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140 lines
5.5 KiB
140 lines
5.5 KiB
/******************************************************************************
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* Copyright (C) 2015 Dibyendu Majumdar
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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******************************************************************************/
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#include <ravi_gccjit.h>
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void ravi_emit_TFORCALL(ravi_function_def_t *def, int A, int B, int C, int j,
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int jA, int pc) {
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// case OP_TFORCALL: {
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// StkId cb = ra + 3; /* call base */
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// setobjs2s(L, cb + 2, ra + 2);
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// setobjs2s(L, cb + 1, ra + 1);
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// setobjs2s(L, cb, ra);
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// L->top = cb + 3; /* func. + 2 args (state and index) */
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// Protect(luaD_call(L, cb, GETARG_C(i), 1));
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// L->top = ci->top;
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// i = *(ci->u.l.savedpc++); /* go to next instruction */
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// ra = RA(i);
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// lua_assert(GET_OPCODE(i) == OP_TFORLOOP);
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// goto l_tforloop;
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// }
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// case OP_TFORLOOP: {
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// l_tforloop:
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// if (!ttisnil(ra + 1)) { /* continue loop? */
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// setobjs2s(L, ra, ra + 1); /* save control variable */
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// ci->u.l.savedpc += GETARG_sBx(i); /* jump back */
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// }
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// } break;
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(void)B;
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// Load pointer to base
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ravi_emit_load_base(def);
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// Get pointer to register A
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gcc_jit_lvalue *ra = ravi_emit_get_register(def, A);
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gcc_jit_lvalue *ra1 = ravi_emit_get_register(def, A + 1);
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gcc_jit_lvalue *ra2 = ravi_emit_get_register(def, A + 2);
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gcc_jit_lvalue *cb = ravi_emit_get_register(def, A + 3);
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gcc_jit_lvalue *cb1 = ravi_emit_get_register(def, A + 4);
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gcc_jit_lvalue *cb2 = ravi_emit_get_register(def, A + 5);
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ravi_emit_struct_assign(def, cb2, ra2);
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ravi_emit_struct_assign(def, cb1, ra1);
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ravi_emit_struct_assign(def, cb, ra);
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// L->top = cb + 3; /* func. + 2 args (state and index) */
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ravi_emit_set_L_top_toreg(def, A + 6);
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// Protect(luaD_call(L, cb, GETARG_C(i)));
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gcc_jit_block_add_eval(
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def->current_block, NULL,
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ravi_function_call3_rvalue(
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def, def->ravi->types->luaD_callT, gcc_jit_param_as_rvalue(def->L),
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gcc_jit_lvalue_get_address(cb, NULL),
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gcc_jit_context_new_rvalue_from_int(def->function_context,
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def->ravi->types->C_intT, C)));
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// reload base
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ravi_emit_load_base(def);
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// L->top = ci->top;
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ravi_emit_refresh_L_top(def);
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ra = ravi_emit_get_register(def, jA);
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ra1 = ravi_emit_get_register(def, jA + 1);
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gcc_jit_lvalue *type = ravi_emit_load_type(def, ra1);
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// Test if type != LUA_TNIL (0)
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gcc_jit_rvalue *isnotnil = ravi_emit_is_not_value_of_type(
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def, gcc_jit_lvalue_as_rvalue(type), LUA__TNIL);
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gcc_jit_block *then_block = gcc_jit_function_new_block(
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def->jit_function, unique_name(def, "OP_TFORCALL_if_not_nil", pc));
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gcc_jit_block *else_block = gcc_jit_function_new_block(
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def->jit_function, unique_name(def, "OP_TFORCALL_if_nil", pc));
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ravi_emit_conditional_branch(def, isnotnil, then_block, else_block);
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ravi_set_current_block(def, then_block);
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ravi_emit_struct_assign(def, ra, ra1);
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// Do the jump
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ravi_emit_branch(def, def->jmp_targets[j]->jmp);
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// Add the else block and make it current so that the next instruction flows
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// here
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ravi_set_current_block(def, else_block);
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}
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void ravi_emit_TFORLOOP(ravi_function_def_t *def, int A, int j, int pc) {
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// case OP_TFORLOOP: {
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// l_tforloop:
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// if (!ttisnil(ra + 1)) { /* continue loop? */
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// setobjs2s(L, ra, ra + 1); /* save control variable */
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// ci->u.l.savedpc += GETARG_sBx(i); /* jump back */
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// }
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// } break;
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// Load pointer to base
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ravi_emit_load_base(def);
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// Get pointer to register A
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gcc_jit_lvalue *ra = ravi_emit_get_register(def, A);
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gcc_jit_lvalue *ra1 = ravi_emit_get_register(def, A + 1);
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gcc_jit_lvalue *type = ravi_emit_load_type(def, ra1);
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// Test if type != LUA_TNIL (0)
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gcc_jit_rvalue *isnotnil = ravi_emit_is_not_value_of_type(
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def, gcc_jit_lvalue_as_rvalue(type), LUA__TNIL);
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gcc_jit_block *then_block = gcc_jit_function_new_block(
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def->jit_function, unique_name(def, "OP_TFORLOOP_if_not_nil", pc));
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gcc_jit_block *else_block = gcc_jit_function_new_block(
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def->jit_function, unique_name(def, "OP_TFORLOOP_if_nil", pc));
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ravi_emit_conditional_branch(def, isnotnil, then_block, else_block);
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ravi_set_current_block(def, then_block);
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ravi_emit_struct_assign(def, ra, ra1);
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// Do the jump
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ravi_emit_branch(def, def->jmp_targets[j]->jmp);
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// Add the else block and make it current so that the next instruction flows
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// here
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ravi_set_current_block(def, else_block);
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} |