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authorPeter Maydell <peter.maydell@linaro.org>2024-12-11 15:30:58 +0000
committerPeter Maydell <peter.maydell@linaro.org>2024-12-11 15:30:58 +0000
commit3a45371291af21b9671ac081fae6bec9270c9af7 (patch)
tree51b7ac9d636b402e8c911cab2e9ba3567090650e
parent49866dcb59a28325c99c08745ed8e7c81828ed06 (diff)
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target/mips: Set Float3NaNPropRule explicitly
Set the Float3NaNPropRule explicitly for Arm, and remove the ifdef from pickNaNMulAdd(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20241202131347.498124-23-peter.maydell@linaro.org
-rw-r--r--fpu/softfloat-specialize.c.inc8
-rw-r--r--target/mips/fpu_helper.h4
-rw-r--r--target/mips/msa.c3
3 files changed, 8 insertions, 7 deletions
diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc
index c4d8d08..28db409 100644
--- a/fpu/softfloat-specialize.c.inc
+++ b/fpu/softfloat-specialize.c.inc
@@ -505,13 +505,7 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls,
}
if (rule == float_3nan_prop_none) {
-#if defined(TARGET_MIPS)
- if (snan_bit_is_one(status)) {
- rule = float_3nan_prop_s_abc;
- } else {
- rule = float_3nan_prop_s_cab;
- }
-#elif defined(TARGET_XTENSA)
+#if defined(TARGET_XTENSA)
if (status->use_first_nan) {
rule = float_3nan_prop_abc;
} else {
diff --git a/target/mips/fpu_helper.h b/target/mips/fpu_helper.h
index be66f2f..8ca0ca7 100644
--- a/target/mips/fpu_helper.h
+++ b/target/mips/fpu_helper.h
@@ -29,6 +29,7 @@ static inline void restore_snan_bit_mode(CPUMIPSState *env)
{
bool nan2008 = env->active_fpu.fcr31 & (1 << FCR31_NAN2008);
FloatInfZeroNaNRule izn_rule;
+ Float3NaNPropRule nan3_rule;
/*
* With nan2008, SNaNs are silenced in the usual way.
@@ -44,6 +45,9 @@ static inline void restore_snan_bit_mode(CPUMIPSState *env)
*/
izn_rule = nan2008 ? float_infzeronan_dnan_never : float_infzeronan_dnan_always;
set_float_infzeronan_rule(izn_rule, &env->active_fpu.fp_status);
+ nan3_rule = nan2008 ? float_3nan_prop_s_cab : float_3nan_prop_s_abc;
+ set_float_3nan_prop_rule(nan3_rule, &env->active_fpu.fp_status);
+
}
static inline void restore_fp_status(CPUMIPSState *env)
diff --git a/target/mips/msa.c b/target/mips/msa.c
index cc152db..93a9a87 100644
--- a/target/mips/msa.c
+++ b/target/mips/msa.c
@@ -66,6 +66,9 @@ void msa_reset(CPUMIPSState *env)
set_float_2nan_prop_rule(float_2nan_prop_s_ab,
&env->active_tc.msa_fp_status);
+ set_float_3nan_prop_rule(float_3nan_prop_s_cab,
+ &env->active_tc.msa_fp_status);
+
/* clear float_status exception flags */
set_float_exception_flags(0, &env->active_tc.msa_fp_status);