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This alters tcg_emit_op(), tcg_op_insert_before() and tcg_op_insert_after() prototypes. In tcg_op_alloc() ensure the number of arguments is in range. Signed-off-by: Richard Henderson [PMD: Extracted from bigger patch] Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Philippe Mathieu-Daudé --- accel/tcg/plugin-gen.c | 5 ++++- include/tcg/tcg-op.h | 2 +- include/tcg/tcg.h | 8 +++++--- tcg/optimize.c | 4 ++-- tcg/tcg-op-vec.c | 8 ++++---- tcg/tcg-op.c | 12 ++++++------ tcg/tcg.c | 30 +++++++++++++++++------------- 7 files changed, 39 insertions(+), 30 deletions(-) diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c index a6aaacd053..62e775d34d 100644 --- a/accel/tcg/plugin-gen.c +++ b/accel/tcg/plugin-gen.c @@ -258,10 +258,13 @@ static TCGOp *rm_ops(TCGOp *op) static TCGOp *copy_op_nocheck(TCGOp **begin_op, TCGOp *op) { + unsigned nargs = ARRAY_SIZE(op->args); + *begin_op = QTAILQ_NEXT(*begin_op, link); tcg_debug_assert(*begin_op); - op = tcg_op_insert_after(tcg_ctx, op, (*begin_op)->opc); + op = tcg_op_insert_after(tcg_ctx, op, (*begin_op)->opc, nargs); memcpy(op->args, (*begin_op)->args, sizeof(op->args)); + return op; } diff --git a/include/tcg/tcg-op.h b/include/tcg/tcg-op.h index 8176f194cb..79b1cf786f 100644 --- a/include/tcg/tcg-op.h +++ b/include/tcg/tcg-op.h @@ -818,7 +818,7 @@ static inline void tcg_gen_plugin_cb_start(unsigned from, unsigned type, static inline void tcg_gen_plugin_cb_end(void) { - tcg_emit_op(INDEX_op_plugin_cb_end); + tcg_emit_op(INDEX_op_plugin_cb_end, 0); } #if TARGET_LONG_BITS == 32 diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index 8bcd60d0ed..c55fa21a89 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -1014,10 +1014,12 @@ bool tcg_op_supported(TCGOpcode op); void tcg_gen_callN(void *func, TCGTemp *ret, int nargs, TCGTemp **args); -TCGOp *tcg_emit_op(TCGOpcode opc); +TCGOp *tcg_emit_op(TCGOpcode opc, unsigned nargs); void tcg_op_remove(TCGContext *s, TCGOp *op); -TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *op, TCGOpcode opc); -TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *op, TCGOpcode opc); +TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *op, + TCGOpcode opc, unsigned nargs); +TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *op, + TCGOpcode opc, unsigned nargs); /** * tcg_remove_ops_after: diff --git a/tcg/optimize.c b/tcg/optimize.c index ae081ab29c..1afd50175b 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -962,7 +962,7 @@ static bool fold_addsub2(OptContext *ctx, TCGOp *op, bool add) rh = op->args[1]; /* The proper opcode is supplied by tcg_opt_gen_mov. */ - op2 = tcg_op_insert_before(ctx->tcg, op, 0); + op2 = tcg_op_insert_before(ctx->tcg, op, 0, 2); tcg_opt_gen_movi(ctx, op, rl, al); tcg_opt_gen_movi(ctx, op2, rh, ah); @@ -1613,7 +1613,7 @@ static bool fold_multiply2(OptContext *ctx, TCGOp *op) rh = op->args[1]; /* The proper opcode is supplied by tcg_opt_gen_mov. */ - op2 = tcg_op_insert_before(ctx->tcg, op, 0); + op2 = tcg_op_insert_before(ctx->tcg, op, 0, 