x86: Expand Broadcast to 3 bits

Expand Broadcast to 3 bits so that the number of bytes to broadcast
can be computed as 1 << (Broadcast - 1).  Use it to simplify x86
assembler.

gas/

	* config/tc-i386.c (Broadcast_Operation): Add bytes.
	(build_evex_prefix): Use i.broadcast->bytes.
	(match_broadcast_size): New function.
	(check_VecOperands): Use the broadcast field to compute the
	number of bytes to broadcast directly.  Set i.broadcast->bytes.
	Use match_broadcast_size.

opcodes/

	* i386-gen.c (adjust_broadcast_modifier): New function.
	(process_i386_opcode_modifier): Add an argument for operands.
	Adjust the Broadcast value based on operands.
	(output_i386_opcode): Pass operand_types to
	process_i386_opcode_modifier.
	(process_i386_opcodes): Pass NULL as operands to
	process_i386_opcode_modifier.
	* i386-opc.h (BYTE_BROADCAST): New.
	(WORD_BROADCAST): Likewise.
	(DWORD_BROADCAST): Likewise.
	(QWORD_BROADCAST): Likewise.
	(i386_opcode_modifier): Expand broadcast to 3 bits.
	* i386-tbl.h: Regenerated.

1 files changed, 12 insertions, 1 deletions

diff --git a/opcodes/i386-opc.h b/opcodes/i386-opc.h
index cb7875d..25d8d27 100644
--- a/opcodes/i386-opc.h
+++ b/opcodes/i386-opc.h
@@ -561,6 +561,17 @@ enum
 #define BOTH_MASKING    3
   Masking,
 
+  /* AVX512 broadcast support.  The number of bytes to broadcast is
+     1 << (Broadcast - 1):
+	1: Byte broadcast.
+	2: Word broadcast.
+	3: Dword broadcast.
+	4: Qword broadcast.
+   */
+#define BYTE_BROADCAST	1
+#define WORD_BROADCAST	2
+#define DWORD_BROADCAST	3
+#define QWORD_BROADCAST	4
   Broadcast,
 
   /* Static rounding control is supported.  */
@@ -650,7 +661,7 @@ typedef struct i386_opcode_modifier
   unsigned int noavx:1;
   unsigned int evex:3;
   unsigned int masking:2;
-  unsigned int broadcast:1;
+  unsigned int broadcast:3;
   unsigned int staticrounding:1;
   unsigned int sae:1;
   unsigned int disp8memshift:3;