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8212043: Add floating-point Math.min/max intrinsics

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Floating-point Math.min() and Math.max() intrinsics are enabled on AArch64 platform

Reviewed-by: adinn, aph
This commit is contained in:
Pengfei Li 2018-12-18 16:50:35 +00:00
parent 8b6b63b38b
commit 556d79b518
14 changed files with 214 additions and 1 deletions
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4
src/java.base/share/classes/java/lang/Math.java
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@ -1460,6 +1460,7 @@ public final class Math {
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
@HotSpotIntrinsicCandidate
public static float max(float a, float b) {
if (a != a)
return a; // a is NaN
@ -1486,6 +1487,7 @@ public final class Math {
* @param b another argument.
* @return the larger of {@code a} and {@code b}.
*/
@HotSpotIntrinsicCandidate
public static double max(double a, double b) {
if (a != a)
return a; // a is NaN
@ -1541,6 +1543,7 @@ public final class Math {
* @param b another argument.
* @return the smaller of {@code a} and {@code b}.
*/
@HotSpotIntrinsicCandidate
public static float min(float a, float b) {
if (a != a)
return a; // a is NaN
@ -1567,6 +1570,7 @@ public final class Math {
* @param b another argument.
* @return the smaller of {@code a} and {@code b}.
*/
@HotSpotIntrinsicCandidate
public static double min(double a, double b) {
if (a != a)
return a; // a is NaN