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riscv-gcc-1
Commit 50399bb1 by Alan Lawrence Committed by Alan Lawrence
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[ARM] Hide existing float16 intrinsics unless we have a scalar __fp16 type 

gcc/:

	* config/arm/arm-builtins.c (arm_init_simd_builtin_types): Move
	initialization of HFmode scalar type (float16_t) to...
	(arm_init_fp16_builtins): ... Here. Combine with __fp16 initialization
	code.

	(arm_init_builtins): Call arm_init_fp16_builtins earlier and always.

	* config/arm/arm_neon.h (vcvt_f16_f32, vcvt_f32_f16): Condition on
	having an -mfp16-format.

gcc/testsuite/:

	* lib/target-supports.exp
	(check_effective_target_arm_neon_fp16_ok_nocache): Add flag variants
	with -mfp16-format=ieee.

From-SVN: r227033
parent 30aa6349
Showing with 43 additions and 17 deletions
gcc/ChangeLog
2015-08-20 Alan Lawrence <alan.lawrence@arm.com>
* config/arm/arm-builtins.c (arm_init_simd_builtin_types): Move
initialization of HFmode scalar type (float16_t) to...
(arm_init_fp16_builtins): ... Here. Combine with __fp16 initialization
code.
(arm_init_builtins): Call arm_init_fp16_builtins earlier and always.
* config/arm/arm_neon.h (vcvt_f16_f32, vcvt_f32_f16): Condition on
having an -mfp16-format.
2015-08-20 Richard Sandiford <richard.sandiford@arm.com>
* config/i386/predicates.md (vector_all_ones_operand): Use
......
gcc/config/arm/arm-builtins.c
......@@ -769,13 +769,6 @@ arm_init_simd_builtin_types (void)
int nelts = sizeof (arm_simd_types) / sizeof (arm_simd_types[0]);
tree tdecl;
/* Initialize the HFmode scalar type. */
arm_simd_floatHF_type_node = make_node (REAL_TYPE);
TYPE_PRECISION (arm_simd_floatHF_type_node) = GET_MODE_PRECISION (HFmode);
layout_type (arm_simd_floatHF_type_node);
(*lang_hooks.types.register_builtin_type) (arm_simd_floatHF_type_node,
"__builtin_neon_hf");
/* Poly types are a world of their own. In order to maintain legacy
ABI, they get initialized using the old interface, and don't get
an entry in our mangling table, consequently, they get default
......@@ -823,6 +816,8 @@ arm_init_simd_builtin_types (void)
mangling. */
/* Continue with standard types. */
/* 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[Float32x2_t].eltype = float_type_node;
arm_simd_types[Float32x4_t].eltype = float_type_node;
......@@ -1702,10 +1697,12 @@ arm_init_iwmmxt_builtins (void)
static void
arm_init_fp16_builtins (void)
{
tree fp16_type = make_node (REAL_TYPE);
TYPE_PRECISION (fp16_type) = 16;
layout_type (fp16_type);
(*lang_hooks.types.register_builtin_type) (fp16_type, "__fp16");
arm_simd_floatHF_type_node = make_node (REAL_TYPE);
TYPE_PRECISION (arm_simd_floatHF_type_node) = GET_MODE_PRECISION (HFmode);
layout_type (arm_simd_floatHF_type_node);
if (arm_fp16_format)
(*lang_hooks.types.register_builtin_type) (arm_simd_floatHF_type_node,
"__fp16");
}
static void
......@@ -1750,12 +1747,13 @@ arm_init_builtins (void)
if (TARGET_REALLY_IWMMXT)
arm_init_iwmmxt_builtins ();
/* This creates the arm_simd_floatHF_type_node so must come before
arm_init_neon_builtins which uses it. */
arm_init_fp16_builtins ();
if (TARGET_NEON)
arm_init_neon_builtins ();
if (arm_fp16_format)
arm_init_fp16_builtins ();
if (TARGET_CRC32)
arm_init_crc32_builtins ();
......
gcc/config/arm/arm_neon.h
......@@ -41,7 +41,9 @@ typedef __simd64_int8_t int8x8_t;
typedef __simd64_int16_t int16x4_t;
typedef __simd64_int32_t int32x2_t;
typedef __builtin_neon_di int64x1_t;
#if defined (__ARM_FP16_FORMAT_IEEE) || defined (__ARM_FP16_FORMAT_ALTERNATIVE)
typedef __simd64_float16_t float16x4_t;
#endif
typedef __simd64_float32_t float32x2_t;
typedef __simd64_poly8_t poly8x8_t;
typedef __simd64_poly16_t poly16x4_t;
......@@ -6220,21 +6222,25 @@ vcvtq_u32_f32 (float32x4_t __a)
}
#if ((__ARM_FP & 0x2) != 0)
#if defined (__ARM_FP16_FORMAT_IEEE) || defined (__ARM_FP16_FORMAT_ALTERNATIVE)
__extension__ static __inline float16x4_t __attribute__ ((__always_inline__))
vcvt_f16_f32 (float32x4_t __a)
{
return (float16x4_t)__builtin_neon_vcvtv4hfv4sf (__a);
}
#endif
#endif
#if ((__ARM_FP & 0x2) != 0)
#if defined (__ARM_FP16_FORMAT_IEEE) || defined (__ARM_FP16_FORMAT_ALTERNATIVE)
__extension__ static __inline float32x4_t __attribute__ ((__always_inline__))
vcvt_f32_f16 (float16x4_t __a)
{
return (float32x4_t)__builtin_neon_vcvtv4sfv4hf (__a);
}
#endif
#endif
__extension__ static __inline int32x2_t __attribute__ ((__always_inline__))
vcvt_n_s32_f32 (float32x2_t __a, const int __b)
{
......
gcc/testsuite/ChangeLog
2015-08-20 Alan Lawrence <alan.lawrence@arm.com>
* lib/target-supports.exp
(check_effective_target_arm_neon_fp16_ok_nocache): Add flag variants
with -mfp16-format=ieee.
2015-08-20 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/67065
......
gcc/testsuite/lib/target-supports.exp
......@@ -2714,7 +2714,11 @@ proc check_effective_target_arm_neon_fp16_ok_nocache { } {
set et_arm_neon_fp16_flags ""
if { [check_effective_target_arm32] } {
foreach flags {"" "-mfloat-abi=softfp" "-mfpu=neon-fp16"
"-mfpu=neon-fp16 -mfloat-abi=softfp"} {
"-mfpu=neon-fp16 -mfloat-abi=softfp"
"-mfp16-format=ieee"
"-mfloat-abi=softfp -mfp16-format=ieee"
"-mfpu=neon-fp16 -mfp16-format=ieee"
"-mfpu=neon-fp16 -mfloat-abi=softfp -mfp16-format=ieee"} {
if { [check_no_compiler_messages_nocache arm_neon_fp_16_ok object {
#include "arm_neon.h"
float16x4_t
......
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