cvt.s.d and cvt.d.s are FP operations and thus need to convert input
sNaN into corresponding qNaN. Explicitely use the floatXX_maybe_silence_nan
functions for that as the floatXX_to_floatXX functions do not do that.

Cc: Leon Alrae <leon.al...@imgtec.com>
Signed-off-by: Aurelien Jarno <aurel...@aurel32.net>
---
 target-mips/op_helper.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index d2c98c9..20e79be 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -2545,6 +2545,7 @@ uint64_t helper_float_cvtd_s(CPUMIPSState *env, uint32_t 
fst0)
     uint64_t fdt2;
 
     fdt2 = float32_to_float64(fst0, &env->active_fpu.fp_status);
+    fdt2 = float64_maybe_silence_nan(fdt2);
     update_fcr31(env, GETPC());
     return fdt2;
 }
@@ -2634,6 +2635,7 @@ uint32_t helper_float_cvts_d(CPUMIPSState *env, uint64_t 
fdt0)
     uint32_t fst2;
 
     fst2 = float64_to_float32(fdt0, &env->active_fpu.fp_status);
+    fst2 = float32_maybe_silence_nan(fst2);
     update_fcr31(env, GETPC());
     return fst2;
 }
-- 
2.6.2


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