Kito Cheng 56f8ee5d8e [RISCV] Add -mtune support ... - The goal of this patch is improve option compatible with RISCV-V GCC, -mcpu support on GCC side will sent patch in next few days. - -mtune only affect the pipeline model and non-arch/extension related target feature, e.g. instruction fusion; in td file it called TuneFeatures, which is introduced by X86 back-end[1]. - -mtune accept all valid option for -mcpu and extra alias processor option, e.g. `generic`, `rocket` and `sifive-7-series`, the purpose is option compatible with RISCV-V GCC. - Processor alias for -mtune will resolve according the current target arch, rv32 or rv64, e.g. `rocket` will resolve to `rocket-rv32` or `rocket-rv64`. - Interaction between -mcpu and -mtune: * -mtune has higher priority than -mcpu for pipeline model and TuneFeatures. [1] https://reviews.llvm.org/D85165 Reviewed By: luismarques Differential Revision: https://reviews.llvm.org/D89025		2020-10-16 13:55:08 +08:00
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llvm	[RISCV] Add -mtune support	2020-10-16 13:55:08 +08:00
llvm-c	[LLVM-C] Turn a ShuffleVector Constant Into a Getter.	2020-09-26 17:32:57 -06:00