#include <stdlib.h>
#include <ctype.h>
-#ifdef __INTEL_COMPILER
+#if defined(__INTEL_COMPILER)
#include <mathimf.h>
+#elif defined(__CYGWIN__)
+#include "win32/cygwin_math_ext.h"
#else
#include <math.h>
#endif
#include "adt/error.h"
+#include "adt/util.h"
struct obstack ast_obstack;
static unsigned get_expression_precedence(expression_kind_t kind)
{
static const unsigned prec[] = {
- [EXPR_UNKNOWN] = PREC_PRIMARY,
- [EXPR_INVALID] = PREC_PRIMARY,
- [EXPR_REFERENCE] = PREC_PRIMARY,
- [EXPR_REFERENCE_ENUM_VALUE] = PREC_PRIMARY,
- [EXPR_CHARACTER_CONSTANT] = PREC_PRIMARY,
- [EXPR_WIDE_CHARACTER_CONSTANT] = PREC_PRIMARY,
- [EXPR_CONST] = PREC_PRIMARY,
- [EXPR_STRING_LITERAL] = PREC_PRIMARY,
- [EXPR_WIDE_STRING_LITERAL] = PREC_PRIMARY,
- [EXPR_COMPOUND_LITERAL] = PREC_UNARY,
- [EXPR_CALL] = PREC_POSTFIX,
- [EXPR_CONDITIONAL] = PREC_CONDITIONAL,
- [EXPR_SELECT] = PREC_POSTFIX,
- [EXPR_ARRAY_ACCESS] = PREC_POSTFIX,
- [EXPR_SIZEOF] = PREC_UNARY,
- [EXPR_CLASSIFY_TYPE] = PREC_UNARY,
- [EXPR_ALIGNOF] = PREC_UNARY,
-
- [EXPR_FUNCNAME] = PREC_PRIMARY,
- [EXPR_BUILTIN_SYMBOL] = PREC_PRIMARY,
- [EXPR_BUILTIN_CONSTANT_P] = PREC_PRIMARY,
- [EXPR_BUILTIN_PREFETCH] = PREC_PRIMARY,
- [EXPR_OFFSETOF] = PREC_PRIMARY,
- [EXPR_VA_START] = PREC_PRIMARY,
- [EXPR_VA_ARG] = PREC_PRIMARY,
- [EXPR_STATEMENT] = PREC_PRIMARY,
- [EXPR_LABEL_ADDRESS] = PREC_PRIMARY,
-
- [EXPR_UNARY_NEGATE] = PREC_UNARY,
- [EXPR_UNARY_PLUS] = PREC_UNARY,
- [EXPR_UNARY_BITWISE_NEGATE] = PREC_UNARY,
- [EXPR_UNARY_NOT] = PREC_UNARY,
- [EXPR_UNARY_DEREFERENCE] = PREC_UNARY,
- [EXPR_UNARY_TAKE_ADDRESS] = PREC_UNARY,
- [EXPR_UNARY_POSTFIX_INCREMENT] = PREC_POSTFIX,
- [EXPR_UNARY_POSTFIX_DECREMENT] = PREC_POSTFIX,
- [EXPR_UNARY_PREFIX_INCREMENT] = PREC_UNARY,
- [EXPR_UNARY_PREFIX_DECREMENT] = PREC_UNARY,
- [EXPR_UNARY_CAST] = PREC_UNARY,
- [EXPR_UNARY_CAST_IMPLICIT] = PREC_UNARY,
- [EXPR_UNARY_ASSUME] = PREC_PRIMARY,
- [EXPR_UNARY_DELETE] = PREC_UNARY,
- [EXPR_UNARY_DELETE_ARRAY] = PREC_UNARY,
- [EXPR_UNARY_THROW] = PREC_ASSIGNMENT,
-
- [EXPR_BINARY_ADD] = PREC_ADDITIVE,
- [EXPR_BINARY_SUB] = PREC_ADDITIVE,
- [EXPR_BINARY_MUL] = PREC_MULTIPLICATIVE,
- [EXPR_BINARY_DIV] = PREC_MULTIPLICATIVE,
- [EXPR_BINARY_MOD] = PREC_MULTIPLICATIVE,
- [EXPR_BINARY_EQUAL] = PREC_EQUALITY,
- [EXPR_BINARY_NOTEQUAL] = PREC_EQUALITY,
- [EXPR_BINARY_LESS] = PREC_RELATIONAL,
- [EXPR_BINARY_LESSEQUAL] = PREC_RELATIONAL,
- [EXPR_BINARY_GREATER] = PREC_RELATIONAL,
- [EXPR_BINARY_GREATEREQUAL] = PREC_RELATIONAL,
- [EXPR_BINARY_BITWISE_AND] = PREC_AND,
- [EXPR_BINARY_BITWISE_OR] = PREC_OR,
- [EXPR_BINARY_BITWISE_XOR] = PREC_XOR,
- [EXPR_BINARY_LOGICAL_AND] = PREC_LOGICAL_AND,
- [EXPR_BINARY_LOGICAL_OR] = PREC_LOGICAL_OR,
- [EXPR_BINARY_SHIFTLEFT] = PREC_SHIFT,
- [EXPR_BINARY_SHIFTRIGHT] = PREC_SHIFT,
- [EXPR_BINARY_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_MUL_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_DIV_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_MOD_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_ADD_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_SUB_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_SHIFTLEFT_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_SHIFTRIGHT_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_BITWISE_AND_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_BITWISE_XOR_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_BITWISE_OR_ASSIGN] = PREC_ASSIGNMENT,
- [EXPR_BINARY_COMMA] = PREC_EXPRESSION,
-
- [EXPR_BINARY_BUILTIN_EXPECT] = PREC_PRIMARY,
- [EXPR_BINARY_ISGREATER] = PREC_PRIMARY,
- [EXPR_BINARY_ISGREATEREQUAL] = PREC_PRIMARY,
- [EXPR_BINARY_ISLESS] = PREC_PRIMARY,
- [EXPR_BINARY_ISLESSEQUAL] = PREC_PRIMARY,
- [EXPR_BINARY_ISLESSGREATER] = PREC_PRIMARY,
- [EXPR_BINARY_ISUNORDERED] = PREC_PRIMARY
+ [EXPR_UNKNOWN] = PREC_PRIMARY,
