// llvm_emit_file_scope_asm - Emit the specified string as a file-scope inline
// asm block.
//
void llvm_emit_file_scope_asm(tree string) {
if (TREE_CODE(string) == ADDR_EXPR)
string = TREE_OPERAND(string, 0);
if (TheModule->getModuleInlineAsm().empty())
TheModule->setModuleInlineAsm(TREE_STRING_POINTER(string));
else
TheModule->setModuleInlineAsm(TheModule->getModuleInlineAsm() + "\n" +
TREE_STRING_POINTER(string));
}
static void
get_asm_expr_operands (gimple stmt)
{
size_t i, noutputs;
const char **oconstraints;
const char *constraint;
bool allows_mem, allows_reg, is_inout;
noutputs = gimple_asm_noutputs (stmt);
oconstraints = (const char **) alloca ((noutputs) * sizeof (const char *));
/* Gather all output operands. */
for (i = 0; i < gimple_asm_noutputs (stmt); i++)
{
tree link = gimple_asm_output_op (stmt, i);
constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (link)));
oconstraints[i] = constraint;
parse_output_constraint (&constraint, i, 0, 0, &allows_mem,
&allows_reg, &is_inout);
/* This should have been split in gimplify_asm_expr. */
gcc_assert (!allows_reg || !is_inout);
/* Memory operands are addressable. Note that STMT needs the
address of this operand. */
if (!allows_reg && allows_mem)
mark_address_taken (TREE_VALUE (link));
get_expr_operands (stmt, &TREE_VALUE (link), opf_def | opf_not_non_addressable);
}
/* Gather all input operands. */
for (i = 0; i < gimple_asm_ninputs (stmt); i++)
{
tree link = gimple_asm_input_op (stmt, i);
constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (link)));
parse_input_constraint (&constraint, 0, 0, noutputs, 0, oconstraints,
&allows_mem, &allows_reg);
/* Memory operands are addressable. Note that STMT needs the
address of this operand. */
if (!allows_reg && allows_mem)
mark_address_taken (TREE_VALUE (link));
get_expr_operands (stmt, &TREE_VALUE (link), opf_not_non_addressable);
}
/* Clobber all memory and addressable symbols for asm ("" : : : "memory"); */
if (gimple_asm_clobbers_memory_p (stmt))
add_virtual_operand (stmt, opf_def);
}
int
find_string_constant (CPool *cpool, tree string)
{
string = get_identifier (TREE_STRING_POINTER (string));
return find_class_or_string_constant (cpool, CONSTANT_String, string);
}
static void
test_groups (gimple *stmt)
{
gcall *call = check_for_named_call (stmt, "__emit_warning", 1);
if (!call)
return;
/* We expect an ADDR_EXPR with a STRING_CST inside it for the
initial arg. */
tree t_addr_string = gimple_call_arg (call, 0);
if (TREE_CODE (t_addr_string) != ADDR_EXPR)
{
error_at (call->location, "string literal required for arg 1");
return;
}
tree t_string = TREE_OPERAND (t_addr_string, 0);
if (TREE_CODE (t_string) != STRING_CST)
{
error_at (call->location, "string literal required for arg 1");
return;
}
{
auto_diagnostic_group d;
if (warning_at (call->location, 0, "%s", call,
TREE_STRING_POINTER (t_string)))
{
inform (call->location, "message for note");
inform (call->location, " some more detail");
inform (call->location, " yet more detail");
}
}
inform (call->location, "an unrelated message");
}
/*
* find all asm() stmts that clobber r10 and add a reload of r10
*/
static unsigned int execute_kernexec_reload(void)
{
basic_block bb;
// 1. loop through BBs and GIMPLE statements
FOR_EACH_BB(bb) {
gimple_stmt_iterator gsi;
for (gsi = gsi_start_bb(bb); !gsi_end_p(gsi); gsi_next(&gsi)) {
// gimple match: __asm__ ("" : : : "r10");
gimple asm_stmt;
size_t nclobbers;
// is it an asm ...
asm_stmt = gsi_stmt(gsi);
if (gimple_code(asm_stmt) != GIMPLE_ASM)
continue;
// ... clobbering r10
nclobbers = gimple_asm_nclobbers(asm_stmt);
while (nclobbers--) {
tree op = gimple_asm_clobber_op(asm_stmt, nclobbers);
if (strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "r10"))
continue;
kernexec_reload_fptr_mask(&gsi);
//print_gimple_stmt(stderr, asm_stmt, 0, TDF_LINENO);
break;
}
}
}
return 0;
}
static void
handle_pragma_interface (cpp_reader* /*dfile*/)
{
tree fname = parse_strconst_pragma ("interface", 1);
struct c_fileinfo *finfo;
const char *filename;
if (fname == error_mark_node)
return;
else if (fname == 0)
filename = lbasename (LOCATION_FILE (input_location));
else
filename = TREE_STRING_POINTER (fname);
finfo = get_fileinfo (LOCATION_FILE (input_location));
if (impl_file_chain == 0)
{
/* If this is zero at this point, then we are
auto-implementing. */
if (main_input_filename == 0)
main_input_filename = LOCATION_FILE (input_location);
}
finfo->interface_only = interface_strcmp (filename);
/* If MULTIPLE_SYMBOL_SPACES is set, we cannot assume that we can see
a definition in another file. */
if (!MULTIPLE_SYMBOL_SPACES || !finfo->interface_only)
finfo->interface_unknown = 0;
}
static bool
lm32_in_small_data_p (const_tree exp)
{
/* We want to merge strings, so we never consider them small data. */
if (TREE_CODE (exp) == STRING_CST)