2); tcg_opt_gen_movi(ctx, op, rl, l); tcg_opt_gen_movi(ctx, op2, rh, h); diff --git a/tcg/tcg-op-vec.c b/tcg/tcg-op-vec.c index 5bf100ea7d..966d41d65a 100644 --- a/tcg/tcg-op-vec.c +++ b/tcg/tcg-op-vec.c @@ -152,7 +152,7 @@ bool tcg_can_emit_vecop_list(const TCGOpcode *list, void vec_gen_2(TCGOpcode opc, TCGType type, unsigned vece, TCGArg r, TCGArg a) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 2); TCGOP_VECL(op) = type - TCG_TYPE_V64; TCGOP_VECE(op) = vece; op->args[0] = r; @@ -162,7 +162,7 @@ void vec_gen_2(TCGOpcode opc, TCGType type, unsigned vece, TCGArg r, TCGArg a) void vec_gen_3(TCGOpcode opc, TCGType type, unsigned vece, TCGArg r, TCGArg a, TCGArg b) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 3); TCGOP_VECL(op) = type - TCG_TYPE_V64; TCGOP_VECE(op) = vece; op->args[0] = r; @@ -173,7 +173,7 @@ void vec_gen_3(TCGOpcode opc, TCGType type, unsigned vece, void vec_gen_4(TCGOpcode opc, TCGType type, unsigned vece, TCGArg r, TCGArg a, TCGArg b, TCGArg c) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 4); TCGOP_VECL(op) = type - TCG_TYPE_V64; TCGOP_VECE(op) = vece; op->args[0] = r; @@ -185,7 +185,7 @@ void vec_gen_4(TCGOpcode opc, TCGType type, unsigned vece, static void vec_gen_6(TCGOpcode opc, TCGType type, unsigned vece, TCGArg r, TCGArg a, TCGArg b, TCGArg c, TCGArg d, TCGArg e) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 6); TCGOP_VECL(op) = type - TCG_TYPE_V64; TCGOP_VECE(op) = vece; op->args[0] = r; diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index 6168327030..cd1cd4e736 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -33,20 +33,20 @@ void tcg_gen_op1(TCGOpcode opc, TCGArg a1) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 1); op->args[0] = a1; } void tcg_gen_op2(TCGOpcode opc, TCGArg a1, TCGArg a2) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 2); op->args[0] = a1; op->args[1] = a2; } void tcg_gen_op3(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 3); op->args[0] = a1; op->args[1] = a2; op->args[2] = a3; @@ -54,7 +54,7 @@ void tcg_gen_op3(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3) void tcg_gen_op4(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, TCGArg a4) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 4); op->args[0] = a1; op->args[1] = a2; op->args[2] = a3; @@ -64,7 +64,7 @@ void tcg_gen_op4(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, TCGArg a4) void tcg_gen_op5(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, TCGArg a4, TCGArg a5) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 5); op->args[0] = a1; op->args[1] = a2; op->args[2] = a3; @@ -75,7 +75,7 @@ void tcg_gen_op5(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, void tcg_gen_op6(TCGOpcode opc, TCGArg a1, TCGArg a2, TCGArg a3, TCGArg a4, TCGArg a5, TCGArg a6) { - TCGOp *op = tcg_emit_op(opc); + TCGOp *op = tcg_emit_op(opc, 6); op->args[0] = a1; op->args[1] = a2; op->args[2] = a3; diff --git a/tcg/tcg.c b/tcg/tcg.c index aae4046e1b..3f172cb1d6 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1479,7 +1479,7 @@ bool tcg_op_supported(TCGOpcode