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opcodes/arc: Support dmb instruction with no operands

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In this GCC commit:
  https://gcc.gnu.org/ml/gcc-patches/2015-12/msg00735.html
GCC started emitting dmb instructions with no operands.  The intention
was that dmb with no operands should be an alias for 'dmb 0'.

The following patch extends the arc opcodes library to support dmb with
no operands.

opcodes/ChangeLog:

	* arc-tbl.h (dmb): Add a no operand version of dmb.
This commit is contained in:
Andrew Burgess 2015-12-16 13:57:44 +00:00
parent 8e26d677a2
commit 5ba8bc973c
2 changed files with 8 additions and 0 deletions
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5
opcodes/ChangeLog
View File

@ -1,3 +1,8 @@
2015-12-31 Claudiu Zissulescu <Claudiu.Zissulescu@synopsys.com>
Andrew Burgess <andrew.burgess@embecosm.com>
* arc-tbl.h (dmb): Add a no operand version of dmb.
2015-12-24 Thomas Preud'homme <thomas.preudhomme@arm.com>
* arm-dis.c (arm_opcodes): Guard movw, movt cbz, cbnz, clrex, ldrex,

3
opcodes/arc-tbl.h
View File

@ -4423,6 +4423,9 @@
/* dmb u3 00100011011011110001RRRuuu111111. */
{ "dmb", 0x236F103F, 0xFFFFF03F, ARC_OPCODE_ARCv2HS, CONTROL, NONE, { UIMM3_23 }, { 0 }},
/* dmb 00100011011011110001RRR000111111. */
{ "dmb", 0x236F103F, 0xFFFFFFFF, ARC_OPCODE_ARCv2HS, CONTROL, NONE, { 0 }, { 0 }},
/* dmpyh<.f> a,b,c 00101bbb00010000FBBBCCCCCCAAAAAA. */
{ "dmpyh", 0x28100000, 0xF8FF0000, ARC_OPCODE_ARCv2EM | ARC_OPCODE_ARCv2HS, ARITH, MPY7E, { RA, RB, RC }, { C_F }},