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target/ppc: Add helper for frsqrtes

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There is no double-rounding bug here, because the result is
merely an estimate to within 1 part in 32, but perform the
operation with float64r32_div for consistency.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211119160502.17432-33-richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Richard Henderson 2021-12-17 17:57:16 +01:00 • committed by Cédric Le Goater
parent 7f87214e3b
commit dedbfda765
3 changed files with 21 additions and 2 deletions
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target/ppc/helper.h
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@ -114,6 +114,7 @@ DEF_HELPER_2(fsqrts, f64, env, f64)
DEF_HELPER_2(fre, i64, env, i64)
DEF_HELPER_2(fres, i64, env, i64)
DEF_HELPER_2(frsqrte, i64, env, i64)
DEF_HELPER_2(frsqrtes, i64, env, i64)
DEF_HELPER_4(fsel, i64, env, i64, i64, i64)
DEF_HELPER_FLAGS_2(ftdiv, TCG_CALL_NO_RWG_SE, i32, i64, i64)