[riscv-port-jdk17u:riscv-port] RFR: 8296448: RISC-V: Fix temp usages of heapbase register killed by MacroAssembler::en/decode_klass_not_null [v2]

[Dingli Zhang]

> Please review this backport to riscv-port-jdk17u.
> Backport of [JDK-8296448](https://bugs.openjdk.org/browse/JDK-8296448).
> 
> Compared to the original patch, 17u does not have the patches [JDK-8295457](https://bugs.openjdk.org/browse/JDK-8295457) and [JDK-8293290](https://bugs.openjdk.org/browse/JDK-8293290), so some parameters will be slightly different.
> 
> The same problem was reproduced using the same method as in the original issue:
> 
> # To suppress the following error report, specify this argument
> # after -XX: or in .hotspotrc:  SuppressErrorAt=/stackValue.cpp:139
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  Internal Error (/home/zhangdingli/riscv-port-jdk17u/src/hotspot/share/runtime/stackValue.cpp:139), pid=1963135, tid=1963872
> #  assert(oopDesc::is_oop_or_null(val, false)) failed: bad oop found
> #
> # JRE version: OpenJDK Runtime Environment (17.0.7) (fastdebug build 17.0.7-internal+0-adhoc.zhangdingli.riscv-port-jdk17u)
> # Java VM: OpenJDK 64-Bit Server VM (fastdebug 17.0.7-internal+0-adhoc.zhangdingli.riscv-port-jdk17u, mixed mode, sharing, compressed class ptrs, g1 gc, linux-riscv64)
> # Problematic frame:
> # V  [libjvm.so+0x12057b0]  StackValue::create_stack_value(frame const*, RegisterMap const*, ScopeValue*)+0x9e2
> #
> # No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
> #
> # An error report file with more information is saved as:
> # /home/zhangdingli/riscv-port-jdk17u/hs_err_pid1963135.log
> #
> # If you would like to submit a bug report, please visit:
> #   https://bugreport.java.com/bugreport/crash.jsp
> #
> Aborted
> 
> To reproduce using a cross-compiled build:
> 
> <java> -XX:-UseCompressedOops -XX:+UseCompressedClassPointers -Xshare:dump -Xlog:cds* -version
> <java> -XX:-UseCompressedOops -XX:+UseCompressedClassPointers -Xshare:on -XX:-TieredCompilation \
>        -Xlog:cds* -Xlog:gc+metaspace=info -jar renaissance-gpl-0.14.1.jar -r 1 movie-lens
> 
> The problem was solved after this patch.
> 
> Testing:
> - Tier1 passed without new failure on unmacthed (release).

Dingli Zhang has updated the pull request incrementally with one additional commit since the last revision:

  Fix the access_store_at parameter

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

Changes:
  - all: https://git.openjdk.org/riscv-port-jdk17u/pull/12/files
  - new: https://git.openjdk.org/riscv-port-jdk17u/pull/12/files/33abdfd4..cc9d3f5c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=riscv-port-jdk17u&pr=12&range=01
 - incr: https://webrevs.openjdk.org/?repo=riscv-port-jdk17u&pr=12&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/riscv-port-jdk17u/pull/12.diff
  Fetch: git fetch https://git.openjdk.org/riscv-port-jdk17u pull/12/head:pull/12

PR: https://git.openjdk.org/riscv-port-jdk17u/pull/12