Hi,
The attached patch replaces calls to _builtin_neon_vceq<type> (a, b) with a == b
for integral variants, and for fp variants it gates the equality
comparison on __FAST_MATH__ because for fp variants a == b results in
much longer
code than __builtin_neon_vceqv2sf. which simply emits vceq.f32.
However both produce vceq.f32 with -ffast-math.
Thanks,
Prathamesh
2021-06-09 Prathamesh Kulkarni <prathamesh.kulka...@linaro.org>
* config/arm/arm_neon.h (vceq_s8): Replace builtin with __a == __b.
(vceq_s16): Likewise.
(vceq_s32): Likewise.
(vceq_u8): Likewise.
(vceq_u16): Likewise.
(vceq_u32): Likewise.
(vceq_p8): Likewise.
(vceqq_s8): Likewise.
(vceqq_s16): Likewise.
(vceqq_s32): Likewise.
(vceqq_u8): Likewise.
(vceqq_u16): Likewise.
(vceqq_u32): Likewise.
(vceqq_p8): Likewise.
(vceq_f32): Gate __a == __b on __FAST_MATH__.
(vceqq_f32): Likewise.
(vceq_f16): Likewise.
(vceqq_f16): Likewise.
diff --git a/gcc/config/arm/arm_neon.h b/gcc/config/arm/arm_neon.h
index dcd533fd003..7a800062f9e 100644
--- a/gcc/config/arm/arm_neon.h
+++ b/gcc/config/arm/arm_neon.h
@@ -2359,112 +2359,120 @@ __extension__ extern __inline uint8x8_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceq_s8 (int8x8_t __a, int8x8_t __b)
{
- return (uint8x8_t)__builtin_neon_vceqv8qi (__a, __b);
+ return (uint8x8_t) (__a == __b);
}
__extension__ extern __inline uint16x4_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceq_s16 (int16x4_t __a, int16x4_t __b)
{
- return (uint16x4_t)__builtin_neon_vceqv4hi (__a, __b);
+ return (uint16x4_t) (__a == __b);
}
__extension__ extern __inline uint32x2_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceq_s32 (int32x2_t __a, int32x2_t __b)
{
- return (uint32x2_t)__builtin_neon_vceqv2si (__a, __b);
+ return (uint32x2_t) (__a == __b);
}
__extension__ extern __inline uint32x2_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceq_f32 (float32x2_t __a, float32x2_t __b)
{
+#ifdef __FAST_MATH__
+ return (uint32x2_t) (__a == __b);
+#else
return (uint32x2_t)__builtin_neon_vceqv2sf (__a, __b);
+#endif
}
__extension__ extern __inline uint8x8_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceq_u8 (uint8x8_t __a, uint8x8_t __b)
{
- return (uint8x8_t)__builtin_neon_vceqv8qi ((int8x8_t) __a, (int8x8_t) __b);
+ return (uint8x8_t) (__a == __b);
}
__extension__ extern __inline uint16x4_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceq_u16 (uint16x4_t __a, uint16x4_t __b)
{
- return (uint16x4_t)__builtin_neon_vceqv4hi ((int16x4_t) __a, (int16x4_t)
__b);
+ return (uint16x4_t) (__a == __b);
}
__extension__ extern __inline uint32x2_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceq_u32 (uint32x2_t __a, uint32x2_t __b)
{
- return (uint32x2_t)__builtin_neon_vceqv2si ((int32x2_t) __a, (int32x2_t)
__b);
+ return (uint32x2_t) (__a == __b);
}
__extension__ extern __inline uint8x8_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceq_p8 (poly8x8_t __a, poly8x8_t __b)
{
- return (uint8x8_t)__builtin_neon_vceqv8qi ((int8x8_t) __a, (int8x8_t) __b);
+ return (uint8x8_t) (__a == __b);
}
__extension__ extern __inline uint8x16_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceqq_s8 (int8x16_t __a, int8x16_t __b)
{
- return (uint8x16_t)__builtin_neon_vceqv16qi (__a, __b);
+ return (uint8x16_t) (__a == __b);
}
__extension__ extern __inline uint16x8_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceqq_s16 (int16x8_t __a, int16x8_t __b)
{
- return (uint16x8_t)__builtin_neon_vceqv8hi (__a, __b);
+ return (uint16x8_t) (__a == __b);
}
__extension__ extern __inline uint32x4_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceqq_s32 (int32x4_t __a, int32x4_t __b)
{
- return (uint32x4_t)__builtin_neon_vceqv4si (__a, __b);
+ return (uint32x4_t) (__a == __b);
}
__extension__ extern __inline uint32x4_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceqq_f32 (float32x4_t __a, float32x4_t __b)
{
+#ifdef __FAST_MATH__
+ return (uint32x4_t) (__a == __b);
+#else
return (uint32x4_t)__builtin_neon_vceqv4sf (__a, __b);
+#endif
}
__extension__ extern __inline uint8x16_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceqq_u8 (uint8x16_t __a, uint8x16_t __b)
{
- return (uint8x16_t)__builtin_neon_vceqv16qi ((int8x16_t) __a, (int8x16_t)
__b);
+ return (uint8x16_t) (__a == __b);
}
__extension__ extern __inline uint16x8_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceqq_u16 (uint16x8_t __a, uint16x8_t __b)
{
- return (uint16x8_t)__builtin_neon_vceqv8hi ((int16x8_t) __a, (int16x8_t)
__b);
+ return (uint16x8_t) (__a == __b);
}
__extension__ extern __inline uint32x4_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceqq_u32 (uint32x4_t __a, uint32x4_t __b)
{
- return (uint32x4_t)__builtin_neon_vceqv4si ((int32x4_t) __a, (int32x4_t)
__b);
+ return (uint32x4_t) (__a == __b);
}
__extension__ extern __inline uint8x16_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceqq_p8 (poly8x16_t __a, poly8x16_t __b)
{
- return (uint8x16_t)__builtin_neon_vceqv16qi ((int8x16_t) __a, (int8x16_t)
__b);
+ return (uint8x16_t) (__a == __b);
}
__extension__ extern __inline uint8x8_t
@@ -17195,14 +17203,22 @@ __extension__ extern __inline uint16x4_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceq_f16 (float16x4_t __a, float16x4_t __b)
{
+#ifdef __FAST_MATH__
+ return (uint16x4_t) (__a == __b);
+#else
return (uint16x4_t)__builtin_neon_vceqv4hf (__a, __b);
+#endif
}
__extension__ extern __inline uint16x8_t
__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
vceqq_f16 (float16x8_t __a, float16x8_t __b)
{
+#ifdef __FAST_MATH__
+ return (uint16x8_t) (__a == __b);
+#else
return (uint16x8_t)__builtin_neon_vceqv8hf (__a, __b);
+#endif
}
__extension__ extern __inline uint16x4_t