+ [EXPR_INVALID] = PREC_PRIMARY,
+ [EXPR_REFERENCE] = PREC_PRIMARY,
+ [EXPR_REFERENCE_ENUM_VALUE] = PREC_PRIMARY,
+ [EXPR_CHARACTER_CONSTANT] = PREC_PRIMARY,
+ [EXPR_WIDE_CHARACTER_CONSTANT] = PREC_PRIMARY,
+ [EXPR_CONST] = PREC_PRIMARY,
+ [EXPR_STRING_LITERAL] = PREC_PRIMARY,
+ [EXPR_WIDE_STRING_LITERAL] = PREC_PRIMARY,
+ [EXPR_COMPOUND_LITERAL] = PREC_UNARY,
+ [EXPR_CALL] = PREC_POSTFIX,
+ [EXPR_CONDITIONAL] = PREC_CONDITIONAL,
+ [EXPR_SELECT] = PREC_POSTFIX,
+ [EXPR_ARRAY_ACCESS] = PREC_POSTFIX,
+ [EXPR_SIZEOF] = PREC_UNARY,
+ [EXPR_CLASSIFY_TYPE] = PREC_UNARY,
+ [EXPR_ALIGNOF] = PREC_UNARY,
+
+ [EXPR_FUNCNAME] = PREC_PRIMARY,
+ [EXPR_BUILTIN_CONSTANT_P] = PREC_PRIMARY,
+ [EXPR_BUILTIN_TYPES_COMPATIBLE_P] = PREC_PRIMARY,
+ [EXPR_OFFSETOF] = PREC_PRIMARY,
+ [EXPR_VA_START] = PREC_PRIMARY,
+ [EXPR_VA_ARG] = PREC_PRIMARY,
+ [EXPR_VA_COPY] = PREC_PRIMARY,
+ [EXPR_STATEMENT] = PREC_PRIMARY,
+ [EXPR_LABEL_ADDRESS] = PREC_PRIMARY,
+
+ [EXPR_UNARY_NEGATE] = PREC_UNARY,
+ [EXPR_UNARY_PLUS] = PREC_UNARY,
+ [EXPR_UNARY_BITWISE_NEGATE] = PREC_UNARY,
+ [EXPR_UNARY_NOT] = PREC_UNARY,
+ [EXPR_UNARY_DEREFERENCE] = PREC_UNARY,
+ [EXPR_UNARY_TAKE_ADDRESS] = PREC_UNARY,
+ [EXPR_UNARY_POSTFIX_INCREMENT] = PREC_POSTFIX,
+ [EXPR_UNARY_POSTFIX_DECREMENT] = PREC_POSTFIX,
+ [EXPR_UNARY_PREFIX_INCREMENT] = PREC_UNARY,
+ [EXPR_UNARY_PREFIX_DECREMENT] = PREC_UNARY,
+ [EXPR_UNARY_CAST] = PREC_UNARY,
+ [EXPR_UNARY_CAST_IMPLICIT] = PREC_UNARY,
+ [EXPR_UNARY_ASSUME] = PREC_PRIMARY,
+ [EXPR_UNARY_DELETE] = PREC_UNARY,
+ [EXPR_UNARY_DELETE_ARRAY] = PREC_UNARY,
+ [EXPR_UNARY_THROW] = PREC_ASSIGNMENT,
+
+ [EXPR_BINARY_ADD] = PREC_ADDITIVE,
+ [EXPR_BINARY_SUB] = PREC_ADDITIVE,
+ [EXPR_BINARY_MUL] = PREC_MULTIPLICATIVE,
+ [EXPR_BINARY_DIV] = PREC_MULTIPLICATIVE,
+ [EXPR_BINARY_MOD] = PREC_MULTIPLICATIVE,
+ [EXPR_BINARY_EQUAL] = PREC_EQUALITY,
+ [EXPR_BINARY_NOTEQUAL] = PREC_EQUALITY,
+ [EXPR_BINARY_LESS] = PREC_RELATIONAL,
+ [EXPR_BINARY_LESSEQUAL] = PREC_RELATIONAL,
+ [EXPR_BINARY_GREATER] = PREC_RELATIONAL,
+ [EXPR_BINARY_GREATEREQUAL] = PREC_RELATIONAL,
+ [EXPR_BINARY_BITWISE_AND] = PREC_AND,
+ [EXPR_BINARY_BITWISE_OR] = PREC_OR,
+ [EXPR_BINARY_BITWISE_XOR] = PREC_XOR,
+ [EXPR_BINARY_LOGICAL_AND] = PREC_LOGICAL_AND,
+ [EXPR_BINARY_LOGICAL_OR] = PREC_LOGICAL_OR,
+ [EXPR_BINARY_SHIFTLEFT] = PREC_SHIFT,
+ [EXPR_BINARY_SHIFTRIGHT] = PREC_SHIFT,
+ [EXPR_BINARY_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_MUL_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_DIV_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_MOD_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_ADD_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_SUB_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_SHIFTLEFT_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_SHIFTRIGHT_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_BITWISE_AND_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_BITWISE_XOR_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_BITWISE_OR_ASSIGN] = PREC_ASSIGNMENT,
+ [EXPR_BINARY_COMMA] = PREC_EXPRESSION,
+
+ [EXPR_BINARY_ISGREATER] = PREC_PRIMARY,
+ [EXPR_BINARY_ISGREATEREQUAL] = PREC_PRIMARY,
+ [EXPR_BINARY_ISLESS] = PREC_PRIMARY,
+ [EXPR_BINARY_ISLESSEQUAL] = PREC_PRIMARY,
+ [EXPR_BINARY_ISLESSGREATER] = PREC_PRIMARY,
+ [EXPR_BINARY_ISUNORDERED] = PREC_PRIMARY
};
- assert((unsigned)kind < (sizeof(prec)/sizeof(prec[0])));
+ assert((size_t)kind < lengthof(prec));
unsigned res = prec[kind];
assert(res != PREC_BOTTOM);
*/
static void print_const(const const_expression_t *cnst)
{
- if(cnst->base.type == NULL)
+ if (cnst->base.type == NULL)
return;
const type_t *const type = skip_typeref(cnst->base.type);
fputc(border, out);
const char *end = string->begin + string->size - skip;
for (const char *c = string->begin; c != end; ++c) {
- if (*c == border) {
