[llvm-dev] error: In anonymous_4820: Unrecognized node 'VRR128'!

hameeza ahmed via llvm-dev llvm-dev at lists.llvm.org
Tue Jul 11 09:14:09 PDT 2017


Thank You.
But can we use same register class for fadd as well,
is this instruction correct?

def VFADD  : I<0x0E, MRMDestReg, (outs VRR128:$dst), (ins VRR128:$src1,
VRR128:$src2),"VFADD\t{$src1, $src2, $dst|$dst, $src1, $src2}", [(set
VRR128:$dst, (fadd VRR128:$src1, VRR128:$src2))]>, TA;

On Tue, Jul 11, 2017 at 9:00 PM, Craig Topper <craig.topper at gmail.com>
wrote:

> "add" only works for integers. Floating point requires fadd. They are
> different operations in hardware too so you probably need different
> instructions.
>
> ~Craig
>
> On Tue, Jul 11, 2017 at 8:55 AM, hameeza ahmed <hahmed2305 at gmail.com>
> wrote:
>
>> Thank You.
>>
>> How to do the same for add please see the following; it gives duplication
>> error.
>>
>> def VADD  : I<0x0E, MRMDestReg, (outs VRR128:$dst), (ins VRR128:$src1,
>> VRR128:$src2),"VADD\t{$src1, $src2, $dst|$dst, $src1, $src2}", [(set
>> VRR128:$dst, (add VRR128:$src1, VRR128:$src2))]>, TA;
>>
>> def : Pat<(add VRR128:$src1, VRR128:$src2), (VADD  VRPIM128:$src1,
>>  VRPIM128:$src2)>;
>> Where to place v32f32 to distinguish between the two?
>>
>> On Tue, Jul 11, 2017 at 7:55 PM, Craig Topper <craig.topper at gmail.com>
>> wrote:
>>
>>> You need a type inside this bitconvert. The outer type is the
>>> destination type for the bitconvert but it also needs an input type
>>>
>>> (store (v32i32 (bitconvert VRR128:$src)), addr:$dst)
>>>
>>> On Tue, Jul 11, 2017 at 7:27 AM hameeza ahmed <hahmed2305 at gmail.com>
>>> wrote:
>>>
>>>> hello,
>>>> i need to use v32i32 and v32f32 in store instructions.
>>>> I defined my register as;
>>>>
>>>> def VRR128 : RegisterClass<"X86", [v32i32, v32f32],
>>>>                           1024, (add R_0_V_0, R_1_V_0, R_2_V_0)>;
>>>>
>>>> def STORE_DWORD : I<0x70, MRMDestMem, (outs), (ins i2048mem:$dst,
>>>> VRR128:$src),
>>>>                     "STORE_DWORD\t{$src, $dst|$dst, $src}",
>>>>                     [(store (v32i32 (bitconvert VRR128:$src)),
>>>> addr:$dst)], IIC_MOV_MEM>, TA;
>>>>
>>>>
>>>>
>>>> def: Pat<(store (v32f32 (bitconvert (VRR128:$src))), addr:$dst),
>>>> (STORE_DWORD addr:$dst, VRR128:$src)>;
>>>>
>>>> but getting the following error;
>>>> STORE_DWORD: (st (bitconvert:v32i32 VRR128:{v32i32:v32f32}:$src),
>>>> addr:iPTR:$dst)<<P:Predicate_unindexedstore>><<P:Predicate_store>>
>>>> Included from /PIM/lib/Target/X86/X86.td:832:
>>>> /lib/Target/X86/X86InstrInfo.td:3166:1: error: In STORE_DWORD: Could
>>>> not infer all types in pattern!
>>>> def STORE_DWORD : I<0x70, MRMDestMem, (outs), (ins i2048mem:$dst,
>>>> VRR128:$src),
>>>> ^
>>>> anonymous_4820: /PIM/lib/Target/X86/X86.td:832:
>>>> /lib/Target/X86/X86InstrInfo.td:3173:1: error: In anonymous_4820:
>>>> Unrecognized node 'VRR128'!
>>>>
>>>> Please help.
>>>>
>>>> Thank You
>>>>
>>>> --
>>> ~Craig
>>>
>>
>>
>
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