return false;
/* Functions are never in the small data area. Duh. */
if (TREE_CODE (exp) == FUNCTION_DECL)
return false;
if (TREE_CODE (exp) == VAR_DECL && DECL_SECTION_NAME (exp))
{
const char *section = TREE_STRING_POINTER (DECL_SECTION_NAME (exp));
if (strcmp (section, ".sdata") == 0 || strcmp (section, ".sbss") == 0)
return true;
}
else
{
HOST_WIDE_INT size = int_size_in_bytes (TREE_TYPE (exp));
/* If this is an incomplete type with size 0, then we can't put it
in sdata because it might be too big when completed. */
if (size > 0 && size <= g_switch_value)
return true;
}
return false;
}
const char* XIL_DecodeAttribute(tree attr,
const char **text_value, int *int_value)
{
tree purpose = TREE_PURPOSE(attr);
if (!purpose || TREE_CODE(purpose) != IDENTIFIER_NODE) {
TREE_UNEXPECTED(attr);
return NULL;
}
const char *name = IDENTIFIER_POINTER(purpose);
tree value = TREE_VALUE(attr);
if (!value)
return name;
if (TREE_CODE(value) != TREE_LIST) {
TREE_UNEXPECTED(attr);
return name;
}
value = TREE_VALUE(value);
if (TREE_CODE(value) == STRING_CST) {
if (text_value)
*text_value = TREE_STRING_POINTER(value);
}
else if (TREE_CODE(value) == INTEGER_CST) {
if (int_value)
*int_value = TREE_INT_CST_LOW(value);
}
return name;
}
tree
convert (tree type, tree expr)
{
tree e = expr;
enum tree_code code = TREE_CODE (type);
const char *invalid_conv_diag;
if (type == error_mark_node
|| expr == error_mark_node
|| TREE_TYPE (expr) == error_mark_node)
return error_mark_node;
if ((invalid_conv_diag
= targetm.invalid_conversion (TREE_TYPE (expr), type)))
{
error (invalid_conv_diag);
return error_mark_node;
}
if (type == TREE_TYPE (expr))
return expr;
if (TYPE_MAIN_VARIANT (type) == TYPE_MAIN_VARIANT (TREE_TYPE (expr)))
return fold_convert (type, expr);
if (TREE_CODE (TREE_TYPE (expr)) == ERROR_MARK)
return error_mark_node;
if (TREE_CODE (TREE_TYPE (expr)) == VOID_TYPE)
{
error ("void value not ignored as it ought to be");
return error_mark_node;
}
if (code == VOID_TYPE)
return fold_convert (type, e);
// check
if (code == INTEGER_TYPE && TREE_CODE(expr) == STRING_CST) {
char *c = TREE_STRING_POINTER(expr)+1;
return build_int_cst(type, *c);
}
if (code == INTEGER_TYPE || code == ENUMERAL_TYPE)
return fold (convert_to_integer (type, e));
if (code == BOOLEAN_TYPE)
return fold_convert (type, c_objc_common_truthvalue_conversion (expr));
if (code == POINTER_TYPE || code == REFERENCE_TYPE)
return fold (convert_to_pointer (type, e));
if (code == REAL_TYPE)
return fold (convert_to_real (type, e));
if (code == COMPLEX_TYPE)
return fold (convert_to_complex (type, e));
if (code == VECTOR_TYPE)
return fold (convert_to_vector (type, e));
if ((code == RECORD_TYPE || code == UNION_TYPE)
&& lang_hooks.types_compatible_p (type, TREE_TYPE (expr)))
return e;
error ("conversion to non-scalar type requested");
return error_mark_node;
}
void xml_short_constant(tree cst, FILE *out)
{
size_t i;
const char *p;
char buf[100];
REAL_VALUE_TYPE rt;
switch (TREE_CODE(cst))
{
case REAL_CST:
rt = TREE_REAL_CST(cst);
if (REAL_VALUE_ISINF(rt))
fprintf(out, "<float-literal special='%sInfinity' />",
REAL_VALUE_NEGATIVE(rt) ? "-" : "+");
else if (REAL_VALUE_ISNAN(rt))
fprintf(out, "<float-literal special='NaN' />");
else
{
real_to_decimal(buf, &rt, sizeof(buf), 0, 1);
fprintf(out, "<float-literal value='%s' />", buf);
}
break;
case INTEGER_CST:
fprintf(out, "<integer-literal value='%lld' />", double_int_to_ll(TREE_INT_CST(cst)));
break;
case STRING_CST:
fprintf(out, "<string-literal>");
p = TREE_STRING_POINTER(cst);
for (i = 0; i < TREE_STRING_LENGTH(cst); i++)
{
if (p[i] == '\\')
fputc('\\', out), fputc('\\', out);
else if (p[i] == '&')
fputs("&", out);
else if (p[i] == '<')
fputs("<", out);
else if (p[i] == '>')
fputs(">", out);
else if (ISPRINT(p[i]))
fputc(p[i], out);
else
fprintf(out, "\\x%02x", p[i] & 0xFF);
}
fprintf(out, "</string-literal>");
break;
default:
fprintf(stderr, "failing: unhandled cst tree type %s\n",
tree_code_name[TREE_CODE(cst)]);
abort();
}
}
static void
write_string_cst (struct output_block *ob,
struct lto_output_stream *index_stream,
tree string)
{
streamer_write_string_with_length (ob, index_stream,
TREE_STRING_POINTER (string),
TREE_STRING_LENGTH (string),
true);
}
// handler to pick up the attribute indicating the name of the annotation
// whose CFG is being generated. we can't pass this at the command line as
// the name may include characters the gcc argument parser doesn't like.
tree annotation_name_handler(tree *node, tree name, tree args,
int flags, bool *no_add_attrs)
{
gcc_assert(TREE_CODE(args) == TREE_LIST);
tree value = TREE_VALUE(args);
gcc_assert(TREE_CODE(value) == STRING_CST);
annotation_name = TREE_STRING_POINTER(value);
return NULL;
}
/*
* Return a newly constructed STRING_CST
* node whose value is the LEN characters at STR.
