git: openjdk/jdk: master: 8356865: C2: Unreasonable values for debug flag FastAllocateSizeLimit can lead to left-shift-overflow, which is UB

[Emanuel Peter]

Changeset: c220b135
Branch: master
Author:    Benoît Maillard <bmaillard at openjdk.org>
Committer: Emanuel Peter <epeter at openjdk.org>
Date:      2025-06-23 07:52:02 +0000
URL:       https://git.openjdk.org/jdk/commit/c220b1358c91bce2eb7515e9f600004c7b975ee6

8356865: C2: Unreasonable values for debug flag FastAllocateSizeLimit can lead to left-shift-overflow, which is UB

Reviewed-by: epeter, mhaessig

! src/hotspot/share/opto/graphKit.cpp
! src/hotspot/share/runtime/globals.hpp
+ test/hotspot/jtreg/compiler/arguments/TestFastAllocateSizeLimit.java