[ARM] Add V8HFmode and float16x8_t type

	
	* config/arm/arm.h (VALID_NEON_QREG_MODE): Add V8HFmode.

	* config/arm/arm.c (arm_vector_mode_supported_p): Support V8HFmode.

	* config/arm/arm-builtins.c (v8hf_UP): New.
	(arm_init_simd_builtin_types): Initialise Float16x8_t.

	* config/arm/arm-simd-builtin-types.def (Float16x8_t): New.

	* config/arm/arm_neon.h (float16x8_t): New typedef.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227536 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 10 insertions, 2 deletions

diff --git a/gcc/config/arm/arm-builtins.c b/gcc/config/arm/arm-builtins.c
index 4391f17c655..342c138eab7 100644
--- a/gcc/config/arm/arm-builtins.c
+++ b/gcc/config/arm/arm-builtins.c
@@ -190,6 +190,7 @@ 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
@@ -819,6 +820,7 @@ arm_init_simd_builtin_types (void)
   /* The __builtin_simd{64,128}_float16 types are kept private unless
      we have a scalar __fp16 type.  */
   arm_simd_types[Float16x4_t].eltype = arm_simd_floatHF_type_node;
+  arm_simd_types[Float16x8_t].eltype = arm_simd_floatHF_type_node;
   arm_simd_types[Float32x2_t].eltype = float_type_node;
   arm_simd_types[Float32x4_t].eltype = float_type_node;
 
diff --git a/gcc/config/arm/arm-simd-builtin-types.def b/gcc/config/arm/arm-simd-builtin-types.def
index bcbd20be057..b178ae6c05f 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 fa4e083adfe..f343d533396 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -26278,7 +26278,8 @@ 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 eee9e8b551f..f7a9d638673 100644
--- a/gcc/config/arm/arm.h
+++ b/gcc/config/arm/arm.h
@@ -1016,7 +1016,7 @@ 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 3c40f9f94fa..10d2de945e1 100644
--- a/gcc/config/arm/arm_neon.h
+++ b/gcc/config/arm/arm_neon.h
@@ -60,6 +60,9 @@ typedef __simd128_int8_t int8x16_t;
 typedef __simd128_int16_t int16x8_t;
 typedef __simd128_int32_t int32x4_t;
 typedef __simd128_int64_t int64x2_t;
+#if defined (__ARM_FP16_FORMAT_IEEE) || defined (__ARM_FP16_FORMAT_ALTERNATIVE)
+typedef __simd128_float16_t float16x8_t;
+#endif
 typedef __simd128_float32_t float32x4_t;
 typedef __simd128_poly8_t poly8x16_t;
 typedef __simd128_poly16_t poly16x8_t;