fpu: Remove use_first_nan field from float_status

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.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-27-peter.maydell@linaro.org

1 files changed, 0 insertions, 5 deletions

diff --git a/include/fpu/softfloat-helpers.h b/include/fpu/softfloat-helpers.h
index cf06b4e16b..10a6763532 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;