JDK-8162338 : AArch64: Intrinsify fused mac operations
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 9
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • CPU: aarch64
  • Submitted: 2016-07-21
  • Updated: 2016-12-22
  • Resolved: 2016-12-12
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JDK 9
9 b150Fixed
Related Reports
Blocks :  
JDK-8154122 - Intrinsify fused mac operations on x86
Relates :  
JDK-8171092 - C1's Math.fma() intrinsic doesn't correctly process its inputs
Relates :  
JDK-4851642 - Add fused multiply add to Java math library
Relates :  
JDK-8164888 - Intrinsify fused mac operations on SPARC
Description
Once the fused mac operation has library support (JDK-4851642), it is a natural candidate to be intrinsified.
Comments
New webrev without the shared code bug fix: http://cr.openjdk.java.net/~roland/8162338/webrev.01/ bug fix is under JDK-8171092
12-12-2016
http://cr.openjdk.java.net/~roland/8162338/webrev.00/ It changed c1/c1_LIR.cpp. Can you do without this change? Otherwise RFE have to be rejected since there is no time to go through internal review process.
09-12-2016
FC Extension Request: This is low-risk and won't affect any target but AArch64.
09-12-2016
JDK-8154122 was pushed. Andrew, add FC Extension Request and jdk9-fc-request label if you want to push aarch64 changes into jdk 9.
14-09-2016