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target/sparc: use signed denominator in sdiv helper

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The result has to be done with the signed denominator (b32) instead of
the unsigned value passed in argument (b).

Cc: qemu-stable@nongnu.org
Fixes: 1326010322 ("target/sparc: Remove CC_OP_DIV")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2319
Signed-off-by: Clément Chigot <chigot@adacore.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240606144331.698361-1-chigot@adacore.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 6b4965373e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Clément Chigot 2024-06-06 16:43:31 +02:00 • committed by Michael Tokarev
parent 0556f5fc13
commit c8fdbb5bab
1 changed files with 1 additions and 1 deletions
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2
target/sparc/helper.c
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@ -121,7 +121,7 @@ uint64_t helper_sdiv(CPUSPARCState *env, target_ulong a, target_ulong b)
return (uint32_t)(b32 < 0 ? INT32_MAX : INT32_MIN) | (-1ull << 32); return (uint32_t)(b32 < 0 ? INT32_MAX : INT32_MIN) | (-1ull << 32);
} }
a64 /= b; a64 /= b32;
r = a64; r = a64;
if (unlikely(r != a64)) { if (unlikely(r != a64)) {
return (uint32_t)(a64 < 0 ? INT32_MIN : INT32_MAX) | (-1ull << 32); return (uint32_t)(a64 < 0 ? INT32_MIN : INT32_MAX) | (-1ull << 32);