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| author | Richard Henderson <richard.henderson@linaro.org> | 2022-12-18 22:18:32 +0100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-01-05 11:41:29 -0800 |
| commit | cb10bc63b70737eafaceac1bf1d97730ce6d3393 (patch) | |
| tree | 862d1d2a6059143f2153522f02f557e46e3bf1d8 /accel/tcg | |
| parent | d44789434bbf51bb4d4a3402066d281fa0efc88c (diff) | |
| download | qemu-cb10bc63b70737eafaceac1bf1d97730ce6d3393.zip qemu-cb10bc63b70737eafaceac1bf1d97730ce6d3393.tar.gz qemu-cb10bc63b70737eafaceac1bf1d97730ce6d3393.tar.bz2 | |
tcg: Vary the allocation size for TCGOp
We have been allocating a worst case number of arguments
to support calls. Instead, allow the size to vary.
By default leave space for 4 args, to maximize reuse,
but allow calls to increase the number of args to 32.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[PMD: Split patch in two]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221218211832.73312-3-philmd@linaro.org>
Diffstat (limited to 'accel/tcg')
| -rw-r--r-- | accel/tcg/plugin-gen.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c index 62e775d..c7d6514 100644 --- a/accel/tcg/plugin-gen.c +++ b/accel/tcg/plugin-gen.c @@ -258,12 +258,12 @@ static TCGOp *rm_ops(TCGOp *op) static TCGOp *copy_op_nocheck(TCGOp **begin_op, TCGOp *op) { - unsigned nargs = ARRAY_SIZE(op->args); + TCGOp *old_op = QTAILQ_NEXT(*begin_op, link); + unsigned nargs = old_op->nargs; - *begin_op = QTAILQ_NEXT(*begin_op, link); - tcg_debug_assert(*begin_op); - op = tcg_op_insert_after(tcg_ctx, op, (*begin_op)->opc, nargs); - memcpy(op->args, (*begin_op)->args, sizeof(op->args)); + *begin_op = old_op; + op = tcg_op_insert_after(tcg_ctx, op, old_op->opc, nargs); + memcpy(op->args, old_op->args, sizeof(op->args[0]) * nargs); return op; } |