+ unsigned char const tc = *c;
+ if (tc == border) {
fputc('\\', out);
}
- switch (*c) {
+ switch (tc) {
case '\\': fputs("\\\\", out); break;
case '\a': fputs("\\a", out); break;
case '\b': fputs("\\b", out); break;
if (c_mode & _GNUC) {
fputs("\\e", out); break;
}
- /*fallthrough*/
+ /* FALLTHROUGH */
default:
- if(!isprint(*c)) {
- fprintf(out, "\\%03o", (unsigned)*c);
- break;
+ if (tc < 0x80 && !isprint(tc)) {
+ fprintf(out, "\\%03o", (unsigned)tc);
+ } else {
+ fputc(tc, out);
}
- fputc(*c, out);
break;
}
}
if (c_mode & _GNUC) {
fputs("\\e", out); break;
}
- /*fallthrough*/
+ /* FALLTHROUGH */
default: {
const unsigned tc = *c;
if (tc < 0x80U) {
- if (!isprint(*c)) {
- fprintf(out, "\\%03o", (char)*c);
- } else {
+ if (isprint(*c)) {
fputc(*c, out);
+ } else {
+ fprintf(out, "\\%03o", tc);
}
} else if (tc < 0x800) {
fputc(0xC0 | (tc >> 6), out);
/**
* Prints a predefined symbol.
*/
-static void print_funcname(
- const funcname_expression_t *funcname)
+static void print_funcname(const funcname_expression_t *funcname)
{
const char *s = "";
switch (funcname->kind) {
case FUNCNAME_FUNCSIG: s = "__FUNCSIG__"; break;
case FUNCNAME_FUNCDNAME: s = "__FUNCDNAME__"; break;
}
- fputc('"', out);
fputs(s, out);
- fputc('"', out);
}
static void print_wide_string_literal(
print_initializer(expression->initializer);
}
+static void print_assignment_expression(const expression_t *const expr)
+{
+ print_expression_prec(expr, PREC_ASSIGNMENT);
+}
+
/**
* Prints a call expression.
*
*/
static void print_call_expression(const call_expression_t *call)
{
- unsigned prec = get_expression_precedence(call->base.kind);
- print_expression_prec(call->function, prec);
+ print_expression_prec(call->function, PREC_POSTFIX);
fputc('(', out);
call_argument_t *argument = call->arguments;
int first = 1;
- while(argument != NULL) {
- if(!first) {
+ while (argument != NULL) {
+ if (!first) {
fputs(", ", out);
} else {
first = 0;
}
- print_expression_prec(argument->expression, PREC_ASSIGNMENT);
+ print_assignment_expression(argument->expression);
argument = argument->next;
}
unsigned prec = get_expression_precedence(binexpr->base.kind);
int r2l = right_to_left(prec);
- if(binexpr->base.kind == EXPR_BINARY_BUILTIN_EXPECT) {
- fputs("__builtin_expect(", out);
- print_expression_prec(binexpr->left, prec);
- fputs(", ", out);
- print_expression_prec(binexpr->right, prec);
- fputc(')', out);
- return;
- }
-
print_expression_prec(binexpr->left, prec + r2l);
char const* op;
switch (binexpr->base.kind) {
break;
case EXPR_UNARY_ASSUME:
fputs("__assume(", out);
- print_expression_prec(unexpr->value, PREC_ASSIGNMENT);
+ print_assignment_expression(unexpr->value);
fputc(')', out);
return;
*/
static void print_array_expression(const array_access_expression_t *expression)
{
- unsigned prec = get_expression_precedence(expression->base.kind);
- if(!expression->flipped) {
- print_expression_prec(expression->array_ref, prec);
+ if (!expression->flipped) {
+ print_expression_prec(expression->array_ref, PREC_POSTFIX);
fputc('[', out);
print_expression(expression->index);
fputc(']', out);
} else {
- print_expression_prec(expression->index, prec);
+ print_expression_prec(expression->index, PREC_POSTFIX);
fputc('[', out);
print_expression(expression->array_ref);
fputc(']', out);
assert(expression->base.kind == EXPR_ALIGNOF);
fputs("__alignof__", out);
}
- if(expression->tp_expression != NULL) {
- /* always print the '()' here, sizeof x is right but unusual */
- fputc('(', out);
- print_expression(expression->tp_expression);
- fputc(')', out);
+ if (expression->tp_expression != NULL) {
+ /* PREC_TOP: always print the '()' here, sizeof x is right but unusual */
+ print_expression_prec(expression->tp_expression, PREC_TOP);
} else {
fputc('(', out);
print_type(expression->type);
}
}
-/**
- * Prints an builtin symbol.
