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target/openrisc: Explicitly set 2-NaN propagation rule

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Set the NaN propagation rule explicitly for the float_status word
used in the openrisc target.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241025141254.2141506-20-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-11-05 10:09:57 +00:00
parent 4fafdcc833
commit 355e6cfb94
2 changed files with 7 additions and 1 deletions
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2
fpu/softfloat-specialize.c.inc
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@ -407,7 +407,7 @@ static int pickNaN(FloatClass a_cls, FloatClass b_cls,
|| defined(TARGET_S390X) || defined(TARGET_PPC) || defined(TARGET_M68K) \ || defined(TARGET_S390X) || defined(TARGET_PPC) || defined(TARGET_M68K) \
|| defined(TARGET_SPARC) || defined(TARGET_XTENSA) \ || defined(TARGET_SPARC) || defined(TARGET_XTENSA) \
|| defined(TARGET_I386) || defined(TARGET_ALPHA) \ || defined(TARGET_I386) || defined(TARGET_ALPHA) \
|| defined(TARGET_MICROBLAZE) || defined(TARGET_MICROBLAZE) || defined(TARGET_OPENRISC)
g_assert_not_reached(); g_assert_not_reached();
#else #else
rule = float_2nan_prop_x87; rule = float_2nan_prop_x87;

6
target/openrisc/cpu.c
View File

@ -105,6 +105,12 @@ static void openrisc_cpu_reset_hold(Object *obj, ResetType type)
set_float_detect_tininess(float_tininess_before_rounding, set_float_detect_tininess(float_tininess_before_rounding,
&cpu->env.fp_status); &cpu->env.fp_status);
/*
* TODO: this is probably not the correct NaN propagation rule for
* this architecture.
*/
set_float_2nan_prop_rule(float_2nan_prop_x87, &cpu->env.fp_status);
#ifndef CONFIG_USER_ONLY #ifndef CONFIG_USER_ONLY
cpu->env.picmr = 0x00000000; cpu->env.picmr = 0x00000000;