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target/openrisc: Implement unordered fp comparisons

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These were added to the 1.3 spec.  For OF32S, validate AVR.
But OF64A32 is itself new to 1.3 so no extra check needed.

Reviewed-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2019-05-14 06:39:47 -07:00
parent 62f2b0389f
commit 2b13b4b93d
5 changed files with 145 additions and 0 deletions
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20
target/openrisc/fpu_helper.c
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@ -135,4 +135,24 @@ target_ulong helper_float_ ## name ## _s(CPUOpenRISCState *env, \
FLOAT_CMP(le, le)
FLOAT_CMP(lt, lt)
FLOAT_CMP(eq, eq_quiet)
FLOAT_CMP(un, unordered_quiet)
#undef FLOAT_CMP
#define FLOAT_UCMP(name, expr) \
target_ulong helper_float_ ## name ## _d(CPUOpenRISCState *env, \
uint64_t fdt0, uint64_t fdt1) \
{ \
int r = float64_compare_quiet(fdt0, fdt1, &env->fp_status); \
return expr; \
} \
target_ulong helper_float_ ## name ## _s(CPUOpenRISCState *env, \
uint32_t fdt0, uint32_t fdt1) \
{ \
int r = float32_compare_quiet(fdt0, fdt1, &env->fp_status); \
return expr; \
}
FLOAT_UCMP(ueq, r == float_relation_equal || r == float_relation_unordered)
FLOAT_UCMP(ult, r == float_relation_less || r == float_relation_unordered)
FLOAT_UCMP(ule, r != float_relation_greater)
#undef FLOAT_UCMP