- *
- * @param expression the builtin symbol expression
- */
-static void print_builtin_symbol(const builtin_symbol_expression_t *expression)
-{
- fputs(expression->symbol->string, out);
-}
-
/**
* Prints a builtin constant expression.
*
static void print_builtin_constant(const builtin_constant_expression_t *expression)
{
fputs("__builtin_constant_p(", out);
- print_expression_prec(expression->value, PREC_ASSIGNMENT);
+ print_assignment_expression(expression->value);
fputc(')', out);
}
/**
- * Prints a builtin prefetch expression.
+ * Prints a builtin types compatible expression.
*
- * @param expression the builtin prefetch expression
+ * @param expression the builtin types compatible expression
*/
-static void print_builtin_prefetch(const builtin_prefetch_expression_t *expression)
+static void print_builtin_types_compatible(
+ const builtin_types_compatible_expression_t *expression)
{
- fputs("__builtin_prefetch(", out);
- print_expression_prec(expression->adr, PREC_ASSIGNMENT);
- if (expression->rw) {
- fputc(',', out);
- print_expression_prec(expression->rw, PREC_ASSIGNMENT);
- }
- if (expression->locality) {
- fputc(',', out);
- print_expression_prec(expression->locality, PREC_ASSIGNMENT);
- }
+ fputs("__builtin_types_compatible_p(", out);
+ print_type(expression->left);
+ fputs(", ", out);
+ print_type(expression->right);
fputc(')', out);
}
static void print_conditional(const conditional_expression_t *expression)
{
print_expression_prec(expression->condition, PREC_LOGICAL_OR);
- fputs(" ? ", out);
if (expression->true_expression != NULL) {
+ fputs(" ? ", out);
print_expression_prec(expression->true_expression, PREC_EXPRESSION);
fputs(" : ", out);
} else {
- fputs(": ", out);
+ fputs(" ?: ", out);
}
precedence_t prec = c_mode & _CXX ? PREC_ASSIGNMENT : PREC_CONDITIONAL;
print_expression_prec(expression->false_expression, prec);
static void print_va_start(const va_start_expression_t *const expression)
{
fputs("__builtin_va_start(", out);
- print_expression_prec(expression->ap, PREC_ASSIGNMENT);
+ print_assignment_expression(expression->ap);
fputs(", ", out);
fputs(expression->parameter->base.base.symbol->string, out);
fputc(')', out);
static void print_va_arg(const va_arg_expression_t *expression)
{
fputs("__builtin_va_arg(", out);
- print_expression_prec(expression->ap, PREC_ASSIGNMENT);
+ print_assignment_expression(expression->ap);
fputs(", ", out);
print_type(expression->base.type);
fputc(')', out);
}
+/**
+ * Prints a va_copy expression.
+ *
+ * @param expression the va_copy expression
+ */
+static void print_va_copy(const va_copy_expression_t *expression)
+{
+ fputs("__builtin_va_copy(", out);
+ print_assignment_expression(expression->dst);
+ fputs(", ", out);
+ print_assignment_expression(expression->src);
+ fputc(')', out);
+}
+
/**
* Prints a select expression (. or ->).
*
*/
static void print_select(const select_expression_t *expression)
{
- unsigned prec = get_expression_precedence(expression->base.kind);
- print_expression_prec(expression->compound, prec);
- if(is_type_pointer(skip_typeref(expression->compound->base.type))) {
+ print_expression_prec(expression->compound, PREC_POSTFIX);
+ if (is_type_pointer(skip_typeref(expression->compound->base.type))) {
fputs("->", out);
} else {
fputc('.', out);
const classify_type_expression_t *const expr)
{
fputs("__builtin_classify_type(", out);
- print_expression_prec(expr->type_expression, PREC_ASSIGNMENT);
+ print_assignment_expression(expr->type_expression);
fputc(')', out);
}
*/
static void print_offsetof_expression(const offsetof_expression_t *expression)
{
- fputs("__builtin_offsetof", out);
- fputc('(', out);
+ fputs("__builtin_offsetof(", out);
print_type(expression->type);
fputc(',', out);
print_designator(expression->designator);
if (expression->kind == EXPR_UNARY_CAST_IMPLICIT && !print_implicit_casts) {
expression = expression->unary.value;
}
- unsigned prec = get_expression_precedence(expression->base.kind);
- if (print_parenthesis && top_prec != PREC_BOTTOM)
- top_prec = PREC_TOP;
- if (top_prec > prec)
+
+ bool parenthesized =
+ expression->base.parenthesized ||
+ (print_parenthesis && top_prec != PREC_BOTTOM) ||
+ top_prec > get_expression_precedence(expression->base.kind);
+
+ if (parenthesized)
fputc('(', out);
switch (expression->kind) {
case EXPR_UNKNOWN:
case EXPR_ALIGNOF:
print_typeprop_expression(&expression->typeprop);
break;
- case EXPR_BUILTIN_SYMBOL:
- print_builtin_symbol(&expression->builtin_symbol);
- break;
case EXPR_BUILTIN_CONSTANT_P:
print_builtin_constant(&expression->builtin_constant);
break;
- case EXPR_BUILTIN_PREFETCH:
- print_builtin_prefetch(&expression->builtin_prefetch);
+ case EXPR_BUILTIN_TYPES_COMPATIBLE_P:
+ print_builtin_types_compatible(&expression->builtin_types_compatible);
break;
case EXPR_CONDITIONAL:
print_conditional(&expression->conditional);
