From: Richard Henderson <richard.henderson@linaro.org>
Date: Wed, 30 Apr 2025 21:35:47 +0000 (-0700)
Subject: accel/tcg: Don't use TARGET_LONG_BITS in decode_sleb128
X-Git-Tag: v9.2.4~36
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=83c926daf87b02e95f4d69327883db6d2c5379ed;p=thirdparty%2Fqemu.git

accel/tcg: Don't use TARGET_LONG_BITS in decode_sleb128

When we changed decode_sleb128 from target_long to
int64_t, we failed to adjust the shift limit.

Cc: qemu-stable@nongnu.org
Fixes: c9ad8d27caa ("tcg: Widen gen_insn_data to uint64_t")
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
(cherry picked from commit 9401f91b9b0c46886388735b3f2033a9c254895a)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---

diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c
index fdf6d8ac191..8531a27f1e8 100644
--- a/accel/tcg/translate-all.c
+++ b/accel/tcg/translate-all.c
@@ -105,7 +105,7 @@ static int64_t decode_sleb128(const uint8_t **pp)
         val |= (int64_t)(byte & 0x7f) << shift;
         shift += 7;
     } while (byte & 0x80);
-    if (shift < TARGET_LONG_BITS && (byte & 0x40)) {
+    if (shift < 64 && (byte & 0x40)) {
         val |= -(int64_t)1 << shift;
     }