RFR: 8346888: [ubsan] block.cpp:1617:30: runtime error: 9.97582e+36 is outside the range of representable values of type 'int'

[Matthias Baesken]

When running jtreg tests on macOS aarch64 with ubsan - enabled binaries, in the test
java/foreign/TestHandshake
this error/warning is reported :
 
jdk/src/hotspot/share/opto/block.cpp:1617:30: runtime error: 9.97582e+36 is outside the range of representable values of type 'int'
UndefinedBehaviorSanitizer:DEADLYSIGNAL
UndefinedBehaviorSanitizer: nested bug in the same thread, aborting.
 
Seems it happens in this calculation (float value does not fit into an int) : int to_pct = (int) ((100 * freq) / target->_freq);

-------------

Commit messages:
 - JDK-8346888

Changes: https://git.openjdk.org/jdk/pull/23962/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23962&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8346888
  Stats: 4 lines in 1 file changed: 2 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/23962.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23962/head:pull/23962

PR: https://git.openjdk.org/jdk/pull/23962