diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2021-12-17 17:57:14 +0100 |
|---|---|---|
| committer | Cédric Le Goater <clg@kaod.org> | 2021-12-17 17:57:14 +0100 |
| commit | bead3c9b0ff8efd652afb27923d8ab4458b3bbd9 (patch) | |
| tree | 5c4dfc0a64e16129be9d3a2185e4db340951d032 | |
| parent | ba11446c40903b9d97fb75a078d43fee6444d3b6 (diff) | |
softfloat: Add flag specific to Inf * 0
PowerPC has this flag, and it's easier to compute it here
than after the fact.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211119160502.17432-4-richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
| -rw-r--r-- | fpu/softfloat-parts.c.inc | 4 | ||||
| -rw-r--r-- | fpu/softfloat-specialize.c.inc | 12 | ||||
| -rw-r--r-- | include/fpu/softfloat-types.h | 1 |
3 files changed, 9 insertions, 8 deletions
diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc index eb2b475ca4..3ed793347b 100644 --- a/fpu/softfloat-parts.c.inc +++ b/fpu/softfloat-parts.c.inc @@ -423,7 +423,7 @@ static FloatPartsN *partsN(mul)(FloatPartsN *a, FloatPartsN *b, /* Inf * Zero == NaN */ if (unlikely(ab_mask == float_cmask_infzero)) { - float_raise(float_flag_invalid, s); + float_raise(float_flag_invalid | float_flag_invalid_imz, s); parts_default_nan(a, s); return a; } @@ -489,6 +489,7 @@ static FloatPartsN *partsN(muladd)(FloatPartsN *a, FloatPartsN *b, if (unlikely(ab_mask != float_cmask_normal)) { if (unlikely(ab_mask == float_cmask_infzero)) { + float_raise(float_flag_invalid | float_flag_invalid_imz, s); goto d_nan; } @@ -567,7 +568,6 @@ static FloatPartsN *partsN(muladd)(FloatPartsN *a, FloatPartsN *b, goto finish_sign; d_nan: - float_raise(float_flag_invalid, s); parts_default_nan(a, s); return a; } diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc index f2ad0f335e..943e3301d2 100644 --- a/fpu/softfloat-specialize.c.inc +++ b/fpu/softfloat-specialize.c.inc @@ -506,7 +506,7 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls, * the default NaN */ if (infzero && is_qnan(c_cls)) { - float_raise(float_flag_invalid, status); + float_raise(float_flag_invalid | float_flag_invalid_imz, status); return 3; } @@ -533,7 +533,7 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls, * case sets InvalidOp and returns the default NaN */ if (infzero) { - float_raise(float_flag_invalid, status); + float_raise(float_flag_invalid | float_flag_invalid_imz, status); return 3; } /* Prefer sNaN over qNaN, in the a, b, c order. */ @@ -556,7 +556,7 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls, * case sets InvalidOp and returns the input value 'c' */ if (infzero) { - float_raise(float_flag_invalid, status); + float_raise(float_flag_invalid | float_flag_invalid_imz, status); return 2; } /* Prefer sNaN over qNaN, in the c, a, b order. */ @@ -580,7 +580,7 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls, * a default NaN */ if (infzero) { - float_raise(float_flag_invalid, status); + float_raise(float_flag_invalid | float_flag_invalid_imz, status); return 2; } @@ -597,7 +597,7 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls, #elif defined(TARGET_RISCV) /* For RISC-V, InvalidOp is set when multiplicands are Inf and zero */ if (infzero) { - float_raise(float_flag_invalid, status); + float_raise(float_flag_invalid | float_flag_invalid_imz, status); } return 3; /* default NaN */ #elif defined(TARGET_XTENSA) @@ -606,7 +606,7 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls, * an input NaN if we have one (ie c). */ if (infzero) { - float_raise(float_flag_invalid, status); + float_raise(float_flag_invalid | float_flag_invalid_imz, status); return 2; } if (status->use_first_nan) { diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.h index eaa12e1e00..56b4cf7835 100644 --- a/include/fpu/softfloat-types.h +++ b/include/fpu/softfloat-types.h @@ -153,6 +153,7 @@ enum { float_flag_input_denormal = 0x0020, float_flag_output_denormal = 0x0040, float_flag_invalid_isi = 0x0080, /* inf - inf */ + float_flag_invalid_imz = 0x0100, /* inf * 0 */ }; /* |