Displaying 3 results from an estimated 3 matches for "ai2ldw".
2010 Sep 07
0
[LLVMdev] MachineMemOperand and dependence information
...I had to guess, I would think it's because of how LDR is defined:
def addrmodepc : Operand<i32>,
ComplexPattern<i32, 2, "SelectAddrModePC", []> {
let PrintMethod = "printAddrModePCOperand";
let MIOperandInfo = (ops GPR, i32imm);
}
def LDR : AI2ldw<(outs GPR:$dst), (ins addrmode2:$addr), LdFrm, IIC_iLoadr,
"ldr", "\t$dst, $addr",
[(set GPR:$dst, (load addrmode2:$addr))]>;
It's using addrmodepc, which is a ComplexPattern. The TableGen code cannot handle resetting the memoperands if i...
2010 Sep 07
3
[LLVMdev] MachineMemOperand and dependence information
I have two questions regarding MachineMemOperands and dependence
information.
Q1) I noticed that MachineMemOperands are lost when two LDRs are combined
and a LDRD is generated in ARMPreAllocLoadStoreOpt:::RescheduleOps.
(before optimization)
%reg1033<def> = LDR %reg1030, %reg0, 4100, pred:14, pred:%reg0;
mem:LD4[%uglygep10]
%reg1054<def> = LDR %reg1030, %reg0, 4104, pred:14,
2010 Sep 07
1
[LLVMdev] MachineMemOperand and dependence information
...t's because of how LDR is defined:
>
> def addrmodepc : Operand<i32>,
> ComplexPattern<i32, 2, "SelectAddrModePC", []> {
> let PrintMethod = "printAddrModePCOperand";
> let MIOperandInfo = (ops GPR, i32imm);
> }
> def LDR : AI2ldw<(outs GPR:$dst), (ins addrmode2:$addr), LdFrm,
> IIC_iLoadr,
> "ldr", "\t$dst, $addr",
> [(set GPR:$dst, (load addrmode2:$addr))]>;
>
> It's using addrmodepc, which is a ComplexPattern. The TableGen code cannot
> handle res...