RISC-V: Add support for Zimop extension

This implements the Zimop (May-Be-Operations) extension, as of version 1.0.

View detailed information in:
<https://github.com/riscv/riscv-isa-manual/blob/main/src/zimop.adoc>

bfd/ChangeLog:

	* elfxx-riscv.c (riscv_multi_subset_supports): Handle Zimop
	(riscv_multi_subset_supports_ext): Ditto.

gas/ChangeLog:

	* NEWS: Updated.
	* testsuite/gas/riscv/march-help.l: Ditto.
	* testsuite/gas/riscv/zimop.d: New test.
	* testsuite/gas/riscv/zimop.s: New test.

include/ChangeLog:

	* opcode/riscv-opc.h (DECLARE_INSN): New declarations for Zimop.
	(MATCH_MOP_R_0, MATCH_MOP_R_1, MATCH_MOP_R_2, MATCH_MOP_R_3,
	MATCH_MOP_R_4, MATCH_MOP_R_5, MATCH_MOP_R_6, MATCH_MOP_R_7,
	MATCH_MOP_R_8, MATCH_MOP_R_9, MATCH_MOP_R_10, MATCH_MOP_R_11,
	MATCH_MOP_R_12, MATCH_MOP_R_13, MATCH_MOP_R_14, MATCH_MOP_R_15,
	MATCH_MOP_R_16, MATCH_MOP_R_17, MATCH_MOP_R_18, MATCH_MOP_R_19,
	MATCH_MOP_R_20, MATCH_MOP_R_21, MATCH_MOP_R_22, MATCH_MOP_R_23,
	MATCH_MOP_R_24, MATCH_MOP_R_25, MATCH_MOP_R_26, MATCH_MOP_R_27,
	MATCH_MOP_R_28, MATCH_MOP_R_29, MATCH_MOP_R_30, MATCH_MOP_R_31,
	MATCH_MOP_RR_0, MATCH_MOP_RR_1, MATCH_MOP_RR_2, MATCH_MOP_RR_3,
	MATCH_MOP_RR_4, MATCH_MOP_RR_5, MATCH_MOP_RR_6, MATCH_MOP_RR_7): Define.
	(MASK_MOP_R_0, MASK_MOP_R_1, MASK_MOP_R_2, MASK_MOP_R_3, MASK_MOP_R_4,
	MASK_MOP_R_5, MASK_MOP_R_6, MASK_MOP_R_7, MASK_MOP_R_8, MASK_MOP_R_9,
	MASK_MOP_R_10, MASK_MOP_R_11, MASK_MOP_R_12, MASK_MOP_R_13,
	MASK_MOP_R_14, MASK_MOP_R_15, MASK_MOP_R_16, MASK_MOP_R_17,
	MASK_MOP_R_18, MASK_MOP_R_19, MASK_MOP_R_20, MASK_MOP_R_21,
	MASK_MOP_R_22, MASK_MOP_R_23, MASK_MOP_R_24, MASK_MOP_R_25,
	MASK_MOP_R_26, MASK_MOP_R_27, MASK_MOP_R_28, MASK_MOP_R_29,
	MASK_MOP_R_30, MASK_MOP_R_31, MASK_MOP_RR_0, MASK_MOP_RR_1,
	MASK_MOP_RR_2, MASK_MOP_RR_3, MASK_MOP_RR_4, MASK_MOP_RR_5,
	MASK_MOP_RR_6, MASK_MOP_RR_7): Ditto.
	* opcode/riscv.h (enum riscv_insn_class): Add INSN_CLASS_ZIMOP.

opcodes/ChangeLog:

	* riscv-opc.c: Add Zimop instructions.

