OpenJDK / panama / dev
changeset 61108:766517a61b6e vectorIntrinsics
Clarify the equivalent behavior of Vector.reduceLanesToLong.
Reviewed-by: jrose
| author | psandoz |
|---|---|
| date | Tue, 12 May 2020 08:55:11 -0700 |
| parents | 06c1db1d647a |
| children | 0c20aad404ef |
| files | src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Vector.java |
| diffstat | 1 files changed, 10 insertions(+), 6 deletions(-) [+] |
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--- a/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Vector.java Fri May 08 15:34:18 2020 -0700 +++ b/src/jdk.incubator.vector/share/classes/jdk/incubator/vector/Vector.java Tue May 12 08:55:11 2020 -0700 @@ -1835,8 +1835,10 @@ * * This is an associative cross-lane reduction operation which * applies the specified operation to all the lane elements. - * The result is delivered as a {@code long} value, rather - * than the vector's native {@code ETYPE}. + * The return value will be equal to this expression: + * {@code (long) ((EVector)this).reduceLanes(op)}, where {@code EVector} + * is the vector class specific to this vector's element type + * {@code ETYPE}. * <p> * In the case of operations {@code ADD} and {@code MUL}, * when {@code ETYPE} is {@code float} or {@code double}, @@ -1872,8 +1874,10 @@ * * This is an associative cross-lane reduction operation which * applies the specified operation to the selected lane elements. - * The result is delivered as a {@code long} value, rather - * than the vector's native {@code ETYPE}. + * The return value will be equal to this expression: + * {@code (long) ((EVector)this).reduceLanes(op, m)}, where {@code EVector} + * is the vector class specific to this vector's element type + * {@code ETYPE}. * <p> * If no elements are selected, an operation-specific identity * value is returned. @@ -2063,7 +2067,7 @@ * * <p> * The result is the same as - * {@code this.compare(op, this.broadcast(s))}. + * {@code this.compare(op, this.broadcast(e))}. * That is, the scalar may be regarded as broadcast to * a vector of the same species, and then compared * against the original vector, using the selected @@ -2102,7 +2106,7 @@ * to each lane value, paired with the broadcast value. * * The returned result is equal to the expression - * {@code compare(op,s).and(m)}. + * {@code compare(op,e).and(m)}. * * @apiNote * The {@code long} value {@code e} must be accurately