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[Stable-8.2.6,08/18] target/sparc: use signed denominator in sdiv helper

Message ID 20240704155251.1481617-8-mjt@tls.msk.ru
State New
Headers show
Series [Stable-8.2.6,01/18] target/i386: fix size of EBP writeback in gen_enter() | expand

Commit Message

Michael Tokarev July 4, 2024, 3:52 p.m. UTC 
From: Clément Chigot <chigot@adacore.com>

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>
(cherry picked from commit 6b4965373e561b77f91cfbdf41353635c9661358)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff mbox series

Patch

diff --git a/target/sparc/helper.c b/target/sparc/helper.c
index bd10b60e4b..8820c59e7c 100644
--- 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);