2 files changed, 123 insertions, 0 deletions

diff --git a/include/opcode/riscv-opc.h b/include/opcode/riscv-opc.h
index f0e1d99..9ef9c6f 100644
--- a/include/opcode/riscv-opc.h
+++ b/include/opcode/riscv-opc.h
@@ -2364,6 +2364,87 @@
 #define MASK_C_NTL_S1 0xffff
 #define MATCH_C_NTL_ALL 0x9016
 #define MASK_C_NTL_ALL 0xffff
+/* Zimop instructions.  */
+#define MATCH_MOP_R_0 0x81c04073
+#define MASK_MOP_R_0 0xfff0707f
+#define MATCH_MOP_R_1 0x81d04073
+#define MASK_MOP_R_1 0xfff0707f
+#define MATCH_MOP_R_2 0x81e04073
+#define MASK_MOP_R_2 0xfff0707f
+#define MATCH_MOP_R_3 0x81f04073
+#define MASK_MOP_R_3 0xfff0707f
+#define MATCH_MOP_R_4 0x85c04073
+#define MASK_MOP_R_4 0xfff0707f
+#define MATCH_MOP_R_5 0x85d04073
+#define MASK_MOP_R_5 0xfff0707f
+#define MATCH_MOP_R_6 0x85e04073
+#define MASK_MOP_R_6 0xfff0707f
+#define MATCH_MOP_R_7 0x85f04073
+#define MASK_MOP_R_7 0xfff0707f
+#define MATCH_MOP_R_8 0x89c04073
+#define MASK_MOP_R_8 0xfff0707f
+#define MATCH_MOP_R_9 0x89d04073
+#define MASK_MOP_R_9 0xfff0707f
+#define MATCH_MOP_R_10 0x89e04073
+#define MASK_MOP_R_10 0xfff0707f
+#define MATCH_MOP_R_11 0x89f04073
+#define MASK_MOP_R_11 0xfff0707f
+#define MATCH_MOP_R_12 0x8dc04073
+#define MASK_MOP_R_12 0xfff0707f
+#define MATCH_MOP_R_13 0x8dd04073
+#define MASK_MOP_R_13 0xfff0707f
+#define MATCH_MOP_R_14 0x8de04073
+#define MASK_MOP_R_14 0xfff0707f
+#define MATCH_MOP_R_15 0x8df04073
+#define MASK_MOP_R_15 0xfff0707f
+#define MATCH_MOP_R_16 0xc1c04073
+#define MASK_MOP_R_16 0xfff0707f
+#define MATCH_MOP_R_17 0xc1d04073
+#define MASK_MOP_R_17 0xfff0707f
+#define MATCH_MOP_R_18 0xc1e04073
+#define MASK_MOP_R_18 0xfff0707f
+#define MATCH_MOP_R_19 0xc1f04073
+#define MASK_MOP_R_19 0xfff0707f
+#define MATCH_MOP_R_20 0xc5c04073
+#define MASK_MOP_R_20 0xfff0707f
+#define MATCH_MOP_R_21 0xc5d04073
+#define MASK_MOP_R_21 0xfff0707f
+#define MATCH_MOP_R_22 0xc5e04073
+#define MASK_MOP_R_22 0xfff0707f
+#define MATCH_MOP_R_23 0xc5f04073
+#define MASK_MOP_R_23 0xfff0707f
+#define MATCH_MOP_R_24 0xc9c04073
+#define MASK_MOP_R_24 0xfff0707f
+#define MATCH_MOP_R_25 0xc9d04073
+#define MASK_MOP_R_25 0xfff0707f
+#define MATCH_MOP_R_26 0xc9e04073
+#define MASK_MOP_R_26 0xfff0707f
+#define MATCH_MOP_R_27 0xc9f04073
+#define MASK_MOP_R_27 0xfff0707f
+#define MATCH_MOP_R_28 0xcdc04073
+#define MASK_MOP_R_28 0xfff0707f
+#define MATCH_MOP_R_29 0xcdd04073
+#define MASK_MOP_R_29 0xfff0707f
+#define MATCH_MOP_R_30 0xcde04073
+#define MASK_MOP_R_30 0xfff0707f
+#define MATCH_MOP_R_31 0xcdf04073
+#define MASK_MOP_R_31 0xfff0707f
+#define MATCH_MOP_RR_0 0x82004073
+#define MASK_MOP_RR_0 0xfe00707f
+#define MATCH_MOP_RR_1 0x86004073
+#define MASK_MOP_RR_1 0xfe00707f
+#define MATCH_MOP_RR_2 0x8a004073
+#define MASK_MOP_RR_2 0xfe00707f
+#define MATCH_MOP_RR_3 0x8e004073
+#define MASK_MOP_RR_3 0xfe00707f
+#define MATCH_MOP_RR_4 0xc2004073
+#define MASK_MOP_RR_4 0xfe00707f
+#define MATCH_MOP_RR_5 0xc6004073
+#define MASK_MOP_RR_5 0xfe00707f
+#define MATCH_MOP_RR_6 0xca004073
+#define MASK_MOP_RR_6 0xfe00707f
+#define MATCH_MOP_RR_7 0xce004073