* The TREE_TYPE is not initialized.
*/
tree
build_string (int len, char *str)
{
register tree s = make_node (STRING_CST);
TREE_STRING_LENGTH (s) = len;
TREE_STRING_POINTER (s) = obstack_copy0 (saveable_obstack, str, len);
return (s);
} /* end build_string */
void
pp_c_string_literal (c_pretty_printer *pp, tree s)
{
const char *p = TREE_STRING_POINTER (s);
int n = TREE_STRING_LENGTH (s) - 1;
int i;
pp_doublequote (pp);
for (i = 0; i < n; ++i)
pp_c_char (pp, p[i]);
pp_doublequote (pp);
}
static void
get_asm_expr_operands (funct_state local, tree stmt)
{
int noutputs = list_length (ASM_OUTPUTS (stmt));
const char **oconstraints
= (const char **) alloca ((noutputs) * sizeof (const char *));
int i;
tree link;
const char *constraint;
bool allows_mem, allows_reg, is_inout;
for (i=0, link = ASM_OUTPUTS (stmt); link; ++i, link = TREE_CHAIN (link))
{
oconstraints[i] = constraint
= TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (link)));
parse_output_constraint (&constraint, i, 0, 0,
&allows_mem, &allows_reg, &is_inout);
check_lhs_var (local, TREE_VALUE (link));
}
for (link = ASM_INPUTS (stmt); link; link = TREE_CHAIN (link))
{
constraint
= TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (link)));
parse_input_constraint (&constraint, 0, 0, noutputs, 0,
oconstraints, &allows_mem, &allows_reg);
check_rhs_var (local, TREE_VALUE (link));
}
for (link = ASM_CLOBBERS (stmt); link; link = TREE_CHAIN (link))
if (simple_cst_equal(TREE_VALUE (link), memory_identifier_string) == 1)
/* Abandon all hope, ye who enter here. */
local->pure_const_state = IPA_NEITHER;
if (ASM_VOLATILE_P (stmt))
local->pure_const_state = IPA_NEITHER;
}
static bool kernexec_cmodel_check(void)
{
tree section;
if (ix86_cmodel != CM_KERNEL)
return false;
section = lookup_attribute("section", DECL_ATTRIBUTES(current_function_decl));
if (!section || !TREE_VALUE(section))
return true;
section = TREE_VALUE(TREE_VALUE(section));
if (strncmp(TREE_STRING_POINTER(section), ".vsyscall_", 10))
return true;
return false;
}
static const char *get_init_exit_section(const_tree decl)
{
const_tree section;
tree attr_value;
section = lookup_attribute("section", DECL_ATTRIBUTES(decl));
if (!section)
return NULL;
gcc_assert(TREE_VALUE(section));
for (attr_value = TREE_VALUE(section); attr_value; attr_value = TREE_CHAIN(attr_value)) {
const char *str = TREE_STRING_POINTER(TREE_VALUE(attr_value));
if (!strncmp(str, ".init.", 6))
return str;
if (!strncmp(str, ".exit.", 6))
return str;
}
return NULL;
}
static void
handle_pragma_implementation (cpp_reader* /*dfile*/)
{
tree fname = parse_strconst_pragma ("implementation", 1);
const char *filename;
struct impl_files *ifiles = impl_file_chain;
if (fname == error_mark_node)
return;
if (fname == 0)
{
if (main_input_filename)
filename = main_input_filename;
else
filename = LOCATION_FILE (input_location);
filename = lbasename (filename);
}
else
{
filename = TREE_STRING_POINTER (fname);
if (cpp_included_before (parse_in, filename, input_location))
warning (0, "#pragma implementation for %qs appears after "
"file is included", filename);
}
for (; ifiles; ifiles = ifiles->next)
{
if (! filename_cmp (ifiles->filename, filename))
break;
}
if (ifiles == 0)
{
ifiles = XNEW (struct impl_files);
ifiles->filename = xstrdup (filename);
ifiles->next = impl_file_chain;
impl_file_chain = ifiles;
}
void
rest_of_decl_compilation (tree decl,
int top_level,
int at_end)
{
/* We deferred calling assemble_alias so that we could collect
other attributes such as visibility. Emit the alias now. */
{
tree alias;
alias = lookup_attribute ("alias", DECL_ATTRIBUTES (decl));
if (alias)
{
alias = TREE_VALUE (TREE_VALUE (alias));
alias = get_identifier (TREE_STRING_POINTER (alias));
assemble_alias (decl, alias);
}
}
/* Emit tm_* attributes for declarations now */
{
tree tm_attribute;
tm_attribute = lookup_attribute ("tm_wrapper", DECL_ATTRIBUTES (decl));
if (tm_attribute == NULL)
tm_attribute = lookup_attribute ("transaction_wrap", DECL_ATTRIBUTES (decl));
if (tm_attribute) {
tm_attribute = TREE_VALUE (TREE_VALUE (tm_attribute));
tm_attribute = get_identifier (TREE_STRING_POINTER (tm_attribute));
assemble_tm_wrapper (decl, tm_attribute);
}
if (has_tm_pure_attribute(decl)) {
assemble_tm_pure (decl);
}
if (has_tm_callable_attribute(decl)) {
assemble_tm_callable (decl);
}
}
/* Can't defer this, because it needs to happen before any
later function definitions are processed. */
if (DECL_ASSEMBLER_NAME_SET_P (decl) && DECL_REGISTER (decl))
/* LLVM LOCAL begin */
#ifndef ENABLE_LLVM
make_decl_rtl (decl);
#else
make_decl_llvm (decl);
#endif
/* LLVM LOCAL end */
/* Forward declarations for nested functions are not "external",
but we need to treat them as if they were. */
if (TREE_STATIC (decl) || DECL_EXTERNAL (decl)
|| TREE_CODE (decl) == FUNCTION_DECL)
{
timevar_push (TV_VARCONST);
/* Don't output anything when a tentative file-scope definition
is seen. But at end of compilation, do output code for them.