case EXPR_VA_ARG:
print_va_arg(&expression->va_arge);
break;
+ case EXPR_VA_COPY:
+ print_va_copy(&expression->va_copye);
+ break;
case EXPR_SELECT:
print_select(&expression->select);
break;
default:
/* TODO */
- fprintf(out, "some expression of type %d", (int) expression->kind);
+ fprintf(out, "some expression of type %d", (int)expression->kind);
break;
}
- if (top_prec > prec)
+ if (parenthesized)
fputc(')', out);
}
}
--indent;
print_indent();
- fputs("}\n", out);
+ fputs(block->stmt_expr ? "}" : "}\n", out);
}
/**
*/
static void print_return_statement(const return_statement_t *statement)
{
- fputs("return ", out);
- if(statement->value != NULL)
- print_expression(statement->value);
- fputs(";\n", out);
+ expression_t const *const val = statement->value;
+ if (val != NULL) {
+ fputs("return ", out);
+ print_expression(val);
+ fputs(";\n", out);
+ } else {
+ fputs("return;\n", out);
+ }
}
/**
fputs(") ", out);
print_statement(statement->true_statement);
- if(statement->false_statement != NULL) {
+ if (statement->false_statement != NULL) {
print_indent();
fputs("else ", out);
print_statement(statement->false_statement);
*/
static void print_case_label(const case_label_statement_t *statement)
{
- if(statement->expression == NULL) {
+ if (statement->expression == NULL) {
fputs("default:\n", out);
} else {
fputs("case ", out);
fputs(":\n", out);
}
++indent;
- if(statement->statement != NULL) {
+ if (statement->statement != NULL) {
if (statement->statement->base.kind == STATEMENT_CASE_LABEL) {
--indent;
}
}
}
-static void print_local_label(const local_label_statement_t *statement)
-{
- fputs("__label__ ", out);
-
- bool first = true;
- entity_t *entity = statement->labels_begin;
- for (;
- entity != statement->labels_end->base.next;
- entity = entity->base.next) {
- if (!first) {
- fputs(", ", out);
- } else {
- first = false;
- }
- fputs(entity->base.symbol->string, out);
- }
- fputs(";\n", out);
-}
-
static void print_typedef(const entity_t *entity)
{
fputs("typedef ", out);
print_type_ext(entity->typedefe.type, entity->base.symbol, NULL);
- fputs(";", out);
+ fputc(';', out);
}
/**
{
bool first = true;
entity_t *entity = statement->declarations_begin;
- for (;
- entity != statement->declarations_end->base.next;
- entity = entity->base.next) {
- if (!is_declaration(entity) && entity->kind != ENTITY_TYPEDEF)
+ if (entity == NULL) {
+ fputs("/* empty declaration statement */\n", out);
+ return;
+ }
+
+ entity_t *const end = statement->declarations_end->base.next;
+ for (; entity != end; entity = entity->base.next) {
+ if (entity->kind == ENTITY_ENUM_VALUE)
continue;
if (is_generated_entity(entity))
continue;
first = false;
}
- if (entity->kind == ENTITY_TYPEDEF) {
- print_typedef(entity);
- } else {
- assert(is_declaration(entity));
- print_declaration(entity);
- }
-
+ print_entity(entity);
fputc('\n', out);
}
}
static void print_for_statement(const for_statement_t *statement)
{
fputs("for (", out);
- entity_t *entity = statement->scope.entities;
- while (entity != NULL && is_generated_entity(entity))
- entity = entity->base.next;
-
- if (entity != NULL) {
- assert(statement->initialisation == NULL);
- assert(is_declaration(entity));
- print_declaration(entity);
- if (entity->base.next != NULL) {
- panic("multiple declarations in for statement not supported yet");
- }
- fputc(' ', out);
+ if (statement->initialisation != NULL) {
+ print_expression(statement->initialisation);
+ fputc(';', out);
} else {
- if(statement->initialisation) {
- print_expression(statement->initialisation);
+ entity_t const *entity = statement->scope.entities;
+ for (; entity != NULL; entity = entity->base.next) {
+ if (is_generated_entity(entity))
+ continue;
+ /* FIXME display of multiple declarations is wrong */
+ print_declaration(entity);
}
- fputs("; ", out);
}
- if(statement->condition != NULL) {
+ if (statement->condition != NULL) {
+ fputc(' ', out);
print_expression(statement->condition);
}
- fputs("; ", out);
- if(statement->step != NULL) {
+ fputc(';', out);
+ if (statement->step != NULL) {
+ fputc(' ', out);
print_expression(statement->step);
}
fputs(") ", out);
static void print_asm_arguments(asm_argument_t *arguments)
{
asm_argument_t *argument = arguments;
- for( ; argument != NULL; argument = argument->next) {
- if(argument != arguments)
+ for (; argument != NULL; argument = argument->next) {
+ if (argument != arguments)
fputs(", ", out);
- if(argument->symbol) {
+ if (argument->symbol) {
fprintf(out, "[%s] ", argument->symbol->string);
}
print_quoted_string(&argument->constraints, '"', 1);
static void print_asm_clobbers(asm_clobber_t *clobbers)
{
asm_clobber_t *clobber = clobbers;
- for( ; clobber != NULL; clobber = clobber->next) {
- if(clobber != clobbers)
+ for (; clobber != NULL; clobber = clobber->next) {
+ if (clobber != clobbers)
