Add support for ARM half-precision conversion instructions.

include/elf/ChangeLog

@@ -1,3 +1,7 @@
+2008-11-18  Catherine Moore  <clm@codesourcery.com>
+
+	* arm.h (Tag_ABI_FP_16bit_format): Define.
+
 2008-11-14  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* internal.h (struct elf_segment_map): Add header_size field.

include/elf/arm.h

@@ -272,6 +272,12 @@ enum
   Tag_ABI_optimization_goals,
   Tag_ABI_FP_optimization_goals,
   /* 32 is generic.  */
+  Tag_undefined33 = 33,
+  Tag_CPU_unaligned_access,
+  Tag_undefined35, 
+  Tag_VFP_HP_extension,
+  Tag_undefined37,
+  Tag_ABI_FP_16bit_format = 38,
 };
 
 #endif

include/opcode/ChangeLog

@@ -1,3 +1,8 @@
+2008-11-18  Catherine Moore  <clm@codesourcery.com>
+
+	* arm.h (FPU_NEON_FP16): New.
+	(FPU_ARCH_NEON_FP16): New.
+
 2008-11-06  Chao-ying Fu  <fu@mips.com>
 
 	* mips.h: Doucument '1' for 5-bit sync type.

include/opcode/arm.h

@@ -65,6 +65,7 @@
 #define FPU_VFP_EXT_V3	 0x01000000	/* VFPv3 insns.	              */
 #define FPU_NEON_EXT_V1	 0x00800000	/* Neon (SIMD) insns.	      */
 #define FPU_VFP_EXT_D32  0x00400000	/* Registers D16-D31.	      */
+#define FPU_NEON_FP16	 0x00200000	/* Half-precision extensions. */
 
 /* Architectures are the sum of the base and extensions.  The ARM ARM (rev E)
    defines the following: ARMv3, ARMv3M, ARMv4xM, ARMv4, ARMv4TxM, ARMv4T,
@@ -139,6 +140,8 @@
 #define FPU_ARCH_NEON_V1  ARM_FEATURE (0, FPU_NEON_EXT_V1)
 #define FPU_ARCH_VFP_V3_PLUS_NEON_V1 \
   ARM_FEATURE (0, FPU_VFP_V3 | FPU_NEON_EXT_V1)
+#define FPU_ARCH_NEON_FP16 \
+  ARM_FEATURE (0, FPU_VFP_V3 | FPU_NEON_EXT_V1 | FPU_NEON_FP16)
 #define FPU_ARCH_VFP_HARD ARM_FEATURE (0, FPU_VFP_HARD)
 
 #define FPU_ARCH_ENDIAN_PURE ARM_FEATURE (0, FPU_ENDIAN_PURE)