diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/beam/beam_emu.c | 18 | ||||
| -rw-r--r-- | erts/emulator/beam/ops.tab | 71 |
2 files changed, 68 insertions, 21 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index bac7057abe..2c10e7ae7c 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -551,7 +551,23 @@ void** beam_ops; Store(term, Dst); \ } while (0) -#define Move2(S1, D1, S2, D2) D1 = (S1); D2 = (S2) +#define Move2Par(S1, D1, S2, D2) \ + do { \ + Eterm V1, V2; \ + V1 = (S1); V2 = (S2); D1 = V1; D2 = V2; \ + } while (0) + +#define MoveShift(Src, SD, D) \ + do { \ + Eterm V; \ + V = Src; D = SD; SD = V; \ + } while (0) + +#define MoveDup(Src, D1, D2) \ + do { \ + D1 = D2 = (Src); \ + } while (0) + #define Move3(S1, D1, S2, D2, S3, D3) D1 = (S1); D2 = (S2); D3 = (S3) #define MoveReturn(Src) \ diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index 4ab08faae3..97525c3b72 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -303,21 +303,40 @@ move_window3 x x x y move_window4 x x x x y move_window5 x x x x x y -move X1=x Y1=y | move X2=x Y2=y => move2 X1 Y1 X2 Y2 -move Y1=y X1=x | move Y2=y X2=x => move2 Y1 X1 Y2 X2 -move X1=x X2=x | move X3=x X4=x => move2 X1 X2 X3 X4 +move Src=x D1=x | move Src=x D2=x => move_dup Src D1 D2 +move Src=x SD=x | move SD=x D=x => move_dup Src SD D +move Src=x D1=x | move Src=x D2=y => move_dup Src D1 D2 +move Src=y SD=x | move SD=x D=y => move_dup Src SD D +move Src=x SD=x | move SD=x D=y => move_dup Src SD D +move Src=y SD=x | move SD=x D=x => move_dup Src SD D -move X1=x X2=x | move X3=x Y1=y => move2 X1 X2 X3 Y1 +move SD=x D=x | move Src=xy SD=x => move_shift Src SD D +move SD=y D=x | move Src=x SD=y => move_shift Src SD D +move SD=x D=y | move Src=x SD=x => move_shift Src SD D -move S1=x S2=x | move X1=x Y1=y => move2 S1 S2 X1 Y1 -move S1=y S2=x | move X1=x Y1=y => move2 S1 S2 X1 Y1 +# The transformations above guarantee that the source for +# the second move is not the same as the destination for +# the first move. That means that we can do the moves in +# parallel (fetch both values, then store them) which could +# be faster. -move Y1=y X1=x | move S1=x D1=x => move2 Y1 X1 S1 D1 -move S1=x D1=x | move Y1=y X1=x => move2 S1 D1 Y1 X1 +move X1=x Y1=y | move X2=x Y2=y => move2_par X1 Y1 X2 Y2 +move Y1=y X1=x | move Y2=y X2=x => move2_par Y1 X1 Y2 X2 -move2 X1=x Y1=y X2=x Y2=y | move X3=x Y3=y => move3 X1 Y1 X2 Y2 X3 Y3 -move2 Y1=y X1=x Y2=y X2=x | move Y3=y X3=x => move3 Y1 X1 Y2 X2 Y3 X3 -move2 X1=x X2=x X3=x X4=x | move X5=x X6=x => move3 X1 X2 X3 X4 X5 X6 +move X1=x X2=x | move X3=x X4=x => move2_par X1 X2 X3 X4 + +move X1=x X2=x | move X3=x Y1=y => move2_par X1 X2 X3 Y1 + +move S1=x S2=x | move X1=x Y1=y => move2_par S1 S2 X1 Y1 + +move S1=y S2=x | move X1=x Y1=y => move2_par S1 S2 X1 Y1 + +move Y1=y X1=x | move S1=x D1=x => move2_par Y1 X1 S1 D1 +move S1=x D1=x | move Y1=y X1=x => move2_par S1 D1 Y1 X1 + +move2_par X1=x Y1=y X2=x Y2=y | move X3=x Y3=y => move3 X1 Y1 X2 Y2 X3 Y3 +move2_par Y1=y X1=x Y2=y X2=x | move Y3=y X3=x => move3 Y1 X1 Y2 X2 Y3 X3 +move2_par X1=x X2=x X3=x X4=x | move X5=x X6=x => move3 X1 X2 X3 X4 X5 X6 move C=aiq X=x==1 => move_x1 C move C=aiq X=x==2 => move_x2 C @@ -325,18 +344,30 @@ move C=aiq X=x==2 => move_x2 C move_x1 c move_x2 c -%macro: move2 Move2 -pack -move2 x y x y -move2 y x y x -move2 x x x x +%macro: move_shift MoveShift -pack +move_shift x x x +move_shift y x x +move_shift x y x +move_shift x x y + +%macro: move_dup MoveDup -pack +move_dup x x x +move_dup x x y +move_dup y x x +move_dup y x y + +%macro: move2_par Move2Par -pack + +move2_par x y x y +move2_par y x y x +move2_par x x x x -move2 x x x y +move2_par x x x y -move2 x y x y -move2 y x x y +move2_par y x x y -move2 x x y x -move2 y x x x +move2_par x x y x +move2_par y x x x %macro: move3 Move3 move3 x y x y x y |