Propagate break to next partition
If the last active element of the first source predicate is false then set the destination predicate to all-false. Otherwise leaves the destination and second source predicate unchanged. Optionally sets the First (N), None (Z), !Last (C) condition flags based on the predicate result, and the V flag to zero.
It has encodings from 2 classes: Not setting the condition flags and Setting the condition flags
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | Pg | 0 | Pn | 0 | Pdm | |||||||||
| S | |||||||||||||||||||||||||||||||
if !HaveSVE() then UNDEFINED; integer g = UInt(Pg); integer n = UInt(Pn); integer dm = UInt(Pdm); boolean setflags = FALSE;
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | Pg | 0 | Pn | 0 | Pdm | |||||||||
| S | |||||||||||||||||||||||||||||||
if !HaveSVE() then UNDEFINED; integer g = UInt(Pg); integer n = UInt(Pn); integer dm = UInt(Pdm); boolean setflags = TRUE;
| <Pdm> |
Is the name of the second source and destination scalable predicate register, encoded in the "Pdm" field. |
| <Pg> |
Is the name of the governing scalable predicate register, encoded in the "Pg" field. |
| <Pn> |
Is the name of the first source scalable predicate register, encoded in the "Pn" field. |
CheckSVEEnabled(); bits(PL) mask = P[g]; bits(PL) operand1 = P[n]; bits(PL) operand2 = P[dm]; bits(PL) result; if LastActive(mask, operand1, 8) == '1' then result = operand2; else result = Zeros(); if setflags then PSTATE.<N,Z,C,V> = PredTest(Ones(PL), result, 8); P[dm] = result;
Internal version only: isa v32.15, AdvSIMD v29.05, pseudocode v2021-03, sve v2021-03_rc2 ; Build timestamp: 2021-03-30T21:36
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