> A bug in GCC causes shared libraries linked with -ffast-math to disable > denormal arithmetic. This breaks Java's floating-point semantics. > > The bug is https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55522 > > One solution is to save and restore the floating-point control word around > System.loadLibrary(). This isn't perfect, because some shared library might > load another shared library at runtime, but it's a lot better than what we do > now. > > However, this fix is not complete. `dlopen()` is called from many places in > the JDK. I guess the best thing to do is find and wrap them all. I'd like to > hear people's opinions.
Andrew Haley has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 42 commits: - Merge - Fix header - Move IEE subnormal check to globalDefinitions - Remove accidental include - Duh - Remove dead code - Merge from head - s/Denormal/Subnormal/g - Review feedback - Merge branch 'JDK-8295159' of https://github.com/theRealAph/jdk into JDK-8295159 - ... and 32 more: https://git.openjdk.org/jdk/compare/f875163c...80ce877b ------------- Changes: https://git.openjdk.org/jdk/pull/10661/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10661&range=18 Stats: 278 lines in 11 files changed: 276 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/10661.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/10661/head:pull/10661 PR: https://git.openjdk.org/jdk/pull/10661
