8187684: Intrinsify Math.multiplyHigh(long, long)

Reviewed-by: kvn, aph, lucy
2025-08-26 14:24:46 +02:00 · 2017-10-04 11:52:07 -07:00 · 2017-10-04 11:52:07 -07:00 · 949f677957
commit 949f677957
parent f651176392
4 changed files with 13 additions and 0 deletions
--- a/src/java.base/share/classes/java/lang/Math.java
+++ b/src/java.base/share/classes/java/lang/Math.java
@ -1094,6 +1094,7 @@ public final class Math {
     * @return the result
     * @since 9
     */
+    @HotSpotIntrinsicCandidate
    public static long multiplyHigh(long x, long y) {
        if (x < 0 || y < 0) {
            // Use technique from section 8-2 of Henry S. Warren, Jr.,