Introduce move.f32 and move.f64

[zherczeg]

This patch splits move32/64 to movei32/64 and movef32/64. The advantages of selecting move operation for this:

• Very simple implementation, the code size and speed of interpreter should not be affected. (I am not sure we can avoid code duplication because of computed goto labels)
• No need to parse move chains. E.g. const32, move32, move32, add.f32 is difficult to track. There are still cases, such as move32, store32, which cannot be analyzed, but these should have minimal impact.

What do you think?

[ksh8281]

Could you check interpreter performance difference?

[zherczeg]

Before change:

|        test        |/home/hzoli/Escargot/wabt/walrus/out/walrus|
|--------------------|-------------------------------------------|
|       change       |                   3.633                   |
|      factorial     |                   3.719                   |
|      fannkuch      |                   3.143                   |
|      fibonacci     |                   5.296                   |
|       gregory      |                   4.005                   |
|        hanoi       |                   4.704                   |
|      heapsort      |                   5.237                   |
|       huffman      |                   4.759                   |
|     kNucleotide    |                   3.942                   |
|  mandelbrotDouble  |                   3.772                   |
|   mandelbrotFloat  |                   3.581                   |
|   matrixMultiply   |                   5.927                   |
|     miniWalrus     |                   6.082                   |
|        nbody       |                   4.592                   |
|       nqueens      |                   4.229                   |
|        prime       |                   4.662                   |
|      quickSort     |                   4.515                   |
|      redBlack      |                   5.340                   |
|         rsa        |                   3.953                   |
|      salesman      |                   4.305                   |
|simdMandelbrotDouble|                   5.789                   |
| simdMandelbrotFloat|                   4.237                   |
| simdMatrixMultiply |                   11.720                  |
|      simdNbody     |                   2.784                   |
|      ticTacToe     |                   5.029                   |

After change:

|        test        |/home/hzoli/Escargot/wabt/walrus/out/walrus|
|--------------------|-------------------------------------------|
|       change       |                   3.686                   |
|      factorial     |                   3.649                   |
|      fannkuch      |                   3.245                   |
|      fibonacci     |                   5.363                   |
|       gregory      |                   3.816                   |
|        hanoi       |                   4.720                   |
|      heapsort      |                   5.298                   |
|       huffman      |                   4.946                   |
|     kNucleotide    |                   3.950                   |
|  mandelbrotDouble  |                   3.762                   |
|   mandelbrotFloat  |                   3.647                   |
|   matrixMultiply   |                   5.933                   |
|     miniWalrus     |                   5.383                   |
|        nbody       |                   4.659                   |
|       nqueens      |                   4.236                   |
|        prime       |                   4.635                   |
|      quickSort     |                   4.465                   |
|      redBlack      |                   5.368                   |
|         rsa        |                   4.270                   |
|      salesman      |                   4.417                   |
|simdMandelbrotDouble|                   5.653                   |
| simdMandelbrotFloat|                   4.346                   |
| simdMatrixMultiply |                   11.360                  |
|      simdNbody     |                   2.993                   |
|      ticTacToe     |                   5.118                   |

Looks like noise

[zherczeg]

@clover2123 what do you think about this patch? It does not affect perf, especially because move is rarely used. It is not a real webassembly instruction, more of a helper in some edge cases.

[clover2123]

It seems that the parsing/compilation overhead is not significant for the overall performance, as you mentioned, so It looks ok.