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Factor out assignment setup in ast_to_hir.

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This commit is contained in:
Eric Anholt
2010-03-26 11:53:37 -07:00
committed by Ian Romanick
parent e65e12fdbc
commit 10a6852186
1 changed files with 35 additions and 51 deletions
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86
ast_to_hir.cpp
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@@ -359,6 +359,33 @@ validate_assignment(const glsl_type *lhs_type, ir_rvalue *rhs)
return NULL;
}
ir_rvalue *
do_assignment(exec_list *instructions, struct _mesa_glsl_parse_state *state,
ir_rvalue *lhs, ir_rvalue *rhs,
YYLTYPE lhs_loc)
{
bool error_emitted = (lhs->type->is_error() || rhs->type->is_error());
if (!error_emitted) {
/* FINISHME: This does not handle 'foo.bar.a.b.c[5].d = 5' */
if (!lhs->is_lvalue()) {
_mesa_glsl_error(& lhs_loc, state, "non-lvalue in assignment");
error_emitted = true;
}
}
ir_rvalue *new_rhs = validate_assignment(lhs->type, rhs);
if (new_rhs == NULL) {
_mesa_glsl_error(& lhs_loc, state, "type mismatch");
} else {
rhs = new_rhs;
}
ir_instruction *tmp = new ir_assignment(lhs, rhs, NULL);
instructions->push_tail(tmp);
return rhs;
}
ir_rvalue *
ast_node::hir(exec_list *instructions,
@@ -445,30 +472,10 @@ ast_expression::hir(exec_list *instructions,
op[0] = this->subexpressions[0]->hir(instructions, state);
op[1] = this->subexpressions[1]->hir(instructions, state);
error_emitted = op[0]->type->is_error() || op[1]->type->is_error();
type = op[0]->type;
if (!error_emitted) {
YYLTYPE loc;
/* FINISHME: This does not handle 'foo.bar.a.b.c[5].d = 5' */
if (!op[0]->is_lvalue()) {
_mesa_glsl_error(& loc, state, "non-lvalue in assignment");
error_emitted = true;
type = glsl_type::error_type;
}
}
ir_instruction *rhs = validate_assignment(op[0]->type, op[1]);
if (rhs == NULL) {
type = glsl_type::error_type;
rhs = op[1];
}
ir_instruction *tmp = new ir_assignment(op[0], op[1], NULL);
instructions->push_tail(tmp);
result = op[0];
result = do_assignment(instructions, state, op[0], op[1],
this->subexpressions[0]->get_location());
error_emitted = result->type->is_error();
type = result->type;
break;
}
@@ -575,8 +582,6 @@ ast_expression::hir(exec_list *instructions,
op[0] = this->subexpressions[0]->hir(instructions, state);
op[1] = this->subexpressions[1]->hir(instructions, state);
error_emitted = op[0]->type->is_error() || op[1]->type->is_error();
type = arithmetic_result_type(op[0]->type, op[1]->type,
(this->oper == ast_mul_assign),
state);
@@ -584,37 +589,16 @@ ast_expression::hir(exec_list *instructions,
ir_rvalue *temp_rhs = new ir_expression(operations[this->oper], type,
op[0], op[1]);
/* FINISHME: This is copied from ast_assign above. It should
* FINISHME: probably be consolidated.
*/
error_emitted = op[0]->type->is_error() || temp_rhs->type->is_error();
type = op[0]->type;
if (!error_emitted) {
YYLTYPE loc;
if (!op[0]->is_lvalue()) {
_mesa_glsl_error(& loc, state, "non-lvalue in assignment");
error_emitted = true;
type = glsl_type::error_type;
}
}
ir_rvalue *rhs = validate_assignment(op[0]->type, temp_rhs);
if (rhs == NULL) {
type = glsl_type::error_type;
rhs = temp_rhs;
}
ir_instruction *tmp = new ir_assignment(op[0], rhs, NULL);
instructions->push_tail(tmp);
result = do_assignment(instructions, state, op[0], temp_rhs,
this->subexpressions[0]->get_location());
type = result->type;
error_emitted = (op[0]->type->is_error());
/* GLSL 1.10 does not allow array assignment. However, we don't have to
* explicitly test for this because none of the binary expression
* operators allow array operands either.
*/
result = op[0];
break;
}