commit bc582bd6a0ed7c7c91fc834603fc573ed745b1a7
Author: Alan Lawrence <alan.lawrence@arm.com>
Date:   Mon Dec 8 18:40:24 2014 +0000

    Add float16x8_t + V8HFmode support (regardless of -mfp16-format)

diff --git a/gcc/config/arm/arm-builtins.c b/gcc/config/arm/arm-builtins.c
index 3de2be7..2d97023 100644
--- a/gcc/config/arm/arm-builtins.c
+++ b/gcc/config/arm/arm-builtins.c
@@ -204,6 +204,7 @@ arm_storestruct_lane_qualifiers[SIMD_MAX_BUILTIN_ARGS]
 #define di_UP    DImode
 #define v16qi_UP V16QImode
 #define v8hi_UP  V8HImode
+#define v8hf_UP  V8HFmode
 #define v4si_UP  V4SImode
 #define v4sf_UP  V4SFmode
 #define v2di_UP  V2DImode
@@ -839,6 +840,7 @@ arm_init_simd_builtin_types (void)
   /* Continue with standard types.  */
   arm_simd_types[Float16x4_t].eltype = arm_simd_floatHF_type_node;
   arm_simd_types[Float32x2_t].eltype = float_type_node;
+  arm_simd_types[Float16x8_t].eltype = arm_simd_floatHF_type_node;
   arm_simd_types[Float32x4_t].eltype = float_type_node;
 
   for (i = 0; i < nelts; i++)
diff --git a/gcc/config/arm/arm-simd-builtin-types.def b/gcc/config/arm/arm-simd-builtin-types.def
index bcbd20b..b178ae6 100644
--- a/gcc/config/arm/arm-simd-builtin-types.def
+++ b/gcc/config/arm/arm-simd-builtin-types.def
@@ -44,5 +44,7 @@
 
   ENTRY (Float16x4_t, V4HF, none, 64, float16, 18)
   ENTRY (Float32x2_t, V2SF, none, 64, float32, 18)
+
+  ENTRY (Float16x8_t, V8HF, none, 128, float16, 19)
   ENTRY (Float32x4_t, V4SF, none, 128, float32, 19)
 
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 4181f12..9de63fa 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -26367,7 +26367,8 @@ arm_vector_mode_supported_p (machine_mode mode)
 {
   /* Neon also supports V2SImode, etc. listed in the clause below.  */
   if (TARGET_NEON && (mode == V2SFmode || mode == V4SImode || mode == V8HImode
-      || mode == V4HFmode || mode == V16QImode || mode == V4SFmode || mode == V2DImode))
+      || mode ==V4HFmode || mode == V16QImode || mode == V4SFmode
+      || mode == V2DImode || mode == V8HFmode))
     return true;
 
   if ((TARGET_NEON || TARGET_IWMMXT)
diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h
index 8c10ea3..f0ef33f 100644
--- a/gcc/config/arm/arm.h
+++ b/gcc/config/arm/arm.h
@@ -1104,7 +1104,7 @@ extern int arm_arch_crc;
 /* Modes valid for Neon Q registers.  */
 #define VALID_NEON_QREG_MODE(MODE) \
   ((MODE) == V4SImode || (MODE) == V8HImode || (MODE) == V16QImode \
-   || (MODE) == V4SFmode || (MODE) == V2DImode)
+   || (MODE) == V8HFmode || (MODE) == V4SFmode || (MODE) == V2DImode)
 
 /* Structure modes valid for Neon registers.  */
 #define VALID_NEON_STRUCT_MODE(MODE) \
diff --git a/gcc/config/arm/arm_neon.h b/gcc/config/arm/arm_neon.h
index b4100c8..a958f63 100644
--- a/gcc/config/arm/arm_neon.h
+++ b/gcc/config/arm/arm_neon.h
@@ -58,6 +58,7 @@ typedef __simd128_int8_t int8x16_t;
 typedef __simd128_int16_t int16x8_t;
 typedef __simd128_int32_t int32x4_t;
 typedef __simd128_int64_t int64x2_t;
+typedef __simd128_float16_t float16x8_t;
 typedef __simd128_float32_t float32x4_t;
 typedef __simd128_poly8_t poly8x16_t;
 typedef __simd128_poly16_t poly16x8_t;