The use_first_nan field in float_status was an xtensa-specific way to
select at runtime from two different NaN propagation rules. Now that
xtensa is using the target-agnostic NaN propagation rule selection
that we've just added, we can remove use_first_nan, because there is
no longer any code that reads it.
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Message-id: 20241202131347.498124-27-peter.mayd...@linaro.org
---
include/fpu/softfloat-helpers.h | 5 -----
include/fpu/softfloat-types.h | 1 -
target/xtensa/fpu_helper.c | 1 -
3 files changed, 7 deletions(-)
diff --git a/include/fpu/softfloat-helpers.h b/include/fpu/softfloat-helpers.h
index cf06b4e16bf..10a6763532c 100644
--- a/include/fpu/softfloat-helpers.h
+++ b/include/fpu/softfloat-helpers.h
@@ -113,11 +113,6 @@ static inline void set_snan_bit_is_one(bool val,
float_status *status)
status->snan_bit_is_one = val;
}
-static inline void set_use_first_nan(bool val, float_status *status)
-{
- status->use_first_nan = val;
-}
-
static inline void set_no_signaling_nans(bool val, float_status *status)
{
status->no_signaling_nans = val;
diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.h
index d9f0797edaf..84ba4ed20e6 100644
--- a/include/fpu/softfloat-types.h
+++ b/include/fpu/softfloat-types.h
@@ -309,7 +309,6 @@ typedef struct float_status {
* softfloat-specialize.inc.c)
*/
bool snan_bit_is_one;
- bool use_first_nan;
bool no_signaling_nans;
/* should overflowed results subtract re_bias to its exponent? */
bool rebias_overflow;
diff --git a/target/xtensa/fpu_helper.c b/target/xtensa/fpu_helper.c
index 4b1b021d824..53fc7cfd2af 100644
--- a/target/xtensa/fpu_helper.c
+++ b/target/xtensa/fpu_helper.c
@@ -59,7 +59,6 @@ static const struct {
void xtensa_use_first_nan(CPUXtensaState *env, bool use_first)
{
- set_use_first_nan(use_first, &env->fp_status);
set_float_2nan_prop_rule(use_first ? float_2nan_prop_ab :
float_2nan_prop_ba,
&env->fp_status);
set_float_3nan_prop_rule(use_first ? float_3nan_prop_abc :
float_3nan_prop_cba,
--
2.34.1
