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[PATCH 1/57][Arm][GAS]: Add support for +mve and +mve.fp

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bfd/ChangeLog:
2019-05-16  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* elf32-arm.c (elf32_arm_merge_eabi_attributes): Add case for Tag_MVE_arch.

binutils/ChangeLog:
2019-05-16  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* readelf.c (arm_attr_tag_MVE_arch): New array for Tag_MVE_arch values.
	(arm_attr_public_tag arm_attr_public_tags): Add case for Tag_MVE_arch.

elfcpp/ChangeLog:
2019-05-16  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* arm.h (Tag_MVE_arch): Define new enum value.

gas/ChangeLog:
2019-05-16  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/tc-arm.c (mve_ext, mve_fp_ext): New features.
	(armv8_1m_main_ext_table): Add new extensions.
	(aeabi_set_public_attributes): Translate new features to new build attributes.
	(arm_convert_symbolic_attribute): Add Tag_MVE_arch.
	* doc/c-arm.texi: Document new extensions and new build attribute.

include/ChangeLog:
2019-05-16  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* elf/arm.h (Tag_MVE_arch): Define new enum value.
	* opcode/arm.h (FPU_MVE, FPU_MVE_FP): New MACROs for new features.
This commit is contained in:
Andre Vieira 2019-05-15 16:44:57 +01:00
parent a2699ef206
commit a7ad558c37
12 changed files with 57 additions and 1 deletions
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4
bfd/ChangeLog
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@ -1,3 +1,7 @@
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* elf32-arm.c (elf32_arm_merge_eabi_attributes): Add case for Tag_MVE_arch.
2019-05-16 Alan Modra <amodra@gmail.com>
* elf32-arm.c (elf32_arm_write_section): Revert last change.

1
bfd/elf32-arm.c
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@ -14713,6 +14713,7 @@ elf32_arm_merge_eabi_attributes (bfd *ibfd, struct bfd_link_info *info)
case Tag_CPU_unaligned_access:
case Tag_T2EE_use:
case Tag_MPextension_use:
case Tag_MVE_arch:
/* Use the largest value specified. */
if (in_attr[i].i > out_attr[i].i)
out_attr[i].i = in_attr[i].i;

5
binutils/ChangeLog
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@ -1,3 +1,8 @@
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* readelf.c (arm_attr_tag_MVE_arch): New array for Tag_MVE_arch values.
(arm_attr_public_tag arm_attr_public_tags): Add case for Tag_MVE_arch.
2019-05-14 Jamey Hicks <jamey.hicks@gmail.com>
PR 19921

4
binutils/readelf.c
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@ -14434,6 +14434,9 @@ static const char * arm_attr_tag_Virtualization_use[] =
static const char * arm_attr_tag_MPextension_use_legacy[] =
{"Not Allowed", "Allowed"};
static const char * arm_attr_tag_MVE_arch[] =
{"No MVE", "MVE Integer only", "MVE Integer and FP"};
#define LOOKUP(id, name) \
{id, #name, 0x80 | ARRAY_SIZE(arm_attr_tag_##name), arm_attr_tag_##name}
static arm_attr_public_tag arm_attr_public_tags[] =
@ -14473,6 +14476,7 @@ static arm_attr_public_tag arm_attr_public_tags[] =
LOOKUP(42, MPextension_use),
LOOKUP(44, DIV_use),
LOOKUP(46, DSP_extension),
LOOKUP(48, MVE_arch),
{64, "nodefaults", 0, NULL},
{65, "also_compatible_with", 0, NULL},
LOOKUP(66, T2EE_use),

4
elfcpp/ChangeLog
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@ -1,3 +1,7 @@
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* arm.h (Tag_MVE_arch): Define new enum value.
2019-04-15 Sudakshina Das <sudi.das@arm.com>
* arm.h (R_ARM_THM_BF12): New relocation code.

1
elfcpp/arm.h
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@ -305,6 +305,7 @@ enum
Tag_MPextension_use = 42,
Tag_undefined43 = 43,
Tag_DIV_use = 44,
Tag_MVE_arch = 48,
Tag_nodefaults = 64,
Tag_also_compatible_with = 65,
Tag_T2EE_use = 66,

8
gas/ChangeLog
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@ -1,3 +1,11 @@
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* config/tc-arm.c (mve_ext, mve_fp_ext): New features.
(armv8_1m_main_ext_table): Add new extensions.
(aeabi_set_public_attributes): Translate new features to new build attributes.
(arm_convert_symbolic_attribute): Add Tag_MVE_arch.
* doc/c-arm.texi: Document new extensions and new build attribute.
2019-05-15 John Darrington <john@darrington.wattle.id.au>
* config/tc-s12z.c (register_prefix): New variable. (md_show_usage,

