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target-mips: silence NaNs for cvt.s.d and cvt.d.s

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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.

Backports commit 1aa56f6ee7d2375b0734e98ba69cc41416894bbc from qemu
This commit is contained in:
Aurelien Jarno 2018-02-19 00:40:17 -05:00 committed by Lioncash
parent a0f361c4e3
commit 2e8c6adc4b
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1 changed files with 2 additions and 0 deletions
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qemu/target-mips/op_helper.c
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@ -2548,6 +2548,7 @@ 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;
}
@ -2637,6 +2638,7 @@ 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;
}