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[Stable-9.1.3 38/58] target/loongarch: Use actual operand size with vbsr


From: Michael Tokarev
Subject: [Stable-9.1.3 38/58] target/loongarch: Use actual operand size with vbsrl check
Date: Mon, 27 Jan 2025 23:25:24 +0300

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 --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;
     }
 
-- 
2.39.5




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