On 06/07/2017 03:52 PM, Pranith Kumar wrote:
Signed-off-by: Pranith Kumar <bobby.pr...@gmail.com> --- tcg/aarch64/tcg-target.inc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c index 1fa3bccc89..ab0a8caa03 100644 --- a/tcg/aarch64/tcg-target.inc.c +++ b/tcg/aarch64/tcg-target.inc.c @@ -819,6 +819,12 @@ static inline void tcg_out_goto(TCGContext *s, tcg_insn_unit *target) tcg_out_insn(s, 3206, B, offset); }+static inline void tcg_out_goto_register(TCGContext *s, intptr_t target)+{ + tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_TMP, target); + tcg_out_insn(s, 3207, BR, TCG_REG_TMP); +} + static inline void tcg_out_goto_noaddr(TCGContext *s) { /* We pay attention here to not modify the branch target by reading from @@ -1364,10 +1370,10 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_exit_tb: /* Reuse the zeroing that exists for goto_ptr. */ if (a0 == 0) { - tcg_out_goto(s, s->code_gen_epilogue); + tcg_out_goto_register(s, (intptr_t)(s->code_gen_epilogue));
This pessimises the first 128MB of the buffer by not using a direct branch when it fits. I think you should call the new function tcg_out_goto_long, and structure the function like tcg_out_call.
r~
