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tcg: Merge opcode arguments into TCGOp

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Rather than have a separate buffer of 10*max_ops entries,
give each opcode 10 entries.  The result is actually a bit
smaller and should have slightly more cache locality.

Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-12-08 10:52:57 -08:00 • committed by Richard Henderson
parent 3d7196d43b
commit 75e8b9b7aa
4 changed files with 98 additions and 142 deletions
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99
tcg/tcg-op.c
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@ -46,107 +46,78 @@ extern TCGv_i32 TCGV_HIGH_link_error(TCGv_i64);
Up to and including filling in the forward link immediately. We'll do
proper termination of the end of the list after we finish translation. */
static void tcg_emit_op(TCGContext *ctx, TCGOpcode opc, int args)
static inline TCGOp *tcg_emit_op(TCGContext *ctx, TCGOpcode opc)
{
int oi = ctx->gen_next_op_idx;
int ni = oi + 1;
int pi = oi - 1;
TCGOp *op = &ctx->gen_op_buf[oi];
tcg_debug_assert(oi < OPC_BUF_SIZE);
ctx->gen_op_buf[0].prev = oi;
ctx->gen_next_op_idx = ni;
ctx->gen_op_buf[oi] = (TCGOp){
.opc = opc,
.args = args,
.prev = pi,
.next = ni
};
memset(op, 0, offsetof(TCGOp, args));
op->opc = opc;
op->prev = pi;
op->next = ni;
return op;
}
void tcg_gen_op1(TCGContext *ctx, TCGOpcode opc, TCGArg a1)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 1 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 1;
ctx->gen_opparam_buf[pi] = a1;
tcg_emit_op(ctx, opc, pi);
TCGOp *op = tcg_emit_op(ctx, opc);
op->args[0] = a1;
}
void tcg_gen_op2(TCGContext *ctx, TCGOpcode opc, TCGArg a1, TCGArg a2)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 2 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 2;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
tcg_emit_op(ctx, opc, pi);
TCGOp *op = tcg_emit_op(ctx, opc);
op->args[0] = a1;
op->args[1] = a2;
}
void tcg_gen_op3(TCGContext *ctx, TCGOpcode opc, TCGArg a1,
TCGArg a2, TCGArg a3)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 3 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 3;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
ctx->gen_opparam_buf[pi + 2] = a3;
tcg_emit_op(ctx, opc, pi);
TCGOp *op = tcg_emit_op(ctx, opc);
op->args[0] = a1;
op->args[1] = a2;
op->args[2] = a3;
}
void tcg_gen_op4(TCGContext *ctx, TCGOpcode opc, TCGArg a1,
TCGArg a2, TCGArg a3, TCGArg a4)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 4 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 4;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
ctx->gen_opparam_buf[pi + 2] = a3;
ctx->gen_opparam_buf[pi + 3] = a4;
tcg_emit_op(ctx, opc, pi);
TCGOp *op = tcg_emit_op(ctx, opc);
op->args[0] = a1;
op->args[1] = a2;
op->args[2] = a3;
op->args[3] = a4;
}
void tcg_gen_op5(TCGContext *ctx, TCGOpcode opc, TCGArg a1,
TCGArg a2, TCGArg a3, TCGArg a4, TCGArg a5)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 5 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 5;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
ctx->gen_opparam_buf[pi + 2] = a3;
ctx->gen_opparam_buf[pi + 3] = a4;
ctx->gen_opparam_buf[pi + 4] = a5;
tcg_emit_op(ctx, opc, pi);
TCGOp *op = tcg_emit_op(ctx, opc);
op->args[0] = a1;
op->args[1] = a2;
op->args[2] = a3;
op->args[3] = a4;
op->args[4] = a5;
}
void tcg_gen_op6(TCGContext *ctx, TCGOpcode opc, TCGArg a1, TCGArg a2,
TCGArg a3, TCGArg a4, TCGArg a5, TCGArg a6)
{
int pi = ctx->gen_next_parm_idx;
tcg_debug_assert(pi + 6 <= OPPARAM_BUF_SIZE);
ctx->gen_next_parm_idx = pi + 6;
ctx->gen_opparam_buf[pi + 0] = a1;
ctx->gen_opparam_buf[pi + 1] = a2;
ctx->gen_opparam_buf[pi + 2] = a3;
ctx->gen_opparam_buf[pi + 3] = a4;
ctx->gen_opparam_buf[pi + 4] = a5;
ctx->gen_opparam_buf[pi + 5] = a6;
tcg_emit_op(ctx, opc, pi);
TCGOp *op = tcg_emit_op(ctx, opc);
op->args[0] = a1;
op->args[1] = a2;
op->args[2] = a3;
op->args[3] = a4;
op->args[4] = a5;
op->args[5] = a6;
}
void tcg_gen_mb(TCGBar mb_type)