[PATCH][1/2] RISC-V: Set floating-point CSR-access instructions to alias instructions

[Mel Chen <mel dot chen at sifive dot com>]

This patch sets floating-point CSR-access pseudoinstructions to aliases.

           opcodes/
            * riscv-opc.c (riscv_opcodes): Set floating-point CSR-access
            instructions to alias instructions.

            Set frsr, fssr, frcsr, fscsr, frrm, fsrm, fsrmi, frflags,
            fsflags, fsflagsi to alias instructions.

            gas/
            * testsuite/gas/riscv/alias-csr.s: Add testcase for CSR-access
            alias instructions.
            * testsuite/gas/riscv/no-aliases-csr.d: Run testcase alias-csr.s
            with -Mno-aliases.

Attachment: 0001-RISC-V-Set-floating-point-CSR-access-instructions-to.patch
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