target/sparc: use signed denominator in sdiv helper

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: 1326010322d6 ("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>

diff --git a/target/sparc/helper.c b/target/sparc/helper.c
index 2247e243b5e1bbf31bd6d00819d6678227295ba2..7846ddd6f6248b6e06a8ea965c9096701b5a8c19 100644 (file)
--- a/target/sparc/helper.c
+++ b/target/sparc/helper.c
@@ -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);
     }
 
-    a64 /= b;
+    a64 /= b32;
     r = a64;
     if (unlikely(r != a64)) {
         return (uint32_t)(a64 < 0 ? INT32_MIN : INT32_MAX) | (-1ull << 32);