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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 33/35] tcg/mips: Allow JAL to be out of range in
tcg_out_bswap_subr
Date: Thu, 16 Sep 2021 08:30:23 -0700
Message-Id: <20210916153025.1944763-34-richard.henderson@linaro.org>
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Weaning off of unique alignment requirements, so allow JAL
to not reach the target. TCG_TMP1 is always available for
use as a scratch because it is clobbered by the subroutine
being called.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/mips/tcg-target.c.inc | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc
index 320795a637..3a40af8799 100644
--- a/tcg/mips/tcg-target.c.inc
+++ b/tcg/mips/tcg-target.c.inc
@@ -573,8 +573,10 @@ static void tcg_out_bswap16(TCGContext *s, TCGReg ret,=
TCGReg arg, int flags)
=20
static void tcg_out_bswap_subr(TCGContext *s, const tcg_insn_unit *sub)
{
- bool ok =3D tcg_out_opc_jmp(s, OPC_JAL, sub);
- tcg_debug_assert(ok);
+ if (!tcg_out_opc_jmp(s, OPC_JAL, sub)) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_TMP1, (uintptr_t)sub);
+ tcg_out_opc_reg(s, OPC_JALR, TCG_REG_RA, TCG_TMP1, 0);
+ }
}
=20
static void tcg_out_bswap32(TCGContext *s, TCGReg ret, TCGReg arg, int fla=
gs)
--=20
2.25.1