JDK-8302801 : Remove fdlibm C sources
  • Type: Sub-task
  • Component: core-libs
  • Sub-Component: java.lang
  • Affected Version: 21
  • Priority: P4
  • Status: Closed
  • Resolution: Fixed
  • Submitted: 2023-02-17
  • Updated: 2023-03-13
  • Resolved: 2023-03-07
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JDK 21
21 b13Fixed
Related Reports
Cloners :  
JDK-8303798 - REDO - Remove fdlibm C sources
Relates :  
JDK-8303799 - [BACKOUT] JDK-8302801 Remove fdlibm C sources
Relates :  
JDK-8074816 - Resolve disabled warnings for libfdlibm
Relates :  
JDK-8303794 - IEEEremainder problems are causing test failures after JDK-8302801
Relates :  
JDK-4294714 - fdlibm uses HI/LO macros which depend on pointer aliasing - portability issue
Relates :  
JDK-6989117 - fdlibm compiler warning messages
Description
This change can include update the description in StrictMath:

"These algorithms, which are written in the C programming language, are then to be understood as executed with all floating-point operations following the rules of Java floating-point arithmetic. "

to include the mappings used during the transliteration:

* C unsigned int => Java int, >> on unsigned C values replaced with >>>, comparison of unsigned values replaced with Integer.compareUnsigned.
* Pointer aliasing or unions replaced with Double.doubleToRawLongBits and Double.longBitsToDouble.
Comments
Changes are being backed out due to missing IEEEremainder definition.
08-03-2023
Changeset: b5b5cba7 Author: Joe Darcy <darcy@openjdk.org> Date: 2023-03-07 22:28:12 +0000 URL: https://git.openjdk.org/jdk/commit/b5b5cba7feb0e7ef957fd6bef1e591fdb6fdaa9f
07-03-2023
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/12821 Date: 2023-03-02 05:54:52 +0000
02-03-2023