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[ARM] Add FP16 feature extension for ARMv8.2 architecture

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include/
  * opcode/arm.h (ARM_EXT2_FP16_INSN): New.

gas/
  * config/tc-arm.c (arm_ext_fp16): New.
  (arm_extensions): New entry for "fp16".
This commit is contained in:
Jiong Wang 2016-02-19 14:27:23 +00:00
parent 3be64886b5
commit b8ec4e871e
4 changed files with 19 additions and 1 deletions
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6
gas/ChangeLog
View File

@ -1,3 +1,9 @@
2016-02-19 Matthew Wahab <matthew.wahab@arm.com>
Jiong Wang <jiong.wang@arm.com>
* config/tc-arm.c (arm_ext_fp16): New.
(arm_extensions): New entry for "fp16".
2016-02-19 Nick Clifton <nickc@redhat.com>
PR 19630

6
gas/config/tc-arm.c
View File

@ -216,6 +216,9 @@ static const arm_feature_set arm_ext_atomics =
ARM_FEATURE_CORE_HIGH (ARM_EXT2_ATOMICS);
static const arm_feature_set arm_ext_v8_2 =
ARM_FEATURE_CORE_HIGH (ARM_EXT2_V8_2A);
/* FP16 instructions. */
static const arm_feature_set arm_ext_fp16 =
ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST);
static const arm_feature_set arm_arch_any = ARM_ANY;
static const arm_feature_set arm_arch_full = ARM_FEATURE (-1, -1, -1);
@ -25068,6 +25071,9 @@ static const struct arm_option_extension_value_table arm_extensions[] =
ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
ARM_EXT_OPT ("fp", FPU_ARCH_VFP_ARMV8, ARM_FEATURE_COPROC (FPU_VFP_ARMV8),
ARM_FEATURE_CORE_LOW (ARM_EXT_V8)),
ARM_EXT_OPT ("fp16", ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
ARM_FEATURE_CORE_HIGH (ARM_EXT2_FP16_INST),
ARM_ARCH_V8_2A),
ARM_EXT_OPT ("idiv", ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV | ARM_EXT_DIV),
ARM_FEATURE_CORE_LOW (ARM_EXT_ADIV | ARM_EXT_DIV),
ARM_FEATURE_CORE_LOW (ARM_EXT_V7A | ARM_EXT_V7R)),

5
include/ChangeLog
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@ -1,3 +1,8 @@
2016-02-19 Matthew Wahab <matthew.wahab@arm.com>
Jiong Wang <jiong.wang@arm.com>
* opcode/arm.h (ARM_EXT2_FP16_INSN): New.
2016-02-10 Claudiu Zissulescu <claziss@synopsys.com>
Janek van Oirschot <jvanoirs@synopsys.com>

3
include/opcode/arm.h
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@ -52,7 +52,7 @@
#define ARM_EXT_MP 0x08000000 /* Multiprocessing Extensions. */
#define ARM_EXT_SEC 0x10000000 /* Security extensions. */
#define ARM_EXT_OS 0x20000000 /* OS Extensions. */
#define ARM_EXT_ADIV 0x40000000 /* Integer divide extensions in ARM
#define ARM_EXT_ADIV 0x40000000 /* Integer divide extensions in ARM
state. */
#define ARM_EXT_VIRT 0x80000000 /* Virtualization extensions. */
@ -61,6 +61,7 @@
#define ARM_EXT2_V8M 0x00000004 /* ARM V8M. */
#define ARM_EXT2_ATOMICS 0x00000008 /* ARMv8 atomics. */
#define ARM_EXT2_V6T2_V8M 0x00000010 /* V8M Baseline from V6T2. */
#define ARM_EXT2_FP16_INST 0x00000020 /* ARM V8.2A FP16 instructions. */
/* Co-processor space extensions. */
#define ARM_CEXT_XSCALE 0x00000001 /* Allow MIA etc. */