From 3dede407cc61b64997f0c30f6dbf4df09949abc9 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Tue, 5 May 2020 09:01:49 -0700 Subject: softfloat: Name rounding mode enum MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Give the previously unnamed enum a typedef name. Use the packed attribute so that we do not affect the layout of the float_status struct. Use it in the prototypes of relevant functions. Adjust switch statements as necessary to avoid compiler warnings. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- fpu/softfloat.c | 57 ++++++++++++++++++++++++++++++++++----------------------- 1 file changed, 34 insertions(+), 23 deletions(-) (limited to 'fpu/softfloat.c') diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 65d457a548..93d8a03de6 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -759,6 +759,8 @@ static FloatParts round_canonical(FloatParts p, float_status *s, case float_round_to_odd: inc = frac & frac_lsb ? 0 : round_mask; break; + default: + break; } flags |= float_flag_inexact; frac += inc; @@ -1928,7 +1930,7 @@ float32 float64_to_float32(float64 a, float_status *s) * Arithmetic. */ -static FloatParts round_to_int(FloatParts a, int rmode, +static FloatParts round_to_int(FloatParts a, FloatRoundMode rmode, int scale, float_status *s) { switch (a.cls) { @@ -2061,8 +2063,8 @@ float64 float64_round_to_int(float64 a, float_status *s) * is returned. */ -static int64_t round_to_int_and_pack(FloatParts in, int rmode, int scale, - int64_t min, int64_t max, +static int64_t round_to_int_and_pack(FloatParts in, FloatRoundMode rmode, + int scale, int64_t min, int64_t max, float_status *s) { uint64_t r; @@ -2107,63 +2109,63 @@ static int64_t round_to_int_and_pack(FloatParts in, int rmode, int scale, } } -int16_t float16_to_int16_scalbn(float16 a, int rmode, int scale, +int16_t float16_to_int16_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float16_unpack_canonical(a, s), rmode, scale, INT16_MIN, INT16_MAX, s); } -int32_t float16_to_int32_scalbn(float16 a, int rmode, int scale, +int32_t float16_to_int32_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float16_unpack_canonical(a, s), rmode, scale, INT32_MIN, INT32_MAX, s); } -int64_t float16_to_int64_scalbn(float16 a, int rmode, int scale, +int64_t float16_to_int64_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float16_unpack_canonical(a, s), rmode, scale, INT64_MIN, INT64_MAX, s); } -int16_t float32_to_int16_scalbn(float32 a, int rmode, int scale, +int16_t float32_to_int16_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float32_unpack_canonical(a, s), rmode, scale, INT16_MIN, INT16_MAX, s); } -int32_t float32_to_int32_scalbn(float32 a, int rmode, int scale, +int32_t float32_to_int32_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float32_unpack_canonical(a, s), rmode, scale, INT32_MIN, INT32_MAX, s); } -int64_t float32_to_int64_scalbn(float32 a, int rmode, int scale, +int64_t float32_to_int64_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float32_unpack_canonical(a, s), rmode, scale, INT64_MIN, INT64_MAX, s); } -int16_t float64_to_int16_scalbn(float64 a, int rmode, int scale, +int16_t float64_to_int16_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float64_unpack_canonical(a, s), rmode, scale, INT16_MIN, INT16_MAX, s); } -int32_t float64_to_int32_scalbn(float64 a, int rmode, int scale, +int32_t float64_to_int32_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float64_unpack_canonical(a, s), rmode, scale, INT32_MIN, INT32_MAX, s); } -int64_t float64_to_int64_scalbn(float64 a, int rmode, int scale, +int64_t float64_to_int64_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_int_and_pack(float64_unpack_canonical(a, s), @@ -2273,8 +2275,9 @@ int64_t float64_to_int64_round_to_zero(float64 a, float_status *s) * flag. */ -static uint64_t round_to_uint_and_pack(FloatParts in, int rmode, int scale, - uint64_t max, float_status *s) +static uint64_t round_to_uint_and_pack(FloatParts in, FloatRoundMode rmode, + int scale, uint64_t max, + float_status *s) { int orig_flags = get_float_exception_flags(s); FloatParts p = round_to_int(in, rmode, scale, s); @@ -2319,63 +2322,63 @@ static uint64_t round_to_uint_and_pack(FloatParts in, int rmode, int scale, } } -uint16_t float16_to_uint16_scalbn(float16 a, int rmode, int scale, +uint16_t float16_to_uint16_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float16_unpack_canonical(a, s), rmode, scale, UINT16_MAX, s); } -uint32_t float16_to_uint32_scalbn(float16 a, int rmode, int scale, +uint32_t float16_to_uint32_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float16_unpack_canonical(a, s), rmode, scale, UINT32_MAX, s); } -uint64_t float16_to_uint64_scalbn(float16 a, int rmode, int scale, +uint64_t float16_to_uint64_scalbn(float16 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float16_unpack_canonical(a, s), rmode, scale, UINT64_MAX, s); } -uint16_t float32_to_uint16_scalbn(float32 a, int rmode, int scale, +uint16_t float32_to_uint16_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float32_unpack_canonical(a, s), rmode, scale, UINT16_MAX, s); } -uint32_t float32_to_uint32_scalbn(float32 a, int rmode, int scale, +uint32_t float32_to_uint32_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float32_unpack_canonical(a, s), rmode, scale, UINT32_MAX, s); } -uint64_t float32_to_uint64_scalbn(float32 a, int rmode, int scale, +uint64_t float32_to_uint64_scalbn(float32 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float32_unpack_canonical(a, s), rmode, scale, UINT64_MAX, s); } -uint16_t float64_to_uint16_scalbn(float64 a, int rmode, int scale, +uint16_t float64_to_uint16_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float64_unpack_canonical(a, s), rmode, scale, UINT16_MAX, s); } -uint32_t float64_to_uint32_scalbn(float64 a, int rmode, int scale, +uint32_t float64_to_uint32_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float64_unpack_canonical(a, s), rmode, scale, UINT32_MAX, s); } -uint64_t float64_to_uint64_scalbn(float64 a, int rmode, int scale, +uint64_t float64_to_uint64_scalbn(float64 a, FloatRoundMode rmode, int scale, float_status *s) { return round_to_uint_and_pack(float64_unpack_canonical(a, s), @@ -5715,6 +5718,11 @@ floatx80 floatx80_round_to_int(floatx80 a, float_status *status) return aSign ? packFloatx80( 1, 0, 0 ) : packFloatx80( 0, 0x3FFF, UINT64_C(0x8000000000000000)); + + case float_round_to_zero: + break; + default: + g_assert_not_reached(); } return packFloatx80( aSign, 0, 0 ); } @@ -7047,6 +7055,9 @@ float128 float128_round_to_int(float128 a, float_status *status) case float_round_to_odd: return packFloat128(aSign, 0x3FFF, 0, 0); + + case float_round_to_zero: + break; } return packFloat128( aSign, 0, 0, 0 ); } -- cgit v1.2.3