fputs(", ", out);
print_quoted_string(&clobber->clobber, '"', 1);
static void print_asm_statement(const asm_statement_t *statement)
{
fputs("asm ", out);
- if(statement->is_volatile) {
+ if (statement->is_volatile) {
fputs("volatile ", out);
}
fputc('(', out);
fputs("__try ", out);
print_statement(statement->try_statement);
print_indent();
- if(statement->except_expression != NULL) {
+ if (statement->except_expression != NULL) {
fputs("__except(", out);
print_expression(statement->except_expression);
fputs(") ", out);
*/
static void print_leave_statement(const leave_statement_t *statement)
{
- (void) statement;
+ (void)statement;
fputs("__leave;\n", out);
}
case STATEMENT_LABEL:
print_label_statement(&statement->label);
break;
- case STATEMENT_LOCAL_LABEL:
- print_local_label(&statement->local_label);
- break;
case STATEMENT_GOTO:
print_goto_statement(&statement->gotos);
break;
*/
static void print_storage_class(storage_class_tag_t storage_class)
{
- const char *text;
switch (storage_class) {
case STORAGE_CLASS_NONE: return;
- case STORAGE_CLASS_TYPEDEF: text = "typedef "; break;
- case STORAGE_CLASS_EXTERN: text = "extern "; break;
- case STORAGE_CLASS_STATIC: text = "static "; break;
- case STORAGE_CLASS_AUTO: text = "auto "; break;
- case STORAGE_CLASS_REGISTER: text = "register "; break;
+ case STORAGE_CLASS_TYPEDEF: fputs("typedef ", out); return;
+ case STORAGE_CLASS_EXTERN: fputs("extern ", out); return;
+ case STORAGE_CLASS_STATIC: fputs("static ", out); return;
+ case STORAGE_CLASS_AUTO: fputs("auto ", out); return;
+ case STORAGE_CLASS_REGISTER: fputs("register ", out); return;
}
- fputs(text, out);
+ panic("invalid storage class");
}
/**
*/
void print_initializer(const initializer_t *initializer)
{
- if(initializer == NULL) {
+ if (initializer == NULL) {
fputs("{}", out);
return;
}
switch (initializer->kind) {
case INITIALIZER_VALUE: {
const initializer_value_t *value = &initializer->value;
- print_expression(value->value);
+ print_assignment_expression(value->value);
return;
}
case INITIALIZER_LIST: {
fputs("{ ", out);
const initializer_list_t *list = &initializer->list;
- for(size_t i = 0 ; i < list->len; ++i) {
+ for (size_t i = 0 ; i < list->len; ++i) {
const initializer_t *sub_init = list->initializers[i];
print_initializer(list->initializers[i]);
- if(i < list->len-1) {
- if(sub_init == NULL || sub_init->kind != INITIALIZER_DESIGNATOR)
+ if (i < list->len-1) {
+ if (sub_init == NULL || sub_init->kind != INITIALIZER_DESIGNATOR)
fputs(", ", out);
}
}
panic("invalid initializer kind found");
}
+#if 0
/**
* Print microsoft extended declaration modifiers.
*/
static void print_ms_modifiers(const declaration_t *declaration)
{
- if((c_mode & _MS) == 0)
+ if ((c_mode & _MS) == 0)
return;
decl_modifiers_t modifiers = declaration->modifiers;
const char *next = "(";
if (declaration->base.kind == ENTITY_VARIABLE) {
- variable_t *variable = (variable_t*) declaration;
+ variable_t *variable = (variable_t*)declaration;
if (variable->alignment != 0
|| variable->get_property_sym != NULL
|| variable->put_property_sym != NULL) {
ds_shown = true;
}
- if(variable->alignment != 0) {
+ if (variable->alignment != 0) {
fputs(next, out); next = ", "; fprintf(out, "align(%u)", variable->alignment);
}
- if(variable->get_property_sym != NULL
+ if (variable->get_property_sym != NULL
|| variable->put_property_sym != NULL) {
char *comma = "";
fputs(next, out); next = ", "; fputs("property(", out);
- if(variable->get_property_sym != NULL) {
+ if (variable->get_property_sym != NULL) {
fprintf(out, "get=%s", variable->get_property_sym->string);
comma = ", ";
}
- if(variable->put_property_sym != NULL)
+ if (variable->put_property_sym != NULL)
fprintf(out, "%sput=%s", comma, variable->put_property_sym->string);
fputc(')', out);
}
fputs("__declspec", out);
ds_shown = true;
}
- if(modifiers & DM_DLLIMPORT) {
+ if (modifiers & DM_DLLIMPORT) {
fputs(next, out); next = ", "; fputs("dllimport", out);
}
- if(modifiers & DM_DLLEXPORT) {
+ if (modifiers & DM_DLLEXPORT) {
fputs(next, out); next = ", "; fputs("dllexport", out);
}
- if(modifiers & DM_THREAD) {
+ if (modifiers & DM_THREAD) {
fputs(next, out); next = ", "; fputs("thread", out);
}
- if(modifiers & DM_NAKED) {
+ if (modifiers & DM_NAKED) {
fputs(next, out); next = ", "; fputs("naked", out);
}
- if(modifiers & DM_THREAD) {
+ if (modifiers & DM_THREAD) {
fputs(next, out); next = ", "; fputs("thread", out);
}
- if(modifiers & DM_SELECTANY) {
+ if (modifiers & DM_SELECTANY) {
fputs(next, out); next = ", "; fputs("selectany", out);
}
- if(modifiers & DM_NOTHROW) {
+ if (modifiers & DM_NOTHROW) {
fputs(next, out); next = ", "; fputs("nothrow", out);
}
- if(modifiers & DM_NORETURN) {
+ if (modifiers & DM_NORETURN) {
fputs(next, out); next = ", "; fputs("noreturn", out);
}
- if(modifiers & DM_NOINLINE) {
