Thanks. But please factor out the code that looks for the register
class into a function so it can be shared between CopyToReg and
CopyFromReg.
Evan
On Mar 20, 2007, at 9:47 AM, Lauro Ramos Venancio wrote:
>
>
> Changes in directory llvm/lib/CodeGen/SelectionDAG:
>
> ScheduleDAG.cpp updated: 1.122 -> 1.123
> ---
> Log message:
>
> CopyToReg source operand can be a physical register.
>
>
> ---
> Diffs of the changes: (+19 -3)
>
> ScheduleDAG.cpp | 22 +++++++++++++++++++---
> 1 files changed, 19 insertions(+), 3 deletions(-)
>
>
> Index: llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
> diff -u llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp:1.122 llvm/
> lib/CodeGen/SelectionDAG/ScheduleDAG.cpp:1.123
> --- llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp:1.122 Sat Feb 17
> 00:38:37 2007
> +++ llvm/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp Tue Mar 20
> 11:46:44 2007
> @@ -475,9 +475,25 @@
> else
> InReg = getVR(Node->getOperand(2), VRBaseMap);
> unsigned DestReg = cast<RegisterSDNode>(Node->getOperand(1))-
> >getReg();
> - if (InReg != DestReg) // Coalesced away the copy?
> - MRI->copyRegToReg(*BB, BB->end(), DestReg, InReg,
> - RegMap->getRegClass(InReg));
> + if (InReg != DestReg) {// Coalesced away the copy?
> + const TargetRegisterClass *TRC = 0;
> + // Get the target register class
> + if (MRegisterInfo::isVirtualRegister(InReg)) {
> + TRC = RegMap->getRegClass(InReg);
> + } else {
> + // Pick the register class of the right type that
> contains this
> + // physreg.
> + for (MRegisterInfo::regclass_iterator I = MRI-
> >regclass_begin(),
> + E = MRI->regclass_end(); I != E; ++I)
> + if ((*I)->hasType(Node->getOperand(2).getValueType()) &&
> + (*I)->contains(InReg)) {
> + TRC = *I;
> + break;
> + }
> + assert(TRC && "Couldn't find register class for reg
> copy!");
> + }
> + MRI->copyRegToReg(*BB, BB->end(), DestReg, InReg, TRC);
> + }
> break;
> }
> case ISD::CopyFromReg: {
>
>
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits@cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
_______________________________________________
llvm-commits mailing list
llvm-commits@cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
