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| author | Richard Henderson <richard.henderson@linaro.org> | 2018-12-11 10:25:02 -0600 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2018-12-26 06:58:43 +1100 |
| commit | 4250da10923347c9ee907f8d72bd93dfa5ee8742 (patch) | |
| tree | 7922dee84ebb2b0104a470408c649032392d5ace /tcg/tcg.c | |
| parent | 25f49c5f1508ddf081ce89fa6bbfd87a51eea37b (diff) | |
| download | focaccia-qemu-4250da10923347c9ee907f8d72bd93dfa5ee8742.tar.gz focaccia-qemu-4250da10923347c9ee907f8d72bd93dfa5ee8742.zip | |
tcg: Improve call argument loading
Free the argument register only after we have verified that the temporary is not already in that register. This case is likely now that we are back propagating the preferred register. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/tcg.c')
| -rw-r--r-- | tcg/tcg.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tcg/tcg.c b/tcg/tcg.c index 5f8c09b0b4..c54b119020 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -3611,15 +3611,16 @@ static void tcg_reg_alloc_call(TCGContext *s, TCGOp *op) if (arg != TCG_CALL_DUMMY_ARG) { ts = arg_temp(arg); reg = tcg_target_call_iarg_regs[i]; - tcg_reg_free(s, reg, allocated_regs); if (ts->val_type == TEMP_VAL_REG) { if (ts->reg != reg) { + tcg_reg_free(s, reg, allocated_regs); tcg_out_mov(s, ts->type, reg, ts->reg); } } else { TCGRegSet arg_set = 0; + tcg_reg_free(s, reg, allocated_regs); tcg_regset_set_reg(arg_set, reg); temp_load(s, ts, arg_set, allocated_regs, 0); } |