Integrated: 8302518: Add missing Op_RoundDoubleMode in VectorNode::vector_operands()

[Pengfei Li]

On Thu, 16 Feb 2023 08:22:20 GMT, Pengfei Li <pli at openjdk.org> wrote:

> This is a one-line fix.
> 
> `VectorNode::vector_operands()` is a C2 function used to get a half-open range of `[start, end)` defining which operands are vectors to process. `Op_RoundDoubleMode` has two operands but only the 1st one is a vector. Its 2nd operand is the rounding mode. Missing this op results in its 2nd operand treated as a vector. It is fortunate that it hasn't caused any issue yet as the code follows just treated the 2nd input as an immediate to replicate later. If we add some check like `n->is_Vector()` for the vectorized node then, there will be issues. We should fix this potential problem.
> 
> Tested tier1.

This pull request has now been integrated.

Changeset: 71cf7c44
Author:    Pengfei Li <pli at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/71cf7c4409025c87ac786a54171f00de69fe5317
Stats:     8 lines in 1 file changed: 8 ins; 0 del; 0 mod

8302518: Add missing Op_RoundDoubleMode in VectorNode::vector_operands()

Reviewed-by: kvn, jbhateja

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PR: https://git.openjdk.org/jdk/pull/12584