Default target-abi based on RISC-V extensions and user selectable -mabi/target-abi#10006

Merged

andrewrk merged 3 commits intoziglang:masterfrom

akovaski:riscv-default-abi

Dec 4, 2021

Commits on Dec 3, 2021

default mabi based on RISC-V extensions and -mabi build option

vole-dev
authored and
andrewrk
committed
turn off LTO by default for RISCV even in Release mode

vole-dev
authored and
andrewrk
committed

Commits on Dec 4, 2021

stage2: use Target.Abi instead of introducing Target.TargetAbi
andrewrk
committed