We do output all variables when unit-at-a-time is active and rely on
callgraph code to defer them except for forward declarations
(see gcc.c-torture/compile/920624-1.c) */
if ((at_end
|| !DECL_DEFER_OUTPUT (decl)
|| DECL_INITIAL (decl))
&& !DECL_EXTERNAL (decl))
{
if (TREE_CODE (decl) != FUNCTION_DECL)
cgraph_varpool_finalize_decl (decl);
else
assemble_variable (decl, top_level, at_end, 0);
}
#ifdef ASM_FINISH_DECLARE_OBJECT
if (decl == last_assemble_variable_decl)
{
ASM_FINISH_DECLARE_OBJECT (asm_out_file, decl,
top_level, at_end);
}
#endif
timevar_pop (TV_VARCONST);
}
else if (TREE_CODE (decl) == TYPE_DECL
/* Like in rest_of_type_compilation, avoid confusing the debug
information machinery when there are errors. */
&& !(sorrycount || errorcount))
{
/* LLVM LOCAL begin */
#ifndef ENABLE_LLVM
timevar_push (TV_SYMOUT);
debug_hooks->type_decl (decl, !top_level);
timevar_pop (TV_SYMOUT);
#else
llvm_emit_typedef (decl);
#endif
/* LLVM LOCAL end */
}
/* Let cgraph know about the existence of variables. */
if (TREE_CODE (decl) == VAR_DECL && !DECL_EXTERNAL (decl))
cgraph_varpool_node (decl);
}
/// emit_global_to_llvm - Emit the specified VAR_DECL or aggregate CONST_DECL to
/// LLVM as a global variable. This function implements the end of
/// assemble_variable.
void emit_global_to_llvm(tree decl) {
if (errorcount || sorrycount) return;
// FIXME: Support alignment on globals: DECL_ALIGN.
// FIXME: DECL_PRESERVE_P indicates the var is marked with attribute 'used'.
// Global register variables don't turn into LLVM GlobalVariables.
if (TREE_CODE(decl) == VAR_DECL && DECL_REGISTER(decl))
return;
timevar_push(TV_LLVM_GLOBALS);
// Get or create the global variable now.
GlobalVariable *GV = cast<GlobalVariable>(DECL_LLVM(decl));
// Convert the initializer over.
Constant *Init;
if (DECL_INITIAL(decl) == 0 || DECL_INITIAL(decl) == error_mark_node) {
// This global should be zero initialized. Reconvert the type in case the
// forward def of the global and the real def differ in type (e.g. declared
// as 'int A[]', and defined as 'int A[100]').
Init = Constant::getNullValue(ConvertType(TREE_TYPE(decl)));
} else {
assert((TREE_CONSTANT(DECL_INITIAL(decl)) ||
TREE_CODE(DECL_INITIAL(decl)) == STRING_CST) &&
"Global initializer should be constant!");
// Temporarily set an initializer for the global, so we don't infinitely
// recurse. If we don't do this, we can hit cases where we see "oh a global
// with an initializer hasn't been initialized yet, call emit_global_to_llvm
// on it". When constructing the initializer it might refer to itself.
// this can happen for things like void *G = &G;
//
GV->setInitializer(UndefValue::get(GV->getType()->getElementType()));
Init = TreeConstantToLLVM::Convert(DECL_INITIAL(decl));
}
// If we had a forward definition that has a type that disagrees with our
// initializer, insert a cast now. This sort of thing occurs when we have a
// global union, and the LLVM type followed a union initializer that is
// different from the union element used for the type.
if (GV->getType()->getElementType() != Init->getType()) {
GV->removeFromParent();
GlobalVariable *NGV = new GlobalVariable(Init->getType(), GV->isConstant(),
GlobalValue::ExternalLinkage, 0,
GV->getName(), TheModule);
GV->replaceAllUsesWith(ConstantExpr::getBitCast(NGV, GV->getType()));
delete GV;
SET_DECL_LLVM(decl, NGV);
GV = NGV;
}
// Set the initializer.
GV->setInitializer(Init);
// Set thread local (TLS)
if (TREE_CODE(decl) == VAR_DECL && DECL_THREAD_LOCAL(decl))
GV->setThreadLocal(true);
// Set the linkage.
if (!TREE_PUBLIC(decl)) {
GV->setLinkage(GlobalValue::InternalLinkage);
} else if (DECL_WEAK(decl) || DECL_ONE_ONLY(decl) ||
(DECL_COMMON(decl) && // DECL_COMMON is only meaningful if no init
(!DECL_INITIAL(decl) || DECL_INITIAL(decl) == error_mark_node))) {
// llvm-gcc also includes DECL_VIRTUAL_P here.
