[PATCH v3 07/16] tcg/mips: Allow JAL to be out of range in tcg_out_bswap_subr

[Richard Henderson <richard.henderson@linaro.org>]

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 4019c22f3c..c65c4ee1f8 100644
--- a/tcg/mips/tcg-target.c.inc
+++ b/tcg/mips/tcg-target.c.inc
@@ -585,8 +585,10 @@ static void tcg_out_bswap16(TCGContext *s, TCGReg ret, TCGReg arg, int flags)
 
 static void tcg_out_bswap_subr(TCGContext *s, const tcg_insn_unit *sub)
 {
-    bool ok = 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);
+    }
 }
 
 static void tcg_out_bswap32(TCGContext *s, TCGReg ret, TCGReg arg, int flags)
-- 
2.25.1