[ARC] Provide an interface to decode ARC instructions.

gas/
2017-02-06  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/tc-arc.c (parse_opcode_flags): Ignore implicit flags.

include/
2017-02-06  Claudiu Zissulescu  <claziss@synopsys.com>
	    Anton Kolesov  <anton.kolesov@synopsys.com>

	* opcode/arc.h (insn_class_t): Add ENTER, LEAVE, POP, PUSH, BBIT0,
	BBIT1, BI, BIH, BRCC, EI, JLI, and SUB instruction classes.
	(flag_class_t): Add F_CLASS_WB, F_CLASS_ZZ, and F_CLASS_IMPLICIT
	flag classes.

opcode/
2017-02-06  Claudiu Zissulescu  <claziss@synopsys.com>
	    Anton Kolesov  <anton.kolesov@synopsys.com>

	* arc-dis.c (arc_disassemble_info): New structure.
	(init_arc_disasm_info): New function.
	(find_format_from_table): Ignore implicit flags.
	(find_format): Update dissassembler private data.
	(print_flags): Likewise.
	(print_insn_arc): Likewise.
	(arc_opcode_to_insn_type): Consider the new added instruction
	classes.
	(arcAnalyzeInstr): Remove.
	(arc_insn_decode): New function.
	* arc-dis.h (arc_ldst_writeback_mode): New enum.
	(arc_ldst_data_size): Likewise.
	(arc_condition_code): Likewise.
	(arc_operand_kind): Likewise.
	(arc_insn_kind): New struct.
	(arc_instruction): Likewise.
	(arc_insn_decode): Declare function.
	(ARC_Debugger_OperandType): Deleted.
	(Flow): Likewise.
	(NullifyMode): Likewise.
	(allOperandsSize): Likewise.
	(arcDisState): Likewise.
	(arcAnalyzeInstr): Likewise.
	* arc-dis.c (arc_opcode_to_insn_type): Handle newly introduced
	insn_class_t enums.
	* arc-opc.c (F_SIZED): New define.
	(C_CC_EQ, C_CC_GE, C_CC_GT, C_CC_HI, C_CC_HS): Likewise.
	(C_CC_LE, C_CC_LO, C_CC_LS, C_CC_LT, C_CC_NE): Likewise.
	(C_CC_NE, C_AA_AB, C_AA_AW, C_ZZ_D, C_ZZ_H, C_ZZ_B): Likewise.
	(arc_flag_classes): Add F_CLASS_COND/F_CLASS_IMPLICIT flags.
	* opcodes/arc-tbl.h: Update instructions to include new
	F_CLASS_IMPLICIT flags.
	(bbit0, lp): Change class.
	(bbit1, bi, bih, br*, ei_s, jli_s): Likewsie

1 files changed, 52 insertions, 5 deletions

diff --git a/opcodes/arc-opc.c b/opcodes/arc-opc.c
index b89a873..295d92f 100644
--- a/opcodes/arc-opc.c
+++ b/opcodes/arc-opc.c
@@ -1290,9 +1290,11 @@ const struct arc_flag_operand arc_flag_operands[] =
   { "h", 2, 2, 7, 1 },
 #define F_H17    (F_H7 + 1)
   { "h", 2, 2, 17, 1 },
+#define F_SIZED  (F_H17 + 1)
+  { "dd", 8, 0, 0, 0 },  /* Fake.  */
 
   /* Fake Flags.  */
-#define F_NE   (F_H17 + 1)
+#define F_NE   (F_SIZED + 1)
   { "ne", 0, 0, 0, 1 },
 
   /* ARC NPS400 Support: See comment near head of file.  */
@@ -1398,7 +1400,52 @@ const struct arc_flag_class arc_flag_classes[] =
 #define C_EMPTY     0
   { F_CLASS_NONE, { F_NULL } },
 
-#define C_CC	    (C_EMPTY + 1)
+#define C_CC_EQ     (C_EMPTY + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_EQUAL, F_NULL} },
+
+#define C_CC_GE     (C_CC_EQ + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_GE, F_NULL} },
+
+#define C_CC_GT     (C_CC_GE + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_GT, F_NULL} },
+
+#define C_CC_HI     (C_CC_GT + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_HI, F_NULL} },
+
+#define C_CC_HS     (C_CC_HI + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_NOTCARRY, F_NULL} },
+
+#define C_CC_LE     (C_CC_HS + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_LE, F_NULL} },
+
+#define C_CC_LO     (C_CC_LE + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_CARRY, F_NULL} },
+
+#define C_CC_LS     (C_CC_LO + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_LS, F_NULL} },
+
+#define C_CC_LT     (C_CC_LS + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_LT, F_NULL} },
+
+#define C_CC_NE     (C_CC_LT + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_COND, {F_NOTEQUAL, F_NULL} },
+
+#define C_AA_AB     (C_CC_NE + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_WB, {F_AB3, F_NULL} },
+
+#define C_AA_AW     (C_AA_AB + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_WB, {F_AW3, F_NULL} },
+
+#define C_ZZ_D      (C_AA_AW + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_ZZ, {F_SIZED, F_NULL} },
+
+#define C_ZZ_H      (C_ZZ_D + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_ZZ, {F_H1, F_NULL} },
+
+#define C_ZZ_B      (C_ZZ_H + 1)
+  {F_CLASS_IMPLICIT | F_CLASS_ZZ, {F_SIZEB1, F_NULL} },
+
+#define C_CC	    (C_ZZ_B + 1)
   { F_CLASS_OPTIONAL | F_CLASS_EXTEND | F_CLASS_COND,
     { F_ALWAYS, F_RA, F_EQUAL, F_ZERO, F_NOTEQUAL,
       F_NOTZERO, F_POZITIVE, F_PL, F_NEGATIVE, F_MINUS,
@@ -1409,13 +1456,13 @@ const struct arc_flag_class arc_flag_classes[] =
 
 #define C_AA_ADDR3  (C_CC + 1)
 #define C_AA27	    (C_CC + 1)
-  { F_CLASS_OPTIONAL, { F_A3, F_AW3, F_AB3, F_AS3, F_NULL } },
+  { F_CLASS_OPTIONAL | F_CLASS_WB, { F_A3, F_AW3, F_AB3, F_AS3, F_NULL } },
 #define C_AA_ADDR9  (C_AA_ADDR3 + 1)
 #define C_AA21	     (C_AA_ADDR3 + 1)
-  { F_CLASS_OPTIONAL, { F_A9, F_AW9, F_AB9, F_AS9, F_NULL } },
+  { F_CLASS_OPTIONAL | F_CLASS_WB, { F_A9, F_AW9, F_AB9, F_AS9, F_NULL } },
 #define C_AA_ADDR22 (C_AA_ADDR9 + 1)
 #define C_AA8	   (C_AA_ADDR9 + 1)
-  { F_CLASS_OPTIONAL, { F_A22, F_AW22, F_AB22, F_AS22, F_NULL } },
+  { F_CLASS_OPTIONAL | F_CLASS_WB, { F_A22, F_AW22, F_AB22, F_AS22, F_NULL } },
 
 #define C_F	    (C_AA_ADDR22 + 1)
   { F_CLASS_OPTIONAL, { F_FLAG, F_NULL } },