+#define MASK_MOP_RR_7 0xfe00707f
 /* Zacas instructions.  */
 #define MATCH_AMOCAS_W 0x2800202f
 #define MASK_AMOCAS_W 0xf800707f
@@ -4014,6 +4095,47 @@ DECLARE_INSN(c_ntl_p1, MATCH_C_NTL_P1, MASK_C_NTL_P1)
 DECLARE_INSN(c_ntl_pall, MATCH_C_NTL_PALL, MASK_C_NTL_PALL)
 DECLARE_INSN(c_ntl_s1, MATCH_C_NTL_S1, MASK_C_NTL_S1)
 DECLARE_INSN(c_ntl_all, MATCH_C_NTL_ALL, MASK_C_NTL_ALL)
+/* Zimop instructions.  */
+DECLARE_INSN(MOP_R_0, MATCH_MOP_R_0, MASK_MOP_R_0)
+DECLARE_INSN(MOP_R_1, MATCH_MOP_R_1, MASK_MOP_R_1)
+DECLARE_INSN(MOP_R_2, MATCH_MOP_R_2, MASK_MOP_R_2)
+DECLARE_INSN(MOP_R_3, MATCH_MOP_R_3, MASK_MOP_R_3)
+DECLARE_INSN(MOP_R_4, MATCH_MOP_R_4, MASK_MOP_R_4)
+DECLARE_INSN(MOP_R_5, MATCH_MOP_R_5, MASK_MOP_R_5)
+DECLARE_INSN(MOP_R_6, MATCH_MOP_R_6, MASK_MOP_R_6)
+DECLARE_INSN(MOP_R_7, MATCH_MOP_R_7, MASK_MOP_R_7)
+DECLARE_INSN(MOP_R_8, MATCH_MOP_R_8, MASK_MOP_R_8)
+DECLARE_INSN(MOP_R_9, MATCH_MOP_R_9, MASK_MOP_R_9)
+DECLARE_INSN(MOP_R_10, MATCH_MOP_R_10, MASK_MOP_R_10)
+DECLARE_INSN(MOP_R_11, MATCH_MOP_R_11, MASK_MOP_R_11)
+DECLARE_INSN(MOP_R_12, MATCH_MOP_R_12, MASK_MOP_R_12)
+DECLARE_INSN(MOP_R_13, MATCH_MOP_R_13, MASK_MOP_R_13)
+DECLARE_INSN(MOP_R_14, MATCH_MOP_R_14, MASK_MOP_R_14)
+DECLARE_INSN(MOP_R_15, MATCH_MOP_R_15, MASK_MOP_R_15)
+DECLARE_INSN(MOP_R_16, MATCH_MOP_R_16, MASK_MOP_R_16)
+DECLARE_INSN(MOP_R_17, MATCH_MOP_R_17, MASK_MOP_R_17)
+DECLARE_INSN(MOP_R_18, MATCH_MOP_R_18, MASK_MOP_R_18)
+DECLARE_INSN(MOP_R_19, MATCH_MOP_R_19, MASK_MOP_R_19)
+DECLARE_INSN(MOP_R_20, MATCH_MOP_R_20, MASK_MOP_R_20)
+DECLARE_INSN(MOP_R_21, MATCH_MOP_R_21, MASK_MOP_R_21)
+DECLARE_INSN(MOP_R_22, MATCH_MOP_R_22, MASK_MOP_R_22)
+DECLARE_INSN(MOP_R_23, MATCH_MOP_R_23, MASK_MOP_R_23)
+DECLARE_INSN(MOP_R_24, MATCH_MOP_R_24, MASK_MOP_R_24)
+DECLARE_INSN(MOP_R_25, MATCH_MOP_R_25, MASK_MOP_R_25)
+DECLARE_INSN(MOP_R_26, MATCH_MOP_R_26, MASK_MOP_R_26)
+DECLARE_INSN(MOP_R_27, MATCH_MOP_R_27, MASK_MOP_R_27)
+DECLARE_INSN(MOP_R_28, MATCH_MOP_R_28, MASK_MOP_R_28)
+DECLARE_INSN(MOP_R_29, MATCH_MOP_R_29, MASK_MOP_R_29)
+DECLARE_INSN(MOP_R_30, MATCH_MOP_R_30, MASK_MOP_R_30)
+DECLARE_INSN(MOP_R_31, MATCH_MOP_R_31, MASK_MOP_R_31)
+DECLARE_INSN(MOP_RR_0, MATCH_MOP_RR_0, MASK_MOP_RR_0)
+DECLARE_INSN(MOP_RR_1, MATCH_MOP_RR_1, MASK_MOP_RR_1)
+DECLARE_INSN(MOP_RR_2, MATCH_MOP_RR_2, MASK_MOP_RR_2)
+DECLARE_INSN(MOP_RR_3, MATCH_MOP_RR_3, MASK_MOP_RR_3)
+DECLARE_INSN(MOP_RR_4, MATCH_MOP_RR_4, MASK_MOP_RR_4)
+DECLARE_INSN(MOP_RR_5, MATCH_MOP_RR_5, MASK_MOP_RR_5)
+DECLARE_INSN(MOP_RR_6, MATCH_MOP_RR_6, MASK_MOP_RR_6)
+DECLARE_INSN(MOP_RR_7, MATCH_MOP_RR_7, MASK_MOP_RR_7)
 /* Zacas instructions.  */
 DECLARE_INSN(amocas_w, MATCH_AMOCAS_W, MASK_AMOCAS_W)
 DECLARE_INSN(amocas_d, MATCH_AMOCAS_D, MASK_AMOCAS_D)
diff --git a/include/opcode/riscv.h b/include/opcode/riscv.h
index fedd478..6793d99 100644
--- a/include/opcode/riscv.h
+++ b/include/opcode/riscv.h
@@ -437,6 +437,7 @@ enum riscv_insn_class
   INSN_CLASS_ZIHINTNTL,
   INSN_CLASS_ZIHINTNTL_AND_C,
   INSN_CLASS_ZIHINTPAUSE,
+  INSN_CLASS_ZIMOP,
   INSN_CLASS_ZMMUL,
   INSN_CLASS_ZAAMO,
   INSN_CLASS_ZALRSC,