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softfloat: Implement the full set of comparisons for float16

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Implement them in softfloat and remove the local versions in riscv.

Signed-off-by: Kito Cheng <kito.cheng@sifive.com>
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <1596102747-20226-2-git-send-email-chihmin.chao@sifive.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Kito Cheng
2020-07-30 02:52:22 -07:00
committed by Richard Henderson
parent ea1bb830cb
commit dd205025a0
2 changed files with 41 additions and 25 deletions
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41
include/fpu/softfloat.h
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@ -285,6 +285,47 @@ static inline float16 float16_set_sign(float16 a, int sign)
return make_float16((float16_val(a) & 0x7fff) | (sign << 15));
}
static inline bool float16_eq(float16 a, float16 b, float_status *s)
{
return float16_compare(a, b, s) == float_relation_equal;
}
static inline bool float16_le(float16 a, float16 b, float_status *s)
{
return float16_compare(a, b, s) <= float_relation_equal;
}
static inline bool float16_lt(float16 a, float16 b, float_status *s)
{
return float16_compare(a, b, s) < float_relation_equal;
}
static inline bool float16_unordered(float16 a, float16 b, float_status *s)
{
return float16_compare(a, b, s) == float_relation_unordered;
}
static inline bool float16_eq_quiet(float16 a, float16 b, float_status *s)
{
return float16_compare_quiet(a, b, s) == float_relation_equal;
}
static inline bool float16_le_quiet(float16 a, float16 b, float_status *s)
{
return float16_compare_quiet(a, b, s) <= float_relation_equal;
}
static inline bool float16_lt_quiet(float16 a, float16 b, float_status *s)
{
return float16_compare_quiet(a, b, s) < float_relation_equal;
}
static inline bool float16_unordered_quiet(float16 a, float16 b,
float_status *s)
{
return float16_compare_quiet(a, b, s) == float_relation_unordered;
}
#define float16_zero make_float16(0)
#define float16_half make_float16(0x3800)
#define float16_one make_float16(0x3c00)