GV->setLinkage(GlobalValue::WeakLinkage);
} else if (DECL_COMDAT(decl)) {
GV->setLinkage(GlobalValue::LinkOnceLinkage);
}
#ifdef TARGET_ADJUST_LLVM_LINKAGE
TARGET_ADJUST_LLVM_LINKAGE(GV,decl);
#endif /* TARGET_ADJUST_LLVM_LINKAGE */
// Handle visibility style
if (TREE_PUBLIC(decl)) {
if (DECL_VISIBILITY(decl) == VISIBILITY_HIDDEN)
GV->setVisibility(GlobalValue::HiddenVisibility);
else if (DECL_VISIBILITY(decl) == VISIBILITY_PROTECTED)
GV->setVisibility(GlobalValue::ProtectedVisibility);
}
// Set the section for the global.
if (TREE_CODE(decl) == VAR_DECL || TREE_CODE(decl) == CONST_DECL) {
if (DECL_SECTION_NAME(decl)) {
GV->setSection(TREE_STRING_POINTER(DECL_SECTION_NAME(decl)));
#ifdef LLVM_IMPLICIT_TARGET_GLOBAL_VAR_SECTION
} else if (const char *Section =
LLVM_IMPLICIT_TARGET_GLOBAL_VAR_SECTION(decl)) {
GV->setSection(Section);
#endif
}
// Set the alignment for the global if one of the following condition is met
// 1) DECL_ALIGN_UNIT does not match alignment as per ABI specification
// 2) DECL_ALIGN is set by user.
if (DECL_ALIGN_UNIT(decl)) {
unsigned TargetAlign = getTargetData().getABITypeAlignment(GV->getType()->getElementType());
if (DECL_USER_ALIGN(decl) || TargetAlign != DECL_ALIGN_UNIT(decl))
GV->setAlignment(DECL_ALIGN_UNIT(decl));
}
// Handle used decls
if (DECL_PRESERVE_P (decl)) {
const Type *SBP= PointerType::get(Type::Int8Ty);
AttributeUsedGlobals.push_back(ConstantExpr::getBitCast(GV, SBP));
}
// Add annotate attributes for globals
if (DECL_ATTRIBUTES(decl))
AddAnnotateAttrsToGlobal(GV, decl);
}
if (TheDebugInfo) TheDebugInfo->EmitGlobalVariable(GV, decl);
timevar_pop(TV_LLVM_GLOBALS);
}
static enum cpp_ttype
lex_string (const cpp_token *tok, tree *valp, bool objc_string)
{
tree value;
bool wide = false;
size_t concats = 0;
struct obstack str_ob;
cpp_string istr;
/* Try to avoid the overhead of creating and destroying an obstack
for the common case of just one string. */
cpp_string str = tok->val.str;
cpp_string *strs = &str;
if (tok->type == CPP_WSTRING)
wide = true;
retry:
tok = cpp_get_token (parse_in);
switch (tok->type)
{
case CPP_PADDING:
goto retry;
case CPP_ATSIGN:
if (c_dialect_objc ())
{
objc_string = true;
goto retry;
}
/* FALLTHROUGH */
default:
break;
case CPP_WSTRING:
wide = true;
/* FALLTHROUGH */
case CPP_STRING:
if (!concats)
{
gcc_obstack_init (&str_ob);
obstack_grow (&str_ob, &str, sizeof (cpp_string));
}
concats++;
obstack_grow (&str_ob, &tok->val.str, sizeof (cpp_string));
goto retry;
}
/* We have read one more token than we want. */
_cpp_backup_tokens (parse_in, 1);
if (concats)
strs = XOBFINISH (&str_ob, cpp_string *);
if (concats && !objc_string && !in_system_header)
warning (OPT_Wtraditional,
"traditional C rejects string constant concatenation");
if ((c_lex_string_translate
? cpp_interpret_string : cpp_interpret_string_notranslate)
(parse_in, strs, concats + 1, &istr, wide))
{
value = build_string (istr.len, (char *) istr.text);
free ((void *) istr.text);
if (c_lex_string_translate == -1)
{
int xlated = cpp_interpret_string_notranslate (parse_in, strs,
concats + 1,
&istr, wide);
/* Assume that, if we managed to translate the string above,
then the untranslated parsing will always succeed. */
gcc_assert (xlated);
if (TREE_STRING_LENGTH (value) != (int) istr.len
|| 0 != strncmp (TREE_STRING_POINTER (value), (char *) istr.text,
istr.len))
{
/* Arrange for us to return the untranslated string in
*valp, but to set up the C type of the translated
one. */
*valp = build_string (istr.len, (char *) istr.text);
valp = &TREE_CHAIN (*valp);
}
free ((void *) istr.text);
}
}
else
{
/* Callers cannot generally handle error_mark_node in this context,
so return the empty string instead. cpp_interpret_string has
issued an error. */
if (wide)
value = build_string (TYPE_PRECISION (wchar_type_node)
/ TYPE_PRECISION (char_type_node),
"\0\0\0"); /* widest supported wchar_t
is 32 bits */
else
value = build_string (1, "");
}
TREE_TYPE (value) = wide ? wchar_array_type_node : char_array_type_node;
*valp = fix_string_type (value);
if (concats)
obstack_free (&str_ob, 0);
return objc_string ? CPP_OBJC_STRING : wide ? CPP_WSTRING : CPP_STRING;
}
static void search_local_strs(bool initexit)
{
unsigned int i;
tree var;
FOR_EACH_LOCAL_DECL(cfun, i, var) {
tree str, init_val = DECL_INITIAL(var);
if (init_val == NULL_TREE)
continue;
if (strcmp(DECL_NAME_POINTER(var), "__func__"))
continue;
str = get_string_cst(init_val);
gcc_assert(str);
if (set_init_exit_section(var, initexit) && verbose)
inform(DECL_SOURCE_LOCATION(var), "initified local var: %s: %s", DECL_NAME_POINTER(current_function_decl), TREE_STRING_POINTER(str));
