git: openjdk/jdk: master: 8336729: C2: Div/Mod nodes without zero check could be split through iv phi of outer loop of long counted loop nest resulting in SIGFPE

[Christian Hagedorn]

Changeset: 55a97ec8
Branch: master
Author:    Christian Hagedorn <chagedorn at openjdk.org>
Date:      2024-08-20 15:47:16 +0000
URL:       https://git.openjdk.org/jdk/commit/55a97ec8793242c0cacbafd3a4fead25cdce2934

8336729: C2: Div/Mod nodes without zero check could be split through iv phi of outer loop of long counted loop nest resulting in SIGFPE

Co-authored-by: Emanuel Peter <epeter at openjdk.org>
Reviewed-by: epeter, kvn, thartmann

! src/hotspot/share/opto/loopnode.hpp
! src/hotspot/share/opto/loopopts.cpp
! test/hotspot/jtreg/compiler/splitif/TestSplitDivisionThroughPhi.java