diff mbox series

[Stable-9.2.1,12/41] target/loongarch: Use actual operand size with vbsrl check

Message ID 20250127141803.3514882-12-mjt@tls.msk.ru (mailing list archive)
State New
Headers show
Series Patch Round-up for stable 9.2.1, freeze on 2025-02-06 | expand

Commit Message

Michael Tokarev Jan. 27, 2025, 2:17 p.m. UTC 
From: Bibo Mao <maobibo@loongson.cn>

Hardcoded 32 bytes is used for vbsrl emulation check, there is
problem when options lsx=on,lasx=off is used for vbsrl.v instruction
in TCG mode. It injects LASX exception rather LSX exception.

Here actual operand size is used.

Cc: qemu-stable@nongnu.org
Fixes: df97f338076 ("target/loongarch: Implement xvreplve xvinsve0 xvpickve")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
(cherry picked from commit d41989e7548397b469ec9c7be4cee699321a317e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff mbox series

Patch

diff --git a/target/loongarch/tcg/insn_trans/trans_vec.c.inc b/target/loongarch/tcg/insn_trans/trans_vec.c.inc
index 92b1d22e28..ba5ca98a33 100644
--- a/target/loongarch/tcg/insn_trans/trans_vec.c.inc
+++ b/target/loongarch/tcg/insn_trans/trans_vec.c.inc
@@ -5126,7 +5126,7 @@  static bool do_vbsrl_v(DisasContext *ctx, arg_vv_i *a, uint32_t oprsz)
 {
     int i, ofs;
 
-    if (!check_vec(ctx, 32)) {
+    if (!check_vec(ctx, oprsz)) {
         return true;
     }