[jdk17u-dev] RFR: 8293887: AArch64 build failure with GCC 12 due to maybe-uninitialized warning in libfdlibm k_rem_pio2.c [v2]

[Dan Lutker]

> Trivial backport to support building GCC 12 on Aarch64. Backport was not clean because jdk17 does not have support to disable warnings at the per file level and must disable the warning for the module.
> 
> Successfully build on Linux x64 and aarc64 with gcc 12.2.0.

Dan Lutker has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains two new commits since the last revision:

 - Backport 02ea338177df781912dc782e32200eaf4731a0da
 - Backport e45f3d5176e4affaa08480b560ca983fdbcb2846

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Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/1231/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/1231/files/daff1cfd..c96608f6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1231&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1231&range=00-01

  Stats: 9 lines in 2 files changed: 6 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1231.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1231/head:pull/1231

PR: https://git.openjdk.org/jdk17u-dev/pull/1231