}
void
dump_symtab_base (FILE *f, symtab_node *node)
{
static const char * const visibility_types[] = {
"default", "protected", "hidden", "internal"
};
fprintf (f, "%s/%i (%s)",
node->asm_name (),
node->order,
node->name ());
dump_addr (f, " @", (void *)node);
fprintf (f, "\n Type: %s", symtab_type_names[node->type]);
if (node->definition)
fprintf (f, " definition");
if (node->analyzed)
fprintf (f, " analyzed");
if (node->alias)
fprintf (f, " alias");
if (node->weakref)
fprintf (f, " weakref");
if (node->cpp_implicit_alias)
fprintf (f, " cpp_implicit_alias");
if (node->alias_target)
fprintf (f, " target:%s",
DECL_P (node->alias_target)
? IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME
(node->alias_target))
: IDENTIFIER_POINTER (node->alias_target));
if (node->body_removed)
fprintf (f, "\n Body removed by symtab_remove_unreachable_nodes");
fprintf (f, "\n Visibility:");
if (node->in_other_partition)
fprintf (f, " in_other_partition");
if (node->used_from_other_partition)
fprintf (f, " used_from_other_partition");
if (node->force_output)
fprintf (f, " force_output");
if (node->forced_by_abi)
fprintf (f, " forced_by_abi");
if (node->externally_visible)
fprintf (f, " externally_visible");
if (node->resolution != LDPR_UNKNOWN)
fprintf (f, " %s",
ld_plugin_symbol_resolution_names[(int)node->resolution]);
if (TREE_ASM_WRITTEN (node->decl))
fprintf (f, " asm_written");
if (DECL_EXTERNAL (node->decl))
fprintf (f, " external");
if (TREE_PUBLIC (node->decl))
fprintf (f, " public");
if (DECL_COMMON (node->decl))
fprintf (f, " common");
if (DECL_WEAK (node->decl))
fprintf (f, " weak");
if (DECL_DLLIMPORT_P (node->decl))
fprintf (f, " dll_import");
if (DECL_COMDAT (node->decl))
fprintf (f, " comdat");
if (DECL_COMDAT_GROUP (node->decl))
fprintf (f, " comdat_group:%s",
IDENTIFIER_POINTER (DECL_COMDAT_GROUP (node->decl)));
if (DECL_ONE_ONLY (node->decl))
fprintf (f, " one_only");
if (DECL_SECTION_NAME (node->decl))
fprintf (f, " section_name:%s",
TREE_STRING_POINTER (DECL_SECTION_NAME (node->decl)));
if (DECL_VISIBILITY_SPECIFIED (node->decl))
fprintf (f, " visibility_specified");
if (DECL_VISIBILITY (node->decl))
fprintf (f, " visibility:%s",
visibility_types [DECL_VISIBILITY (node->decl)]);
if (DECL_VIRTUAL_P (node->decl))
fprintf (f, " virtual");
if (DECL_ARTIFICIAL (node->decl))
fprintf (f, " artificial");
if (TREE_CODE (node->decl) == FUNCTION_DECL)
{
if (DECL_STATIC_CONSTRUCTOR (node->decl))
fprintf (f, " constructor");
if (DECL_STATIC_DESTRUCTOR (node->decl))
fprintf (f, " destructor");
}
fprintf (f, "\n");
if (node->same_comdat_group)
fprintf (f, " Same comdat group as: %s/%i\n",
node->same_comdat_group->asm_name (),
node->same_comdat_group->order);
if (node->next_sharing_asm_name)
fprintf (f, " next sharing asm name: %i\n",
node->next_sharing_asm_name->order);
if (node->previous_sharing_asm_name)
fprintf (f, " previous sharing asm name: %i\n",
node->previous_sharing_asm_name->order);
if (node->address_taken)
fprintf (f, " Address is taken.\n");
if (node->aux)
{
fprintf (f, " Aux:");
dump_addr (f, " @", (void *)node->aux);
}
fprintf (f, " References: ");
ipa_dump_references (f, &node->ref_list);
fprintf (f, " Referring: ");
ipa_dump_referring (f, &node->ref_list);
if (node->lto_file_data)
fprintf (f, " Read from file: %s\n",
node->lto_file_data->file_name);
}
void
rest_of_decl_compilation (tree decl,
int top_level,
int at_end)
{
/* We deferred calling assemble_alias so that we could collect
other attributes such as visibility. Emit the alias now. */
{
tree alias;
alias = lookup_attribute ("alias", DECL_ATTRIBUTES (decl));
if (alias)
{
alias = TREE_VALUE (TREE_VALUE (alias));
alias = get_identifier (TREE_STRING_POINTER (alias));
assemble_alias (decl, alias);
#ifdef KEY
// Put aliases into the list of decls emitted by g++ so that we can
// iterate through the list when expanding aliases to WHIRL. An alias
// can be expanded only if its target, which can be another alias, is
// expanded. Bug 4393.
if (flag_spin_file)
gspin_gxx_emits_decl(decl);
#endif
}
}
/* Can't defer this, because it needs to happen before any
later function definitions are processed. */
if (DECL_ASSEMBLER_NAME_SET_P (decl) && DECL_REGISTER (decl))
make_decl_rtl (decl);
/* Forward declarations for nested functions are not "external",
but we need to treat them as if they were. */
if (TREE_STATIC (decl) || DECL_EXTERNAL (decl)
|| TREE_CODE (decl) == FUNCTION_DECL)
{
timevar_push (TV_VARCONST);
/* Don't output anything when a tentative file-scope definition
is seen. But at end of compilation, do output code for them.
