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[arm] Add isa features to FPU descriptions 

Similar to the new CPU and architecture ISA feature lists, we now add
similar capabilities to each FPU description.  We don't use these yet,
that will come in later patches.  These follow the same style as the
newly modified flag sets, but use slightly different defaults that
more accurately reflect the ISA specifications.

	* arm-isa.h (isa_feature): Add bits for VFPv4, FPv5, fp16conv,
	fP_dbl, fp_d32 and fp_crypto.
	(ISA_ALL_FPU): Add all the new bits.
	(ISA_VFPv2, ISA_VFPv3, ISA_VFPv4, ISA_FPv5): New macros.
	(ISA_FP_ARMv8, ISA_FP_DBL, ISA_FP_D32, ISA_NEON, ISA_CRYPTO): Likewise.
	* arm-fpus.def: Add ISA features to all FPUs.
	* arm.h: (arm_fpu_desc): Add new field for ISA bits.
	* arm.c (all_fpus): Initialize it.
	* arm-tables.opt: Regenerated.

From-SVN: r243709
This commit is contained in:
Richard Earnshaw 2016-12-15 15:54:53 +00:00 committed by Richard Earnshaw
parent c17c0c7a52
commit 066416dabc
5 changed files with 42 additions and 29 deletions
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12
gcc/ChangeLog
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@ -1,3 +1,15 @@
2016-12-15 Richard Earnshaw <rearnsha@arm.com>
* arm-isa.h (isa_feature): Add bits for VFPv4, FPv5, fp16conv,
fP_dbl, fp_d32 and fp_crypto.
(ISA_ALL_FPU): Add all the new bits.
(ISA_VFPv2, ISA_VFPv3, ISA_VFPv4, ISA_FPv5): New macros.
(ISA_FP_ARMv8, ISA_FP_DBL, ISA_FP_D32, ISA_NEON, ISA_CRYPTO): Likewise.
* arm-fpus.def: Add ISA features to all FPUs.
* arm.h: (arm_fpu_desc): Add new field for ISA bits.
* arm.c (all_fpus): Initialize it.
* arm-tables.opt: Regenerated.
2016-12-15 Richard Earnshaw <rearnsha@arm.com> 2016-12-15 Richard Earnshaw <rearnsha@arm.com>
* arm.h (FPU_FL_VFPv2) New feature bit. * arm.h (FPU_FL_VFPv2) New feature bit.

44
gcc/config/arm/arm-fpus.def
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@ -19,31 +19,31 @@
/* Before using #include to read this file, define a macro: /* Before using #include to read this file, define a macro:
ARM_FPU(NAME, FEATURES) ARM_FPU(NAME, ISA, FEATURES)
The arguments are the fields of struct arm_fpu_desc. The arguments are the fields of struct arm_fpu_desc.
genopt.sh assumes no whitespace up to the first "," in each entry. */ genopt.sh assumes no whitespace up to the first "," in each entry. */
ARM_FPU("vfp", FPU_VFPv2 | FPU_DBL) ARM_FPU("vfp", ISA_FEAT(ISA_VFPv2) ISA_FEAT(ISA_FP_DBL), FPU_VFPv2 | FPU_DBL)
ARM_FPU("vfpv2", FPU_VFPv2 | FPU_DBL) ARM_FPU("vfpv2", ISA_FEAT(ISA_VFPv2) ISA_FEAT(ISA_FP_DBL), FPU_VFPv2 | FPU_DBL)
ARM_FPU("vfpv3", FPU_VFPv3 | FPU_D32) ARM_FPU("vfpv3", ISA_FEAT(ISA_VFPv3) ISA_FEAT(ISA_FP_D32), FPU_VFPv3 | FPU_D32)
ARM_FPU("vfpv3-fp16", FPU_VFPv3 | FPU_D32 | FPU_FP16) ARM_FPU("vfpv3-fp16", ISA_FEAT(ISA_VFPv3) ISA_FEAT(ISA_FP_D32) ISA_FEAT(isa_bit_fp16conv), FPU_VFPv3 | FPU_D32 | FPU_FP16)
ARM_FPU("vfpv3-d16", FPU_VFPv3 | FPU_DBL) ARM_FPU("vfpv3-d16", ISA_FEAT(ISA_VFPv3) ISA_FEAT(ISA_FP_DBL), FPU_VFPv3 | FPU_DBL)
ARM_FPU("vfpv3-d16-fp16", FPU_VFPv3 | FPU_DBL | FPU_FP16) ARM_FPU("vfpv3-d16-fp16", ISA_FEAT(ISA_VFPv3) ISA_FEAT(ISA_FP_DBL) ISA_FEAT(isa_bit_fp16conv), FPU_VFPv3 | FPU_DBL | FPU_FP16)
ARM_FPU("vfpv3xd", FPU_VFPv3) ARM_FPU("vfpv3xd", ISA_FEAT(ISA_VFPv3), FPU_VFPv3)
ARM_FPU("vfpv3xd-fp16", FPU_VFPv3 | FPU_FP16) ARM_FPU("vfpv3xd-fp16", ISA_FEAT(ISA_VFPv3) ISA_FEAT(isa_bit_fp16conv), FPU_VFPv3 | FPU_FP16)
ARM_FPU("neon", FPU_VFPv3 | FPU_NEON) ARM_FPU("neon", ISA_FEAT(ISA_VFPv3) ISA_FEAT(ISA_NEON), FPU_VFPv3 | FPU_NEON)
ARM_FPU("neon-vfpv3", FPU_VFPv3 | FPU_NEON) ARM_FPU("neon-vfpv3", ISA_FEAT(ISA_VFPv3) ISA_FEAT(ISA_NEON), FPU_VFPv3 | FPU_NEON)
ARM_FPU("neon-fp16", FPU_VFPv3 | FPU_NEON | FPU_FP16) ARM_FPU("neon-fp16", ISA_FEAT(ISA_VFPv3) ISA_FEAT(ISA_NEON) ISA_FEAT(isa_bit_fp16conv), FPU_VFPv3 | FPU_NEON | FPU_FP16)
ARM_FPU("vfpv4", FPU_VFPv4 | FPU_D32 | FPU_FP16) ARM_FPU("vfpv4", ISA_FEAT(ISA_VFPv4) ISA_FEAT(ISA_FP_D32), FPU_VFPv4 | FPU_D32 | FPU_FP16)
ARM_FPU("vfpv4-d16", FPU_VFPv4 | FPU_DBL | FPU_FP16) ARM_FPU("neon-vfpv4", ISA_FEAT(ISA_VFPv4) ISA_FEAT(ISA_NEON), FPU_VFPv4 | FPU_NEON | FPU_FP16)
ARM_FPU("fpv4-sp-d16", FPU_VFPv4 | FPU_FP16) ARM_FPU("vfpv4-d16", ISA_FEAT(ISA_VFPv4) ISA_FEAT(ISA_FP_DBL), FPU_VFPv4 | FPU_DBL | FPU_FP16)
ARM_FPU("fpv5-sp-d16", FPU_VFPv5 | FPU_FP16) ARM_FPU("fpv4-sp-d16", ISA_FEAT(ISA_VFPv4), FPU_VFPv4 | FPU_FP16)
ARM_FPU("fpv5-d16", FPU_VFPv5 | FPU_DBL | FPU_FP16) ARM_FPU("fpv5-sp-d16", ISA_FEAT(ISA_FPv5), FPU_VFPv5 | FPU_FP16)
ARM_FPU("neon-vfpv4", FPU_VFPv4 | FPU_NEON | FPU_FP16) ARM_FPU("fpv5-d16", ISA_FEAT(ISA_FPv5) ISA_FEAT(ISA_FP_DBL), FPU_VFPv5 | FPU_DBL | FPU_FP16)
ARM_FPU("fp-armv8", FPU_ARMv8 | FPU_D32 | FPU_FP16) ARM_FPU("fp-armv8", ISA_FEAT(ISA_FP_ARMv8) ISA_FEAT(ISA_FP_D32), FPU_ARMv8 | FPU_D32 | FPU_FP16)
ARM_FPU("neon-fp-armv8", FPU_ARMv8 | FPU_NEON | FPU_FP16) ARM_FPU("neon-fp-armv8", ISA_FEAT(ISA_FP_ARMv8) ISA_FEAT(ISA_NEON), FPU_ARMv8 | FPU_NEON | FPU_FP16)
ARM_FPU("crypto-neon-fp-armv8", FPU_ARMv8 | FPU_CRYPTO | FPU_FP16) ARM_FPU("crypto-neon-fp-armv8", ISA_FEAT(ISA_FP_ARMv8) ISA_FEAT(ISA_CRYPTO), FPU_ARMv8 | FPU_CRYPTO | FPU_FP16)
/* Compatibility aliases. */ /* Compatibility aliases. */
ARM_FPU("vfp3", FPU_VFPv3 | FPU_D32) ARM_FPU("vfp3", ISA_FEAT(ISA_VFPv3) ISA_FEAT(ISA_FP_D32), FPU_VFPv3 | FPU_D32)

10
gcc/config/arm/arm-tables.opt
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@ -504,19 +504,19 @@ EnumValue
Enum(arm_fpu) String(vfpv4) Value(11) Enum(arm_fpu) String(vfpv4) Value(11)
EnumValue EnumValue
Enum(arm_fpu) String(vfpv4-d16) Value(12) Enum(arm_fpu) String(neon-vfpv4) Value(12)
EnumValue EnumValue
Enum(arm_fpu) String(fpv4-sp-d16) Value(13) Enum(arm_fpu) String(vfpv4-d16) Value(13)
EnumValue EnumValue
Enum(arm_fpu) String(fpv5-sp-d16) Value(14) Enum(arm_fpu) String(fpv4-sp-d16) Value(14)
EnumValue EnumValue
Enum(arm_fpu) String(fpv5-d16) Value(15) Enum(arm_fpu) String(fpv5-sp-d16) Value(15)
EnumValue EnumValue
Enum(arm_fpu) String(neon-vfpv4) Value(16) Enum(arm_fpu) String(fpv5-d16) Value(16)
EnumValue EnumValue
Enum(arm_fpu) String(fp-armv8) Value(17) Enum(arm_fpu) String(fp-armv8) Value(17)

4
gcc/config/arm/arm.c
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@ -2323,8 +2323,8 @@ char arm_arch_name[] = "__ARM_ARCH_PROFILE__";
const struct arm_fpu_desc all_fpus[] = const struct arm_fpu_desc all_fpus[] =
{ {
#define ARM_FPU(NAME, FEATURES) \ #define ARM_FPU(NAME, ISA, FEATURES) \
{ NAME, FEATURES }, { NAME, {ISA isa_nobit}, FEATURES },
#include "arm-fpus.def" #include "arm-fpus.def"
#undef ARM_FPU #undef ARM_FPU
}; };

1
gcc/config/arm/arm.h
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@ -363,6 +363,7 @@ typedef unsigned long arm_fpu_feature_set;
extern const struct arm_fpu_desc extern const struct arm_fpu_desc
{ {
const char *name; const char *name;
enum isa_feature isa_bits[isa_num_bits];
arm_fpu_feature_set features; arm_fpu_feature_set features;
} all_fpus[]; } all_fpus[];