Re: RFR: 8286562: GCC 12 reports some compiler warnings [v7]
On Tue, 17 May 2022 13:32:42 GMT, Yasumasa Suenaga wrote: >> I saw some compiler warnings when I tried to build OpenJDK with GCC 12.0.1 >> on Fedora 36. >> As you can see, the warnings spreads several areas. Let me know if I should >> separate them by area. >> >> * -Wstringop-overflow >> * src/hotspot/share/oops/array.hpp >> * >> src/hotspot/share/jfr/recorder/checkpoint/types/traceid/jfrTraceIdBits.inline.hpp >> >> In member function 'void Array::at_put(int, const T&) [with T = unsigned >> char]', >> inlined from 'void ConstantPool::tag_at_put(int, jbyte)' at >> /home/ysuenaga/github-forked/jdk/src/hotspot/share/oops/constantPool.hpp:126:64, >> inlined from 'void ConstantPool::method_at_put(int, int, int)' at >> /home/ysuenaga/github-forked/jdk/src/hotspot/share/oops/constantPool.hpp:380:15, >> inlined from 'ConstantPool* >> BytecodeConstantPool::create_constant_pool(JavaThread*) const' at >> /home/ysuenaga/github-forked/jdk/src/hotspot/share/classfile/bytecodeAssembler.cpp:85:26: > > Yasumasa Suenaga has updated the pull request incrementally with one > additional commit since the last revision: > > revert changes for memnode.cpp and type.cpp In case of stringop-overflow errors (bytecodeAssembler.cpp, classFileParser.cpp, symbolTable.cpp) noted that offset of `Array::_data` might be [-2147483648, -1]. - PR: https://git.openjdk.java.net/jdk/pull/8646
Re: RFR: 8286562: GCC 12 reports some compiler warnings [v7]
> I saw some compiler warnings when I tried to build OpenJDK with GCC 12.0.1 on > Fedora 36. > As you can see, the warnings spreads several areas. Let me know if I should > separate them by area. > > * -Wstringop-overflow > * src/hotspot/share/oops/array.hpp > * > src/hotspot/share/jfr/recorder/checkpoint/types/traceid/jfrTraceIdBits.inline.hpp > > In member function 'void Array::at_put(int, const T&) [with T = unsigned > char]', > inlined from 'void ConstantPool::tag_at_put(int, jbyte)' at > /home/ysuenaga/github-forked/jdk/src/hotspot/share/oops/constantPool.hpp:126:64, > inlined from 'void ConstantPool::method_at_put(int, int, int)' at > /home/ysuenaga/github-forked/jdk/src/hotspot/share/oops/constantPool.hpp:380:15, > inlined from 'ConstantPool* > BytecodeConstantPool::create_constant_pool(JavaThread*) const' at > /home/ysuenaga/github-forked/jdk/src/hotspot/share/classfile/bytecodeAssembler.cpp:85:26: Yasumasa Suenaga has updated the pull request incrementally with one additional commit since the last revision: revert changes for memnode.cpp and type.cpp - Changes: - all: https://git.openjdk.java.net/jdk/pull/8646/files - new: https://git.openjdk.java.net/jdk/pull/8646/files/73c306d7..88cbf46d Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk=8646=06 - incr: https://webrevs.openjdk.java.net/?repo=jdk=8646=05-06 Stats: 7 lines in 2 files changed: 0 ins; 7 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/8646.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/8646/head:pull/8646 PR: https://git.openjdk.java.net/jdk/pull/8646
