[fpc-devel] Testing Intel/AMD AVX-Implemenation

[Torsten]

Am 03.05.2012 20:25, schrieb Florian Klämpfl:
> Comments:
> - I'am not happy with the new fields localvarsize and localconstoffset
> in rautils.toprrec. Increasing the size of toprrec will probably
> increase memory usage of the compiler, I also didn't get yet the use of
> the fields: localsym and localsymofs should allow to figure out the same?
I need this to validate memory-reference-operands (only SSE- or AVX 
opcodes).
Calculate the size of record-elements is impossible (with localsym) in 
Tx86Instruction.AddReferenceSize.
Get the offset of record-elements is impossible (with localsymofs) in 
Tx86Instruction.AddReferenceSize.



type
   TYMMWord = record
     i0: dword;
     i1: dword;
     i2: dword;
     i3: dword;
     i4: dword;
     i5: dword;
     i6: dword;
     i7: dword;
   end;



datatyp            localvarsize    tabstractnormalvarsym(localsym)    
     localconstoffset        localsymofs
byte                                1                            1
word                               2                            2
dword                             4                            4
...

TYMMWord                 32                        32                    
                                             0                        
         0
TYMMWord.i1               4                        32                    
                                             0                        
         4
TYMMWord.i1 + 16      4                        32                        
                                       16                              20

I have not simple idea how to use localsym and localsymofs to validate 
memory-reference-size.



> Besides this, the changes look already very good to me!
Thanks
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Torsten