Dear contributor, our automatic CI has detected problems related to your patch(es).  Please find some details below.  If you have any questions, please follow up on linaro-toolchain@lists.linaro.org mailing list, Libera's #linaro-tcwg channel, or ping your favourite Linaro toolchain developer on the usual project channel.

In CI config tcwg_bmk-code_size-coremark/gnu_eabi-arm_eabi-master-Os after:

  | 121 commits in binutils,gcc,newlib
  | 19e012c813f Updated debug architecture version checks for fbsd
  | dc449cb9638 Add new debug architecture version
  | b4617f79047 i386-dis.c UB shift and other tidies
  | 4a8635cbecb binutils runtest $CC
  | 5b429b87076 Avoid another -Werror=dangling-pointer
  | ... and 35 more commits in binutils
  | 5bdc5155138 Convert users of legacy API to get_legacy_range() function.
  | 964b02cb26d Remove irange::constant_p.
  | a38bb14f013 Remove symbolics from irange.
  | 983ad30d42c Remove irange::may_contain_p.
  | bfd9415761d Remove range_fold_{unary,binary}_expr.
  | ... and 72 more commits in gcc
  | e301a74a6 Fix _REENT_EMERGENCY() if TLS is enabled
  | c3798a2f7 Cygwin: locales: drop unused has_modifier macro
  | 48ae24fd8 Cygwin: locales: ignore @cjkwide and @cjksingle just like @cjknarrow
  | fd26d4b4b RTEMS: Add __m68k_read_tp() to crt0.c

No change

Below reproducer instructions can be used to re-build both "first_bad" and "last_good" cross-toolchains used in this bisection.  Naturally, the scripts will fail when triggerring benchmarking jobs if you don\'t have access to Linaro TCWG CI.

Configuration:
- Benchmark: EEMBC CoreMark
- Toolchain: GCC + Newlib + GNU LD
- Version: all components were built from their tip of trunk
- Target: arm-eabi
- Compiler flags: Os
- Hardware: STMicroelectronics STM32L476RGTx 1x Cortex-M4

This benchmarking CI is work-in-progress, and we welcome feedback and suggestions at linaro-toolchain@lists.linaro.org .  In our improvement plans is to add support for SPEC CPU2017 benchmarks and provide "perf report/annotate" data behind these reports.

-----------------8<--------------------------8<--------------------------8<--------------------------
The information below can be used to reproduce a debug environment:

Current build   : https://ci.linaro.org/job/tcwg_bmk-code_size-coremark--gnu_eabi-arm_eabi-master-Os-build/20/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_bmk-code_size-coremark--gnu_eabi-arm_eabi-master-Os-build/19/artifact/artifacts