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Clearer for loop error messages

This commit is contained in:
Zachary Snow 2020-07-25 10:35:03 -06:00
parent bd959d5d9e
commit 58da181af9
1 changed files with 20 additions and 18 deletions
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38
frontends/ast/simplify.cc
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@ -1687,25 +1687,27 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
body_ast->children.size() == 1 && body_ast->children.at(0)->type == AST_GENBLOCK)
body_ast = body_ast->children.at(0);
if (init_ast->type != AST_ASSIGN_EQ)
log_file_error(filename, location.first_line, "Unsupported 1st expression of generate for-loop!\n");
if (next_ast->type != AST_ASSIGN_EQ)
log_file_error(filename, location.first_line, "Unsupported 3rd expression of generate for-loop!\n");
const char* loop_type_str = "procedural";
const char* var_type_str = "register";
AstNodeType var_type = AST_WIRE;
if (type == AST_GENFOR) {
if (init_ast->children[0]->id2ast == NULL || init_ast->children[0]->id2ast->type != AST_GENVAR)
log_file_error(filename, location.first_line, "Left hand side of 1st expression of generate for-loop is not a gen var!\n");
if (next_ast->children[0]->id2ast == NULL || next_ast->children[0]->id2ast->type != AST_GENVAR)
log_file_error(filename, location.first_line, "Left hand side of 3rd expression of generate for-loop is not a gen var!\n");
} else {
if (init_ast->children[0]->id2ast == NULL || init_ast->children[0]->id2ast->type != AST_WIRE)
log_file_error(filename, location.first_line, "Left hand side of 1st expression of generate for-loop is not a register!\n");
if (next_ast->children[0]->id2ast == NULL || next_ast->children[0]->id2ast->type != AST_WIRE)
log_file_error(filename, location.first_line, "Left hand side of 3rd expression of generate for-loop is not a register!\n");
loop_type_str = "generate";
var_type_str = "genvar";
var_type = AST_GENVAR;
}
if (init_ast->type != AST_ASSIGN_EQ)
log_file_error(filename, location.first_line, "Unsupported 1st expression of %s for-loop!\n", loop_type_str);
if (next_ast->type != AST_ASSIGN_EQ)
log_file_error(filename, location.first_line, "Unsupported 3rd expression of %s for-loop!\n", loop_type_str);
if (init_ast->children[0]->id2ast == NULL || init_ast->children[0]->id2ast->type != var_type)
log_file_error(filename, location.first_line, "Left hand side of 1st expression of %s for-loop is not a %s!\n", loop_type_str, var_type_str);
if (next_ast->children[0]->id2ast == NULL || next_ast->children[0]->id2ast->type != var_type)
log_file_error(filename, location.first_line, "Left hand side of 3rd expression of %s for-loop is not a %s!\n", loop_type_str, var_type_str);
if (init_ast->children[0]->id2ast != next_ast->children[0]->id2ast)
log_file_error(filename, location.first_line, "Incompatible left-hand sides in 1st and 3rd expression of generate for-loop!\n");
log_file_error(filename, location.first_line, "Incompatible left-hand sides in 1st and 3rd expression of %s for-loop!\n", loop_type_str);
// eval 1st expression
AstNode *varbuf = init_ast->children[1]->clone();
@ -1717,7 +1719,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
}
if (varbuf->type != AST_CONSTANT)
log_file_error(filename, location.first_line, "Right hand side of 1st expression of generate for-loop is not constant!\n");
log_file_error(filename, location.first_line, "Right hand side of 1st expression of %s for-loop is not constant!\n", loop_type_str);
auto resolved = current_scope.at(init_ast->children[0]->str);
if (resolved->range_valid) {
@ -1758,7 +1760,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
}
if (buf->type != AST_CONSTANT)
log_file_error(filename, location.first_line, "2nd expression of generate for-loop is not constant!\n");
log_file_error(filename, location.first_line, "2nd expression of %s for-loop is not constant!\n", loop_type_str);
if (buf->integer == 0) {
delete buf;
@ -1804,7 +1806,7 @@ bool AstNode::simplify(bool const_fold, bool at_zero, bool in_lvalue, int stage,
}
if (buf->type != AST_CONSTANT)
log_file_error(filename, location.first_line, "Right hand side of 3rd expression of generate for-loop is not constant (%s)!\n", type2str(buf->type).c_str());
log_file_error(filename, location.first_line, "Right hand side of 3rd expression of %s for-loop is not constant (%s)!\n", loop_type_str, type2str(buf->type).c_str());
delete varbuf->children[0];
varbuf->children[0] = buf;