JDK-8131132 : C2 intrinsics for asin, acos
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 9,10
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • CPU: x86_64
  • Submitted: 2015-07-14
  • Updated: 2018-10-05
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tbdUnresolved
Related Reports
Relates :  
JDK-4141677 - The spec for java.lang.Math should not be written in C.
Description
A DESCRIPTION OF THE REQUEST :
Please add intristics for Math/StrictMath functions asin, acos. Performance will be greatly improved in GIS applications.

JUSTIFICATION :
GIS applications can greatly improve performance for some operations (coordinate system conversion). Other functions in Math are already intrisified. This removes JNI overhead for calling fdlibm implementation.
Comments
If fdlibm is ported to Java, where would be reduced need to intrinsify these methods.
14-07-2015