op) and endian swap in tcg_reg_alloc_call(). */ void tcg_gen_callN(void *func, TCGTemp *ret, int nargs, TCGTemp **args) { - int i, real_args, nb_rets, pi; + int i, real_args, nb_rets, pi, max_args; unsigned typemask; const TCGHelperInfo *info; TCGOp *op; @@ -1513,7 +1513,8 @@ void tcg_gen_callN(void *func, TCGTemp *ret, int nargs, TCGTemp **args) } } - op = tcg_emit_op(INDEX_op_call); + max_args = ARRAY_SIZE(op->args); + op = tcg_emit_op(INDEX_op_call, max_args); pi = 0; if (ret != NULL) { @@ -1590,7 +1591,7 @@ void tcg_gen_callN(void *func, TCGTemp *ret, int nargs, TCGTemp **args) /* Make sure the fields didn't overflow. */ tcg_debug_assert(TCGOP_CALLI(op) == real_args); - tcg_debug_assert(pi <= ARRAY_SIZE(op->args)); + tcg_debug_assert(pi <= max_args); if (TCG_TARGET_CALL_ARG_I32 == TCG_CALL_ARG_EXTEND) { for (i = 0; i < nargs; ++i) { @@ -2294,11 +2295,12 @@ void tcg_remove_ops_after(TCGOp *op) } } -static TCGOp *tcg_op_alloc(TCGOpcode opc) +static TCGOp *tcg_op_alloc(TCGOpcode opc, unsigned nargs) { TCGContext *s = tcg_ctx; TCGOp *op; + assert(nargs < ARRAY_SIZE(op->args)); if (likely(QTAILQ_EMPTY(&s->free_ops))) { op = tcg_malloc(sizeof(TCGOp)); } else { @@ -2312,23 +2314,25 @@ static TCGOp *tcg_op_alloc(TCGOpcode opc) return op; } -TCGOp *tcg_emit_op(TCGOpcode opc) +TCGOp *tcg_emit_op(TCGOpcode opc, unsigned nargs) { - TCGOp *op = tcg_op_alloc(opc); + TCGOp *op = tcg_op_alloc(opc, nargs); QTAILQ_INSERT_TAIL(&tcg_ctx->ops, op, link); return op; } -TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *old_op, TCGOpcode opc) +TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *old_op, + TCGOpcode opc, unsigned nargs) { - TCGOp *new_op = tcg_op_alloc(opc); + TCGOp *new_op = tcg_op_alloc(opc, nargs); QTAILQ_INSERT_BEFORE(old_op, new_op, link); return new_op; } -TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *old_op, TCGOpcode opc) +TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *old_op, + TCGOpcode opc, unsigned nargs) { - TCGOp *new_op = tcg_op_alloc(opc); + TCGOp *new_op = tcg_op_alloc(opc, nargs); QTAILQ_INSERT_AFTER(&s->ops, old_op, new_op, link); return new_op; } @@ -2937,7 +2941,7 @@ static bool liveness_pass_2(TCGContext *s) TCGOpcode lopc = (arg_ts->type == TCG_TYPE_I32 ? INDEX_op_ld_i32 : INDEX_op_ld_i64); - TCGOp *lop = tcg_op_insert_before(s, op, lopc); + TCGOp *lop = tcg_op_insert_before(s, op, lopc, 3); lop->args[0] = temp_arg(dir_ts); lop->args[1] = temp_arg(arg_ts->mem_base); @@ -3003,7 +3007,7 @@ static bool liveness_pass_2(TCGContext *s) TCGOpcode sopc = (arg_ts->type == TCG_TYPE_I32 ? INDEX_op_st_i32 : INDEX_op_st_i64); - TCGOp *sop = tcg_op_insert_after(s, op, sopc); + TCGOp *sop = tcg_op_insert_after(s, op, sopc, 3); TCGTemp *out_ts = dir_ts; if (IS_DEAD_ARG(0)) { @@ -3039,7 +3043,7 @@ static bool liveness_pass_2(TCGContext *s) TCGOpcode sopc = (arg_ts->type == TCG_TYPE_I32 ? INDEX_op_st_i32 : INDEX_op_st_i64); - TCGOp *sop = tcg_op_insert_after(s, op, sopc); + TCGOp *sop = tcg_op_insert_after(s, op, sopc, 3); sop->args[0] = temp_arg(dir_ts); sop->args[1] = temp_arg(arg_ts->mem_base);