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target/s390x: Explicitly set 2-NaN propagation rule

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Set the 2-NaN propagation rule explicitly in env->fpu_status.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241025141254.2141506-8-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-11-05 10:09:54 +00:00
parent 2915876e03
commit 841f9d7475
2 changed files with 3 additions and 3 deletions
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5
fpu/softfloat-specialize.c.inc
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@ -403,10 +403,9 @@ static int pickNaN(FloatClass a_cls, FloatClass b_cls,
#if defined(TARGET_AVR) || defined(TARGET_HEXAGON) \
|| defined(TARGET_RISCV) || defined(TARGET_SH4) \
|| defined(TARGET_TRICORE) || defined(TARGET_ARM) || defined(TARGET_MIPS) \
|| defined(TARGET_LOONGARCH64) || defined(TARGET_HPPA)
|| defined(TARGET_LOONGARCH64) || defined(TARGET_HPPA) \
|| defined(TARGET_S390X)
g_assert_not_reached();
#elif defined(TARGET_S390X)
rule = float_2nan_prop_s_ab;
#elif defined(TARGET_PPC) || defined(TARGET_M68K)
/*
* PowerPC propagation rules:

1
target/s390x/cpu.c
View File

@ -205,6 +205,7 @@ static void s390_cpu_reset_hold(Object *obj, ResetType type)
/* tininess for underflow is detected before rounding */
set_float_detect_tininess(float_tininess_before_rounding,
&env->fpu_status);
set_float_2nan_prop_rule(float_2nan_prop_s_ab, &env->fpu_status);
/* fall through */
case RESET_TYPE_S390_CPU_NORMAL:
env->psw.mask &= ~PSW_MASK_RI;