brtr

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native on: all

Branch on true predicate. There can be several conditionless branches in an EBB and even in the same operation, which are all processed in parallel, but the first successful in the lowest slot wins.

The targets in branches, whether literal or from a belt operand, are always relative to the EBB entry point. The optional delay serves to synchronize with operations that need to finish before control is transferred to the next EBB. This is particularly important for the predicates to examine for the branch, the value of which is examined after the delay.

The branch not taken case is more efficient and faster, i.e. the compiler takes care to schedule the conditional branches with their more likely case not to be taken, to achieve the longest possible code sequences without control transfers.

related operations: br, brfl


brtr(pred q, p target)

operands: like Inv :


Core In Slots Latencies
Tin F0 1
Copper F0 F1 1
Silver F0 F1 F2 1
Gold F0 F1 F2 F3 1
Decimal8 F0 F1 F2 1
Decimal16 F0 F1 F2 1

brtr(pred q, p target, lit delay)

operands: like Inv :


Core In Slots Latencies
Tin F0 1
Copper F0 F1 1
Silver F0 F1 F2 1
Gold F0 F1 F2 F3 1
Decimal8 F0 F1 F2 1
Decimal16 F0 F1 F2 1

brtr(pred q, lbl target)

operands: like Inv :


Core In Slots Latencies
Tin F0 1
Copper F0 F1 1
Silver F0 F1 F2 1
Gold F0 F1 F2 F3 1
Decimal8 F0 F1 F2 1
Decimal16 F0 F1 F2 1

brtr(pred q, lbl target, lit delay)

operands: like Inv :


Core In Slots Latencies
Tin F0 1
Copper F0 F1 1
Silver F0 F1 F2 1
Gold F0 F1 F2 F3 1
Decimal8 F0 F1 F2 1
Decimal16 F0 F1 F2 1


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