We do output all variables when unit-at-a-time is active and rely on
callgraph code to defer them except for forward declarations
(see gcc.c-torture/compile/920624-1.c) */
if ((at_end
|| !DECL_DEFER_OUTPUT (decl)
|| DECL_INITIAL (decl))
&& !DECL_EXTERNAL (decl))
{
if (TREE_CODE (decl) != FUNCTION_DECL)
cgraph_varpool_finalize_decl (decl);
else
assemble_variable (decl, top_level, at_end, 0);
}
#ifdef ASM_FINISH_DECLARE_OBJECT
if (decl == last_assemble_variable_decl)
{
ASM_FINISH_DECLARE_OBJECT (asm_out_file, decl,
top_level, at_end);
}
#endif
timevar_pop (TV_VARCONST);
}
else if (TREE_CODE (decl) == TYPE_DECL
/* Like in rest_of_type_compilation, avoid confusing the debug
information machinery when there are errors. */
&& !(sorrycount || errorcount))
{
timevar_push (TV_SYMOUT);
debug_hooks->type_decl (decl, !top_level);
timevar_pop (TV_SYMOUT);
}
/* Let cgraph know about the existence of variables. */
if (TREE_CODE (decl) == VAR_DECL && !DECL_EXTERNAL (decl))
cgraph_varpool_node (decl);
}
static void
dequeue_and_dump (dump_info_p di)
{
dump_queue_p dq;
splay_tree_node stn;
dump_node_info_p dni;
tree t;
unsigned int index;
enum tree_code code;
enum tree_code_class code_class;
const char* code_name;
/* Get the next node from the queue. */
dq = di->queue;
stn = dq->node;
t = (tree) stn->key;
dni = (dump_node_info_p) stn->value;
index = dni->index;
/* Remove the node from the queue, and put it on the free list. */
di->queue = dq->next;
if (!di->queue)
di->queue_end = 0;
dq->next = di->free_list;
di->free_list = dq;
/* Print the node index. */
dump_index (di, index);
/* And the type of node this is. */
if (dni->binfo_p)
code_name = "binfo";
else
code_name = tree_code_name[(int) TREE_CODE (t)];
fprintf (di->stream, "%-16s ", code_name);
di->column = 25;
/* Figure out what kind of node this is. */
code = TREE_CODE (t);
code_class = TREE_CODE_CLASS (code);
/* Although BINFOs are TREE_VECs, we dump them specially so as to be
more informative. */
if (dni->binfo_p)
{
unsigned ix;
tree base;
VEC(tree,gc) *accesses = BINFO_BASE_ACCESSES (t);
dump_child ("type", BINFO_TYPE (t));
if (BINFO_VIRTUAL_P (t))
dump_string_field (di, "spec", "virt");
dump_int (di, "bases", BINFO_N_BASE_BINFOS (t));
for (ix = 0; BINFO_BASE_ITERATE (t, ix, base); ix++)
{
tree access = (accesses ? VEC_index (tree, accesses, ix)
: access_public_node);
const char *string = NULL;
if (access == access_public_node)
string = "pub";
else if (access == access_protected_node)
string = "prot";
else if (access == access_private_node)
string = "priv";
else
gcc_unreachable ();
dump_string_field (di, "accs", string);
queue_and_dump_index (di, "binf", base, DUMP_BINFO);
}
goto done;
}
/* We can knock off a bunch of expression nodes in exactly the same
way. */
if (IS_EXPR_CODE_CLASS (code_class))
{
/* If we're dumping children, dump them now. */
queue_and_dump_type (di, t);
switch (code_class)
{
case tcc_unary:
dump_child ("op 0", TREE_OPERAND (t, 0));
break;
case tcc_binary:
case tcc_comparison:
dump_child ("op 0", TREE_OPERAND (t, 0));
dump_child ("op 1", TREE_OPERAND (t, 1));
break;
case tcc_expression:
case tcc_reference:
case tcc_statement:
case tcc_vl_exp:
/* These nodes are handled explicitly below. */
break;
default:
gcc_unreachable ();
}
}
else if (DECL_P (t))
{
expanded_location xloc;
/* All declarations have names. */
if (DECL_NAME (t))
dump_child ("name", DECL_NAME (t));
if (DECL_ASSEMBLER_NAME_SET_P (t)
&& DECL_ASSEMBLER_NAME (t) != DECL_NAME (t))
dump_child ("mngl", DECL_ASSEMBLER_NAME (t));
if (DECL_ABSTRACT_ORIGIN (t))
dump_child ("orig", DECL_ABSTRACT_ORIGIN (t));
/* And types. */
queue_and_dump_type (di, t);
dump_child ("scpe", DECL_CONTEXT (t));
/* And a source position. */
xloc = expand_location (DECL_SOURCE_LOCATION (t));
if (xloc.file)
{
const char *filename = lbasename (xloc.file);
dump_maybe_newline (di);
fprintf (di->stream, "srcp: %s:%-6d ", filename,
xloc.line);
di->column += 6 + strlen (filename) + 8;
}
/* And any declaration can be compiler-generated. */
if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_DECL_COMMON)
&& DECL_ARTIFICIAL (t))
dump_string_field (di, "note", "artificial");
if (DECL_CHAIN (t) && !dump_flag (di, TDF_SLIM, NULL))
dump_child ("chain", DECL_CHAIN (t));
}
else if (code_class == tcc_type)
{
/* All types have qualifiers. */
int quals = lang_hooks.tree_dump.type_quals (t);
