GNU Arm Embedded Toolchain 5-2016-q1-update

Update 5 in Q1 2016

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GNU Arm Embedded Toolchain
Andre Vieira
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Release notes 

The 5 2016q1 update release is available at:


* All GCC 5 features, plus latest mainline features:
  + Cortex-R8 support
  + Cortex-M7 performance tuning
  + optimization of manual little endian and big endian loads
  + improved jump threading removing the need for -ftree-switch-shortcut
* ARMv8-M Baseline and Mainline alpha support:
  + atomics not included for ARMv8-M Baseline
  + ARMv8-M Security Extensions Alpha support
* Thumb-1 library optimizations
* CRC optimization
* Smaller terminate handler for newlib-nano

Important bugs fixed in 5 release:
* A bug that caused gdb's target remote command to behave unexpectedly when
  debugging simple programs

Known Changes and Issues:
* Thumb1 code size regression due to new register allocation:
A workaround is to disable it by option -mno-lra.


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