From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: gaosong@loongson.cn, qemu-stable@nongnu.org
Subject: [PATCH] tcg/loongarch64: Set vector registers call clobbered
Date: Fri, 2 Feb 2024 09:34:14 +1000 [thread overview]
Message-ID: <20240201233414.500588-1-richard.henderson@linaro.org> (raw)
Because there are more call clobbered registers than
call saved registers, we begin with all registers as
call clobbered and then reset those that are saved.
This was missed when we introduced the LSX support.
Cc: qemu-stable@nongnu.org
Fixes: 16288ded944 ("tcg/loongarch64: Lower basic tcg vec ops to LSX")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2136
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index bab0a173a3..dcf0205458 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -2327,7 +2327,7 @@ static void tcg_target_init(TCGContext *s)
tcg_target_available_regs[TCG_TYPE_I32] = ALL_GENERAL_REGS;
tcg_target_available_regs[TCG_TYPE_I64] = ALL_GENERAL_REGS;
- tcg_target_call_clobber_regs = ALL_GENERAL_REGS;
+ tcg_target_call_clobber_regs = ALL_GENERAL_REGS | ALL_VECTOR_REGS;
tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S0);
tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S1);
tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S2);
--
2.34.1
next reply other threads:[~2024-02-01 23:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-01 23:34 Richard Henderson [this message]
2024-02-02 1:20 ` [PATCH] tcg/loongarch64: Set vector registers call clobbered gaosong
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