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softfloat: Add flag specific to Inf * 0

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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>
This commit is contained in:
Richard Henderson
2021-12-17 17:57:14 +01:00
committed by Cédric Le Goater
parent ba11446c40
commit bead3c9b0f
3 changed files with 9 additions and 8 deletions
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12
fpu/softfloat-specialize.c.inc
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@ -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) {