コミット: be6a24d8eabdbeef32a9d79e81307af4491fcf56 - binutils_os216 (git)

GNU Binutils with patches for OS216

コミットメタ情報

• リビジョン: be6a24d8eabdbeef32a9d79e81307af4491fcf56 (tree)
• 日時: 2017-04-26 00:07:00
• 作者: Claudiu Zissulescu <claziss@syno...>
• コミッター: claziss

ログメッセージ

[ARC] Prefer NOP instead of MOV 0,0

NOP and MOV 0,0 are having the same encoding. As MOV mnemonic is
located before NOP in the instruction table, the disassembler prints
MOV 0,0 for NOP. Reorder the instructions such that NOP is first.

gas/
2017-04-25 Claudiu Zissulescu <[e-mail]>

* testsuite/gas/arc/b.d: Update test.
* testsuite/gas/arc/noargs_hs.d: Likewise.

opcode/
2017-04-25 Claudiu Zissulescu <[e-mail]>

* arc-tbl.h: Reorder NOP entry to be before MOV instructions.

変更サマリ

• modified: gas/ChangeLog
• modified: gas/testsuite/gas/arc/b.d
• modified: gas/testsuite/gas/arc/noargs_hs.d
• modified: opcodes/ChangeLog
• modified: opcodes/arc-tbl.h

差分

--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
[phone]  Claudiu Zissulescu  <[e-mail]>
+
+	* testsuite/gas/arc/b.d: Update test.
+	* testsuite/gas/arc/noargs_hs.d: Likewise.
+
 2017-04-25  Maciej W. Rozycki  <[e-mail]>
 
 	* config/tc-mips.c (md_convert_frag): Correct

--- a/gas/testsuite/gas/arc/b.d
+++ b/gas/testsuite/gas/arc/b.d
@@ -35,12 +35,12 @@ Disassembly of section .text:
   68:	0798 ffce           	bls	-104
   6c:	0794 ffcf           	bpnz	-108
   70:	0791 ffef           	b.d	0 <text_label>
-  74:	264a 7000           	mov	0,0
+  74:	264a 7000           	nop
   78:	0789 ffcf           	b	0 <text_label>
   7c:	0785 ffef           	b.d	0 <text_label>
-  80:	264a 7000           	mov	0,0
+  80:	264a 7000           	nop
   84:	077c ffe1           	beq.d	-132
-  88:	264a 7000           	mov	0,0
+  88:	264a 7000           	nop
   8c:	0774 ffc2           	bne	-140
   90:	0770 ffe6           	bnc.d	-144
-  94:	264a 7000           	mov	0,0
+  94:	264a 7000           	nop

--- a/gas/testsuite/gas/arc/noargs_hs.d
+++ b/gas/testsuite/gas/arc/noargs_hs.d
@@ -14,7 +14,7 @@ Disassembly of section .text:
    e:	246f 003f           	rtie
   12:	216f 003f           	sleep	0
   16:	226f 103f           	dsync
-  1a:	264a 7000           	mov	0,0
+  1a:	264a 7000           	nop
   1e:	78e0                	nop_s
   20:	256f 003f           	brk
   24:	236f 003f           	sync

--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,7 @@
[phone]  Claudiu Zissulescu  <[e-mail]>
+
+	* arc-tbl.h: Reorder NOP entry to be before MOV instructions.
+
 2017-04-25  Maciej W. Rozycki  <[e-mail]>
 
 	* mips-dis.c (print_mips_disassembler_options): Add

--- a/opcodes/arc-tbl.h
+++ b/opcodes/arc-tbl.h
@@ -10113,6 +10113,9 @@
 /* minidl<.f><.cc> 0,limm,limm 0010111011001001F1111111100QQQQQ.  */
 { "minidl", 0x2EC97F80, 0xFFFF7FE0, ARC_OPCODE_ARC600, DSP, NONE, { ZA, LIMM, LIMMdup }, { C_F, C_CC }},
 
+/* nop  00100110010010100111000000000000.  */
+{ "nop", 0x264A7000, 0xFFFFFFFF, ARC_OPCODE_ARC600 | ARC_OPCODE_ARC700 | ARC_OPCODE_ARCv2EM | ARC_OPCODE_ARCv2HS, CONTROL, NONE, { 0 }, { 0 }},
+
 /* mov<.f> b,c 00100bbb00001010FBBBCCCCCCRRRRRR.  */
 { "mov", 0x200A0000, 0xF8FF0000, ARC_OPCODE_ARC600 | ARC_OPCODE_ARC700 | ARC_OPCODE_ARCv2EM | ARC_OPCODE_ARCv2HS, MOVE, NONE, { RB, RC }, { C_F }},
 
@@ -12702,9 +12705,6 @@
 /* neg_s b,c 01111bbbccc10011.  */
 { "neg_s", 0x00007813, 0x0000F81F, ARC_OPCODE_ARC600 | ARC_OPCODE_ARC700 | ARC_OPCODE_ARCv2EM | ARC_OPCODE_ARCv2HS, ARITH, NONE, { RB_S, RC_S }, { 0 }},
 
-/* nop  00100110010010100111000000000000.  */
-{ "nop", 0x264A7000, 0xFFFFFFFF, ARC_OPCODE_ARC600 | ARC_OPCODE_ARC700 | ARC_OPCODE_ARCv2EM | ARC_OPCODE_ARCv2HS, CONTROL, NONE, { 0 }, { 0 }},
-
 /* nop_s  0111100011100000.  */
 { "nop_s", 0x000078E0, 0x0000FFFF, ARC_OPCODE_ARC600 | ARC_OPCODE_ARC700 | ARC_OPCODE_ARCv2EM | ARC_OPCODE_ARCv2HS, CONTROL, NONE, { 0 }, { 0 }},