LLVM/Clang 9.0 Picks Up Support For Arm's Cortex-A76
As of this Clang commit and this LLVM commit on Monday, there is back-end support now wired up for the Cortex-A76 and Cortex-A76AE. With the cortex-a76 and cortex-a76ae values for -mcpu=, the Clang compiler can generate optimized machine code for this Arm CPU.
Adding the new Cortex-A76/A76AE CPU support happened for the LLVM Clang 9.0 release due out this fall, not the imminent LLVM Clang 8.0 release.
According to Arm, the Cortex-A76 offers 40% better power efficiency and 35% better performance over the Cortex-A75.
GCC meanwhile has offered Cortex-A76 support since last year's development code that will be found in the soon-to-be-released GCC 9.1.