16
gas/config/tc-arm.c
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@ -302,6 +302,10 @@ static const arm_feature_set fpu_neon_ext_v1 =
ARM_FEATURE_COPROC (FPU_NEON_EXT_V1);
static const arm_feature_set fpu_vfp_v3_or_neon_ext =
ARM_FEATURE_COPROC (FPU_NEON_EXT_V1 | FPU_VFP_EXT_V3);
static const arm_feature_set mve_ext =
ARM_FEATURE_COPROC (FPU_MVE);
static const arm_feature_set mve_fp_ext =
ARM_FEATURE_COPROC (FPU_MVE_FP);
#ifdef OBJ_ELF
static const arm_feature_set fpu_vfp_fp16 =
ARM_FEATURE_COPROC (FPU_VFP_EXT_FP16);
@ -27248,6 +27252,12 @@ static const struct arm_ext_table armv8_1m_main_ext_table[] =
ARM_ADD ("fp.dp",
ARM_FEATURE (0, ARM_EXT2_FP16_INST,
FPU_VFP_V5D16 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)),
ARM_EXT ("mve", ARM_FEATURE_COPROC (FPU_MVE),
ARM_FEATURE_COPROC (FPU_MVE | FPU_MVE_FP)),
ARM_ADD ("mve.fp",
ARM_FEATURE (0, ARM_EXT2_FP16_INST,
FPU_MVE | FPU_MVE_FP | FPU_VFP_V5_SP_D16 |
FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)),
{ NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
};
@ -28425,6 +28435,11 @@ aeabi_set_public_attributes (void)
}
}
if (ARM_CPU_HAS_FEATURE (flags, mve_fp_ext))
aeabi_set_attribute_int (Tag_MVE_arch, 2);
else if (ARM_CPU_HAS_FEATURE (flags, mve_ext))
aeabi_set_attribute_int (Tag_MVE_arch, 1);
/* Tag_VFP_HP_extension (formerly Tag_NEON_FP16_arch). */
if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_fp16) && fp16_optional)
aeabi_set_attribute_int (Tag_VFP_HP_extension, 1);
@ -28766,6 +28781,7 @@ arm_convert_symbolic_attribute (const char *name)
T (Tag_T2EE_use),
T (Tag_Virtualization_use),
T (Tag_DSP_extension),
T (Tag_MVE_arch),
/* We deliberately do not include Tag_MPextension_use_legacy. */
#undef T
};

7
gas/doc/c-arm.texi
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@ -363,8 +363,13 @@ For @code{armv8.1-m.main}:
for Armv8.1-M Mainline with 16 double-word registers.
@code{+fp.dp}: Enables double precision scalar Floating Point Extensions for
Armv8.1-M Mainline, implies @code{+fp}.
@code{+mve}: Enables integer only M-profile Vector Extension for
Armv8.1-M Mainline, implies @code{+dsp}.
@code{+mve.fp}: Enables Floating Point M-profile Vector Extension for
Armv8.1-M Mainline, implies @code{+mve} and @code{+fp}.
@code{+nofp}: Disables all FPU instructions.
@code{+nodsp}: Disables DSP Extension.
@code{+nomve}: Disables all M-profile Vector Extensions.
For @code{armv8-a}:
@ -891,7 +896,7 @@ The @var{tag} is either an attribute number, or one of the following:
@code{Tag_CPU_raw_name}, @code{Tag_CPU_name}, @code{Tag_CPU_arch},
@code{Tag_CPU_arch_profile}, @code{Tag_ARM_ISA_use},
@code{Tag_THUMB_ISA_use}, @code{Tag_FP_arch}, @code{Tag_WMMX_arch},
@code{Tag_Advanced_SIMD_arch}, @code{Tag_PCS_config},
@code{Tag_Advanced_SIMD_arch}, @code{Tag_MVE_arch}, @code{Tag_PCS_config},
@code{Tag_ABI_PCS_R9_use}, @code{Tag_ABI_PCS_RW_data},
@code{Tag_ABI_PCS_RO_data}, @code{Tag_ABI_PCS_GOT_use},
@code{Tag_ABI_PCS_wchar_t}, @code{Tag_ABI_FP_rounding},

5
include/ChangeLog
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@ -1,3 +1,8 @@
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* elf/arm.h (Tag_MVE_arch): Define new enum value.
* opcode/arm.h (FPU_MVE, FPU_MVE_FP): New MACROs for new features.
2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
* opcode/aarch64.h (enum aarch64_opnd): New SVE_SHLIMM_UNPRED_22

1
include/elf/arm.h
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@ -326,6 +326,7 @@ enum
Tag_undefined_43,
Tag_DIV_use,
Tag_DSP_extension = 46,
Tag_MVE_arch = 48,
Tag_nodefaults = 64,
Tag_also_compatible_with,
Tag_T2EE_use,

2
include/opcode/arm.h
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@ -103,6 +103,8 @@
#define FPU_VFP_EXT_ARMV8xD 0x00002000 /* Single-precision FP for ARMv8. */
#define FPU_NEON_EXT_RDMA 0x00001000 /* v8.1 Adv.SIMD extensions. */
#define FPU_NEON_EXT_DOTPROD 0x00000800 /* Dot Product extension. */
#define FPU_MVE 0x00000400 /* MVE Integer extension. */
#define FPU_MVE_FP 0x00000200 /* MVE Floating Point extension. */
/* Architectures are the sum of the base and extensions. The ARM ARM (rev E)
defines the following: ARMv3, ARMv3M, ARMv4xM, ARMv4, ARMv4TxM, ARMv4T,