In the helper_compute_fprf functions, we pass a dummy float_status
in to the is_signaling_nan() function. This is unnecessary, because
we have convenient access to the CPU env pointer here and that
is already set up with the correct values for the snan_bit_is_one
and no_signaling_nans config settings. is_signaling_nan() doesn't
ever update the fp_status with any exception flags, so there is
no reason not to use env->fp_status here.
Use env->fp_status instead of the dummy fp_status.
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Message-id: 20241202131347.498124-34-peter.mayd...@linaro.org
---
target/ppc/fpu_helper.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index 230466a87f3..d93cfed17b4 100644
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -155,8 +155,7 @@ void helper_compute_fprf_##tp(CPUPPCState *env, tp arg)
\
} else if (tp##_is_infinity(arg)) { \
fprf = neg ? 0x09 << FPSCR_FPRF : 0x05 << FPSCR_FPRF; \
} else { \
- float_status dummy = { }; /* snan_bit_is_one = 0 */ \
- if (tp##_is_signaling_nan(arg, &dummy)) { \
+ if (tp##_is_signaling_nan(arg, &env->fp_status)) { \
fprf = 0x00 << FPSCR_FPRF; \
} else { \
fprf = 0x11 << FPSCR_FPRF; \
--
2.34.1