+ if (modifiers & DM_NOINLINE) {
fputs(next, out); next = ", "; fputs("noinline", out);
}
if (modifiers & DM_DEPRECATED) {
fputs(next, out); next = ", "; fputs("deprecated", out);
- if(declaration->deprecated_string != NULL)
+ if (declaration->deprecated_string != NULL)
fprintf(out, "(\"%s\")",
declaration->deprecated_string);
}
- if(modifiers & DM_RESTRICT) {
+ if (modifiers & DM_RESTRICT) {
fputs(next, out); next = ", "; fputs("restrict", out);
}
- if(modifiers & DM_NOALIAS) {
+ if (modifiers & DM_NOALIAS) {
fputs(next, out); next = ", "; fputs("noalias", out);
}
}
if (ds_shown)
fputs(") ", out);
}
+#endif
static void print_scope(const scope_t *scope)
{
assert(is_declaration(entity));
const declaration_t *declaration = &entity->declaration;
- print_storage_class((storage_class_tag_t) declaration->declared_storage_class);
+ print_storage_class((storage_class_tag_t)declaration->declared_storage_class);
if (entity->kind == ENTITY_FUNCTION) {
- function_t *function = (function_t*) declaration;
+ function_t *function = (function_t*)declaration;
if (function->is_inline) {
if (declaration->modifiers & DM_FORCEINLINE) {
fputs("__forceinline ", out);
}
}
}
- print_ms_modifiers(declaration);
+ //print_ms_modifiers(declaration);
switch (entity->kind) {
case ENTITY_FUNCTION:
print_type_ext(entity->declaration.type, entity->base.symbol,
if (entity->base.namespc != NAMESPACE_NORMAL && entity->base.symbol == NULL)
return;
- switch ((entity_kind_tag_t) entity->kind) {
+ switch ((entity_kind_tag_t)entity->kind) {
case ENTITY_VARIABLE:
+ case ENTITY_PARAMETER:
case ENTITY_COMPOUND_MEMBER:
- print_declaration(entity);
- return;
case ENTITY_FUNCTION:
print_declaration(entity);
return;
case ENTITY_NAMESPACE:
print_namespace(&entity->namespacee);
return;
+ case ENTITY_LOCAL_LABEL:
+ fprintf(out, "__label__ %s;", entity->base.symbol->string);
+ return;
case ENTITY_LABEL:
case ENTITY_ENUM_VALUE:
- case ENTITY_LOCAL_LABEL:
panic("print_entity used on unexpected entity type");
case ENTITY_INVALID:
break;
return is_constant_expression(initializer->value.value);
case INITIALIZER_LIST:
- for(size_t i = 0; i < initializer->list.len; ++i) {
+ for (size_t i = 0; i < initializer->list.len; ++i) {
initializer_t *sub_initializer = initializer->list.initializers[i];
- if(!is_constant_initializer(sub_initializer))
+ if (!is_constant_initializer(sub_initializer))
return false;
}
return true;
case EXPR_SELECT: {
type_t *base_type = skip_typeref(expression->select.compound->base.type);
- if(is_type_pointer(base_type)) {
+ if (is_type_pointer(base_type)) {
/* it's a -> */
return is_address_constant(expression->select.compound);
} else {
case EXPR_REFERENCE: {
entity_t *entity = expression->reference.entity;
if (is_declaration(entity)) {
- switch ((storage_class_tag_t) entity->declaration.storage_class) {
+ switch ((storage_class_tag_t)entity->declaration.storage_class) {
case STORAGE_CLASS_NONE:
case STORAGE_CLASS_EXTERN:
case STORAGE_CLASS_STATIC:
bool is_address_constant(const expression_t *expression)
{
switch (expression->kind) {
+ case EXPR_STRING_LITERAL:
+ case EXPR_WIDE_STRING_LITERAL:
+ case EXPR_FUNCNAME:
+ case EXPR_LABEL_ADDRESS:
+ return true;
+
case EXPR_UNARY_TAKE_ADDRESS:
return is_object_with_linker_constant_address(expression->unary.value);
type_t *real_type
= revert_automatic_type_conversion(expression->unary.value);
/* dereferencing a function is a NOP */
- if(is_type_function(real_type)) {
+ if (is_type_function(real_type)) {
return is_address_constant(expression->unary.value);
}
-
- /* fallthrough */
+ /* FALLTHROUGH */
}
case EXPR_UNARY_CAST: {
if (!is_type_pointer(dest) && (
dest->kind != TYPE_ATOMIC ||
!(get_atomic_type_flags(dest->atomic.akind) & ATOMIC_TYPE_FLAG_INTEGER) ||
- (get_atomic_type_size(dest->atomic.akind) < get_atomic_type_size(get_intptr_kind())
- )))
+ get_atomic_type_size(dest->atomic.akind) < get_atomic_type_size(get_intptr_kind())
+ ))
return false;
return (is_constant_expression(expression->unary.value)
expression_t *left = expression->binary.left;
expression_t *right = expression->binary.right;
- if(is_type_pointer(skip_typeref(left->base.type))) {
+ if (is_type_pointer(skip_typeref(left->base.type))) {
return is_address_constant(left) && is_constant_expression(right);
- } else if(is_type_pointer(skip_typeref(right->base.type))) {
+ } else if (is_type_pointer(skip_typeref(right->base.type))) {
return is_constant_expression(left) && is_address_constant(right);
}
return false;
type_t *type = skip_typeref(entity->declaration.type);
- if(is_type_function(type))
+ if (is_type_function(type))
return true;
- if(is_type_array(type)) {
+ if (is_type_array(type)) {
return is_object_with_linker_constant_address(expression);
}
/* Prevent stray errors */
}
}
+/**
+ * Check if the given expression is a call to a builtin function
+ * returning a constant result.
