the getAddressSpace e.g. cast<PointerType>(Ty)->getAddressSpace() -- Mon Ping On Sep 17, 2008, at 1:06 PM, Villmow, Micah wrote: > How do I access the address qualifier

How do I access the address qualifier from the store instruction. Given the following code: define void @test_unary_op_anegate(float %x, float addrspace(11)* %result) nounwind { entry: %neg = sub float -0.000000e+000, %x ; <float> [#uses=1] store float %neg, float addrspace(11)* %result ret void } When I attempt to generate this code, I'm

I am investigating the leak in MC/ARM/elf-reloc-01.ll on the valgrind bot. It seems to be leaking two MachineConstantPoolValues. When a ConstantPoolSDNode is created with a ConstantPoolValue, it owns that ConstantPoolValue. In InstrEmitter::AddOperand(), the index of the CPV is taken from a MachineConstantPool, which has two cases: 1) This is a new constant, so a new entry is created. The MachineConstantPoolValue is freed in MachineConstantPool'...

...such that they are free to be placed anywhere while generating the instruction sequence. Is this related with above problem of debug location ? The list of passive nodes are :- ConstantSDNode ConstantFPSDNode RegisterSDNode RegisterMaskSDNode GlobalAddressSDNode BasicBlockSDNode FrameIndexSDNode ConstantPoolSDNode JumpTableSDNode ExternalSymbolSDNode BlockAddressSDNode MDNodeSDNode Thanks Karthik -------------- next part -------------- A non-text attachment was scrubbed... Name: gdb11531.s Type: application/octet-stream Size: 10377 bytes Desc: not available URL: <http://lists.llvm.org/pipermail/llvm-...

...cast<ConstantSDNode>(Base.getOperand(1))) { + Base = Base.getOperand(0); + Offset += C->getValue(); + } + } + + // If it's any of the following then it can't alias with anything but itself. + return isa<FrameIndexSDNode>(Base) || + isa<ConstantPoolSDNode>(Base) || + isa<GlobalAddressSDNode>(Base); + } + + /* FIXME: copied from DAGCombiner.cpp */ + /// isAlias - Return true if there is any possibility that the two addresses + /// overlap. + bool isAlias(SDOperand Ptr1, int64_t Size1, + const Value *SrcValue1, i...

On Wed, May 20, 2009 at 4:55 PM, Dan Gohman <gohman at apple.com> wrote: > Can you explain why you chose the approach of using a new pass? > I pictured removing LegalizeDAG's type legalization code would > mostly consist of finding all the places that use TLI.getTypeAction > and just deleting code for handling its Expand and Promote. Are you > anticipating something more

On May 20, 2009, at 1:34 PM, Eli Friedman wrote: > On Wed, May 20, 2009 at 1:19 PM, Eli Friedman > <eli.friedman at gmail.com> wrote: > >> Per subject, this patch adding an additional pass to handle vector >> >> operations; the idea is that this allows removing the code from >> >> LegalizeDAG that handles illegal types, which should be a significant

...SignSet, Four, Zero); - uint64_t FF = 0x5f800000ULL; - if (TLI.isLittleEndian()) FF <<= 32; - Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); - - SDValue CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); - unsigned Alignment = cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); - CPIdx = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), CPIdx, CstOffset); - Alignment = std::min(Alignment, 4u); - SDValue FudgeInReg; - if (DestTy == MVT::f32) - FudgeInReg = DAG.getLoad(MVT::f32, dl, DAG.getEntryNode(), CPIdx, -...