[PATCH 0/3] RISC-V: Zfinx extension support

[jiawei]

This patch is support zfinx extension on binutils, zfinx is not compatible with any float extension and use gpr replace fpr, we adjust the opreand set when zfinx used. For disassemble part, we add a flag ZFINX(0x10) as ELF-header to distinguish whether use gpr or fpr name for float instructions.

jiawei (3):
  RISC-V: Add mininal support for z[fdq]inx
  RISC-V: Add instructions and operand set for z[fdq]inx
  RISC-V: Add testcases and disassemble support for z[fdq]inx

 bfd/elfxx-riscv.c               |  32 +++++++
 binutils/readelf.c              |   3 +
 gas/config/tc-riscv.c           |  33 +++++++-
 gas/testsuite/gas/riscv/zdinx.d |  41 +++++++++
 gas/testsuite/gas/riscv/zdinx.s |  33 ++++++++
 gas/testsuite/gas/riscv/zfinx.d |  39 +++++++++
 gas/testsuite/gas/riscv/zfinx.s |  31 +++++++
 gas/testsuite/gas/riscv/zqinx.d |  43 ++++++++++
 gas/testsuite/gas/riscv/zqinx.s |  35 ++++++++
 include/elf/riscv.h             |   3 +
 include/opcode/riscv.h          |   3 +
 opcodes/riscv-dis.c             |   4 +
 opcodes/riscv-opc.c             | 146 ++++++++++++++++++++++++++++++++
 13 files changed, 443 insertions(+), 3 deletions(-)
 create mode 100644 gas/testsuite/gas/riscv/zdinx.d
 create mode 100644 gas/testsuite/gas/riscv/zdinx.s
 create mode 100644 gas/testsuite/gas/riscv/zfinx.d
 create mode 100644 gas/testsuite/gas/riscv/zfinx.s
 create mode 100644 gas/testsuite/gas/riscv/zqinx.d
 create mode 100644 gas/testsuite/gas/riscv/zqinx.s