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target/ppc: Do not call do_float_check_status from do_fmadd 

We will process flags other than in valid in helper_float_check_status,
which is invoked after the writeback to FRT.
Fixes a bug in which FRT is not written when OE/UE/XE are enabled.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211119160502.17432-21-richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Richard Henderson 2021-12-17 17:57:15 +01:00 committed by Cédric Le Goater
parent ffdaff8e9c
commit 2125ac18bf
1 changed files with 2 additions and 5 deletions
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7
target/ppc/fpu_helper.c
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@ -699,11 +699,8 @@ static float64 do_fmadd(CPUPPCState *env, float64 a, float64 b,
float64 ret = float64_muladd(a, b, c, madd_flags, &env->fp_status);
int flags = get_float_exception_flags(&env->fp_status);
if (flags) {
if (flags & float_flag_invalid) {
float_invalid_op_madd(env, flags, 1, retaddr);
}
do_float_check_status(env, retaddr);
if (unlikely(flags & float_flag_invalid)) {
float_invalid_op_madd(env, flags, 1, retaddr);
}
return ret;
}