[Patch ARM] Add initial tuning for Cortex-A55 and Cortex-A75
Much like my AArch64 patch a few weeks ago, this patch adds support
for the ARM Cortex-A75 and Cortex-A55 processors through the
-mcpu/-mtune values cortex-a55 and cortex-a75, and an
ARM DynamIQ big.LITTLE configuration of these two processors through
the -mcpu/-mtune value cortex-a75.cortex-a55
Both Cortex-A55 and Cortex-A75 support ARMv8-A with the ARM8.1-A and
ARMv8.2-A extensions. This is reflected in the patch, -mcpu=cortex-a75 is
treated as equivalent to passing -mtune=cortex-a75 -march=armv8.2-a+fp16
gcc/
2017-07-04 James Greenhalgh <james.greenhalgh@arm.com>