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target/alpha: Fix SWCR_MAP_UMZ 

We were setting the wrong bit.  The fp_status.flush_to_zero
setting is overwritten by either the constant 1 or the value
of fpcr_flush_to_zero depending on bits within an fp insn.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190921043256.4575-3-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2019-09-20 21:32:51 -07:00 committed by Alex Bennée
parent ea937dedec
commit 712e7c6112
1 changed files with 1 additions and 1 deletions
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2
target/alpha/helper.c
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@ -71,7 +71,7 @@ void cpu_alpha_store_fpcr(CPUAlphaState *env, uint64_t val)
env->fp_status.flush_inputs_to_zero = 1;
}
if (env->swcr & SWCR_MAP_UMZ) {
env->fp_status.flush_to_zero = 1;
env->fpcr_flush_to_zero = 1;
}
env->fpcr_exc_enable &= ~(alpha_ieee_swcr_to_fpcr(env->swcr) >> 32);
#endif