+ */
static bool is_builtin_const_call(const expression_t *expression)
{
expression_t *function = expression->call.function;
- if (function->kind != EXPR_BUILTIN_SYMBOL) {
+ if (function->kind != EXPR_REFERENCE)
+ return false;
+ reference_expression_t *ref = &function->reference;
+ if (ref->entity->kind != ENTITY_FUNCTION)
return false;
- }
-
- symbol_t *symbol = function->builtin_symbol.symbol;
- switch (symbol->ID) {
- case T___builtin_huge_val:
- case T___builtin_inf:
- case T___builtin_inff:
- case T___builtin_infl:
- case T___builtin_nan:
- case T___builtin_nanf:
- case T___builtin_nanl:
+ switch (ref->entity->function.btk) {
+ case bk_gnu_builtin_huge_val:
+ case bk_gnu_builtin_inf:
+ case bk_gnu_builtin_inff:
+ case bk_gnu_builtin_infl:
+ case bk_gnu_builtin_nan:
+ case bk_gnu_builtin_nanf:
+ case bk_gnu_builtin_nanl:
return true;
+ default:
+ return false;
}
- return false;
}
static bool is_constant_pointer(const expression_t *expression)
expression_t *compound = expression->select.compound;
type_t *compound_type = compound->base.type;
compound_type = skip_typeref(compound_type);
- if(is_type_pointer(compound_type)) {
+ if (is_type_pointer(compound_type)) {
return is_constant_pointer(compound);
} else {
return is_object_with_constant_address(compound);
case EXPR_CONST:
case EXPR_CHARACTER_CONSTANT:
case EXPR_WIDE_CHARACTER_CONSTANT:
- case EXPR_STRING_LITERAL:
- case EXPR_WIDE_STRING_LITERAL:
case EXPR_CLASSIFY_TYPE:
- case EXPR_FUNCNAME:
case EXPR_OFFSETOF:
case EXPR_ALIGNOF:
case EXPR_BUILTIN_CONSTANT_P:
- case EXPR_LABEL_ADDRESS:
+ case EXPR_BUILTIN_TYPES_COMPATIBLE_P:
case EXPR_REFERENCE_ENUM_VALUE:
return true;
return true;
}
- case EXPR_BUILTIN_SYMBOL:
- case EXPR_BUILTIN_PREFETCH:
+ case EXPR_STRING_LITERAL:
+ case EXPR_WIDE_STRING_LITERAL:
+ case EXPR_FUNCNAME:
+ case EXPR_LABEL_ADDRESS:
case EXPR_SELECT:
case EXPR_VA_START:
case EXPR_VA_ARG:
+ case EXPR_VA_COPY:
case EXPR_STATEMENT:
case EXPR_REFERENCE:
case EXPR_UNARY_POSTFIX_INCREMENT:
case EXPR_BINARY_BITWISE_AND:
case EXPR_BINARY_BITWISE_OR:
case EXPR_BINARY_BITWISE_XOR:
- case EXPR_BINARY_LOGICAL_AND:
- case EXPR_BINARY_LOGICAL_OR:
case EXPR_BINARY_SHIFTLEFT:
case EXPR_BINARY_SHIFTRIGHT:
- case EXPR_BINARY_BUILTIN_EXPECT:
case EXPR_BINARY_ISGREATER:
case EXPR_BINARY_ISGREATEREQUAL:
case EXPR_BINARY_ISLESS:
return is_constant_expression(expression->binary.left)
&& is_constant_expression(expression->binary.right);
+ case EXPR_BINARY_LOGICAL_AND: {
+ expression_t const *const left = expression->binary.left;
+ if (!is_constant_expression(left))
+ return false;
+ if (fold_constant_to_bool(left) == false)
+ return true;
+ return is_constant_expression(expression->binary.right);
+ }
+
+ case EXPR_BINARY_LOGICAL_OR: {
+ expression_t const *const left = expression->binary.left;
+ if (!is_constant_expression(left))
+ return false;
+ if (fold_constant_to_bool(left) == true)
+ return true;
+ return is_constant_expression(expression->binary.right);
+ }
+
case EXPR_COMPOUND_LITERAL:
return is_constant_initializer(expression->compound_literal.initializer);
case EXPR_CONDITIONAL: {
expression_t *condition = expression->conditional.condition;
- if(!is_constant_expression(condition))
+ if (!is_constant_expression(condition))
return false;
- long val = fold_constant(condition);
- if(val != 0)
- return is_constant_expression(expression->conditional.true_expression);
- else
+ if (fold_constant_to_bool(condition) == true) {
+ expression_t const *const t = expression->conditional.true_expression;
+ return t == NULL || is_constant_expression(t);
+ } else {
return is_constant_expression(expression->conditional.false_expression);
+ }
}
case EXPR_INVALID: