[arm] Use arm_active_target for most FP feature tests

Now that the isa feature bits are all available in arm_active_target
we can use that for most of the feature tests that are needed.

	* arm.h (TARGET_VFPD32): Use arm_active_target.
	(TARGET_VFP3): Likewise.
	(TARGET_VFP5): Likewise.
	(TARGET_VFP_SINGLE): Likewise.
	(TARGET_VFP_DOUBLE): Likewise.
	(TARGET_NEON_FP16): Likewise.
	(TARGET_FP16): Likewise.
	(TARGET_FMA): Likewise.
	(TARGET_FPU_ARMV8): Likewise.
	(TARGET_CRYPTO): Likewise.
	(TARGET_NEON): Likewise.
	(TARGET_FPU_FEATURES): Delete.
	* arm.c (arm_option_check_internal): Check for iwmmxt conflict with
	Neon using arm_active_target.

From-SVN: r243712

gcc/ChangeLog

 2016-12-15  Richard Earnshaw  <rearnsha@arm.com>
 
+	* arm.h (TARGET_VFPD32): Use arm_active_target.
+	(TARGET_VFP3): Likewise.
+	(TARGET_VFP5): Likewise.
+	(TARGET_VFP_SINGLE): Likewise.
+	(TARGET_VFP_DOUBLE): Likewise.
+	(TARGET_NEON_FP16): Likewise.
+	(TARGET_FP16): Likewise.
+	(TARGET_FMA): Likewise.
+	(TARGET_FPU_ARMV8): Likewise.
+	(TARGET_CRYPTO): Likewise.
+	(TARGET_NEON): Likewise.
+	(TARGET_FPU_FEATURES): Delete.
+	* arm.c (arm_option_check_internal): Check for iwmmxt conflict with
+	Neon using arm_active_target.
+
+2016-12-15  Richard Earnshaw  <rearnsha@arm.com>
+
 	* arm.h (TARGET_FPU_NAME): Delete.
 	* arm.c (arm_identify_fpu_from_isa): New function.
 	(arm_declare_function_name): Use it to get the name for the FPU.

gcc/config/arm/arm.c

@@ -2815,11 +2815,10 @@ static void
 arm_option_check_internal (struct gcc_options *opts)
 {
   int flags = opts->x_target_flags;
-  const struct arm_fpu_desc *fpu_desc = &all_fpus[opts->x_arm_fpu_index];
 
   /* iWMMXt and NEON are incompatible.  */
   if (TARGET_IWMMXT
-      && ARM_FPU_FSET_HAS (fpu_desc->features, FPU_FL_NEON))
+      && bitmap_bit_p (arm_active_target.isa, isa_bit_neon))
     error ("iWMMXt and NEON are incompatible");
 
   /* Make sure that the processor choice does not conflict with any of the

gcc/config/arm/arm.h

@@ -161,28 +161,27 @@ extern tree arm_fp16_type_node;
    to be more careful with TARGET_NEON as noted below.  */
 
 /* FPU is has the full VFPv3/NEON register file of 32 D registers.  */
-#define TARGET_VFPD32 (TARGET_FPU_FEATURES & FPU_FL_D32)
+#define TARGET_VFPD32 (bitmap_bit_p (arm_active_target.isa, isa_bit_fp_d32))
 
 /* FPU supports VFPv3 instructions.  */
-#define TARGET_VFP3 (TARGET_FPU_FEATURES & FPU_FL_VFPv3)
+#define TARGET_VFP3 (bitmap_bit_p (arm_active_target.isa, isa_bit_VFPv3))
 
 /* FPU supports FPv5 instructions.  */
-#define TARGET_VFP5 (TARGET_FPU_FEATURES & FPU_FL_VFPv5)
+#define TARGET_VFP5 (bitmap_bit_p (arm_active_target.isa, isa_bit_FPv5))
 
 /* FPU only supports VFP single-precision instructions.  */
-#define TARGET_VFP_SINGLE ((TARGET_FPU_FEATURES & FPU_FL_DBL) == 0)
+#define TARGET_VFP_SINGLE (!TARGET_VFP_DOUBLE)
 
 /* FPU supports VFP double-precision instructions.  */
-#define TARGET_VFP_DOUBLE (TARGET_FPU_FEATURES & FPU_FL_DBL)
+#define TARGET_VFP_DOUBLE (bitmap_bit_p (arm_active_target.isa, isa_bit_fp_dbl))
 
 /* FPU supports half-precision floating-point with NEON element load/store.  */
 #define TARGET_NEON_FP16					\
-  (ARM_FPU_FSET_HAS (TARGET_FPU_FEATURES, FPU_FL_NEON)		\
-   && ARM_FPU_FSET_HAS (TARGET_FPU_FEATURES, FPU_FL_FP16))
+  (bitmap_bit_p (arm_active_target.isa, isa_bit_neon)		\
+   && bitmap_bit_p (arm_active_target.isa, isa_bit_fp16conv))
 
-/* FPU supports VFP half-precision floating-point.  */
-#define TARGET_FP16							\
-  (ARM_FPU_FSET_HAS (TARGET_FPU_FEATURES, FPU_FL_FP16))
+/* FPU supports VFP half-precision floating-point conversions.  */
+#define TARGET_FP16 (bitmap_bit_p (arm_active_target.isa, isa_bit_fp16conv))
 
 /* FPU supports converting between HFmode and DFmode in a single hardware
    step.  */
@@ -190,14 +189,14 @@ extern tree arm_fp16_type_node;
   (TARGET_HARD_FLOAT && (TARGET_FP16 && TARGET_VFP5))
 
 /* FPU supports fused-multiply-add operations.  */
-#define TARGET_FMA (TARGET_FPU_FEATURES & FPU_FL_VFPv4)
+#define TARGET_FMA (bitmap_bit_p (arm_active_target.isa, isa_bit_VFPv4))
 
 /* FPU is ARMv8 compatible.  */
-#define TARGET_FPU_ARMV8 (TARGET_FPU_FEATURES & FPU_FL_ARMv8)
+#define TARGET_FPU_ARMV8					\
+  (bitmap_bit_p (arm_active_target.isa, isa_bit_FP_ARMv8))
 
 /* FPU supports Crypto extensions.  */
-#define TARGET_CRYPTO							\
-  (ARM_FPU_FSET_HAS (TARGET_FPU_FEATURES, FPU_FL_CRYPTO))
+#define TARGET_CRYPTO (bitmap_bit_p (arm_active_target.isa, isa_bit_crypto))
 
 /* FPU supports Neon instructions.  The setting of this macro gets
    revealed via __ARM_NEON__ so we add extra guards upon TARGET_32BIT
@@ -205,7 +204,7 @@ extern tree arm_fp16_type_node;
    available.  */
 #define TARGET_NEON							\
   (TARGET_32BIT && TARGET_HARD_FLOAT					\
-   && ARM_FPU_FSET_HAS (TARGET_FPU_FEATURES, FPU_FL_NEON))
+   && bitmap_bit_p (arm_active_target.isa, isa_bit_neon))
 
 /* FPU supports ARMv8.1 Adv.SIMD extensions.  */
 #define TARGET_NEON_RDMA (TARGET_NEON && arm_arch8_1)
@@ -367,10 +366,6 @@ extern const struct arm_fpu_desc
   arm_fpu_feature_set features;
 } all_fpus[];
 
-/* Accessors.  */
-
-#define TARGET_FPU_FEATURES (all_fpus[arm_fpu_index].features)
-
 /* Which floating point hardware to schedule for.  */
 extern int arm_fpu_attr;