if (quals != TYPE_UNQUALIFIED)
{
fprintf (di->stream, "qual: %c%c%c ",
(quals & TYPE_QUAL_CONST) ? 'c' : ' ',
(quals & TYPE_QUAL_VOLATILE) ? 'v' : ' ',
(quals & TYPE_QUAL_RESTRICT) ? 'r' : ' ');
di->column += 14;
}
/* All types have associated declarations. */
dump_child ("name", TYPE_NAME (t));
/* All types have a main variant. */
if (TYPE_MAIN_VARIANT (t) != t)
dump_child ("unql", TYPE_MAIN_VARIANT (t));
/* And sizes. */
dump_child ("size", TYPE_SIZE (t));
/* All types have alignments. */
dump_int (di, "algn", TYPE_ALIGN (t));
}
else if (code_class == tcc_constant)
/* All constants can have types. */
queue_and_dump_type (di, t);
/* Give the language-specific code a chance to print something. If
it's completely taken care of things, don't bother printing
anything more ourselves. */
if (lang_hooks.tree_dump.dump_tree (di, t))
goto done;
/* Now handle the various kinds of nodes. */
switch (code)
{
int i;
case IDENTIFIER_NODE:
dump_string_field (di, "strg", IDENTIFIER_POINTER (t));
dump_int (di, "lngt", IDENTIFIER_LENGTH (t));
break;
case TREE_LIST:
dump_child ("purp", TREE_PURPOSE (t));
dump_child ("valu", TREE_VALUE (t));
dump_child ("chan", TREE_CHAIN (t));
break;
case STATEMENT_LIST:
{
tree_stmt_iterator it;
for (i = 0, it = tsi_start (t); !tsi_end_p (it); tsi_next (&it), i++)
{
char buffer[32];
sprintf (buffer, "%u", i);
dump_child (buffer, tsi_stmt (it));
}
}
break;
case TREE_VEC:
dump_int (di, "lngt", TREE_VEC_LENGTH (t));
for (i = 0; i < TREE_VEC_LENGTH (t); ++i)
{
char buffer[32];
sprintf (buffer, "%u", i);
dump_child (buffer, TREE_VEC_ELT (t, i));
}
break;
case INTEGER_TYPE:
case ENUMERAL_TYPE:
dump_int (di, "prec", TYPE_PRECISION (t));
dump_string_field (di, "sign", TYPE_UNSIGNED (t) ? "unsigned": "signed");
dump_child ("min", TYPE_MIN_VALUE (t));
dump_child ("max", TYPE_MAX_VALUE (t));
if (code == ENUMERAL_TYPE)
dump_child ("csts", TYPE_VALUES (t));
break;
case REAL_TYPE:
dump_int (di, "prec", TYPE_PRECISION (t));
break;
case FIXED_POINT_TYPE:
dump_int (di, "prec", TYPE_PRECISION (t));
dump_string_field (di, "sign", TYPE_UNSIGNED (t) ? "unsigned": "signed");
dump_string_field (di, "saturating",
TYPE_SATURATING (t) ? "saturating": "non-saturating");
break;
case POINTER_TYPE:
dump_child ("ptd", TREE_TYPE (t));
break;
case REFERENCE_TYPE:
dump_child ("refd", TREE_TYPE (t));
break;
case METHOD_TYPE:
dump_child ("clas", TYPE_METHOD_BASETYPE (t));
/* Fall through. */
case FUNCTION_TYPE:
dump_child ("retn", TREE_TYPE (t));
dump_child ("prms", TYPE_ARG_TYPES (t));
break;
case ARRAY_TYPE:
dump_child ("elts", TREE_TYPE (t));
dump_child ("domn", TYPE_DOMAIN (t));
break;
case RECORD_TYPE:
case UNION_TYPE:
if (TREE_CODE (t) == RECORD_TYPE)
dump_string_field (di, "tag", "struct");
else
dump_string_field (di, "tag", "union");
dump_child ("flds", TYPE_FIELDS (t));
dump_child ("fncs", TYPE_METHODS (t));
queue_and_dump_index (di, "binf", TYPE_BINFO (t),
DUMP_BINFO);
break;
case CONST_DECL:
dump_child ("cnst", DECL_INITIAL (t));
break;
case DEBUG_EXPR_DECL:
dump_int (di, "-uid", DEBUG_TEMP_UID (t));
/* Fall through. */
case VAR_DECL:
case PARM_DECL:
case FIELD_DECL:
case RESULT_DECL:
if (TREE_CODE (t) == PARM_DECL)
dump_child ("argt", DECL_ARG_TYPE (t));
else
dump_child ("init", DECL_INITIAL (t));
dump_child ("size", DECL_SIZE (t));
dump_int (di, "algn", DECL_ALIGN (t));
if (TREE_CODE (t) == FIELD_DECL)
{
if (DECL_FIELD_OFFSET (t))
dump_child ("bpos", bit_position (t));
}
else if (TREE_CODE (t) == VAR_DECL
|| TREE_CODE (t) == PARM_DECL)
{
dump_int (di, "used", TREE_USED (t));
if (DECL_REGISTER (t))
dump_string_field (di, "spec", "register");
}
break;
case FUNCTION_DECL:
dump_child ("args", DECL_ARGUMENTS (t));
if (DECL_EXTERNAL (t))
dump_string_field (di, "body", "undefined");
if (TREE_PUBLIC (t))
dump_string_field (di, "link", "extern");
else
dump_string_field (di, "link", "static");
if (DECL_SAVED_TREE (t) && !dump_flag (di, TDF_SLIM, t))
dump_child ("body", DECL_SAVED_TREE (t));
break;
case INTEGER_CST:
if (TREE_INT_CST_HIGH (t))
dump_int (di, "high", TREE_INT_CST_HIGH (t));
dump_int (di, "low", TREE_INT_CST_LOW (t));
break;
case STRING_CST:
fprintf (di->stream, "strg: %-7s ", TREE_STRING_POINTER (t));
dump_int (di, "lngt", TREE_STRING_LENGTH (t));
break;
case REAL_CST:
dump_real (di, "valu", TREE_REAL_CST_PTR (t));
break;
case FIXED_CST:
dump_fixed (di, "valu", TREE_FIXED_CST_PTR (t));
break;
case TRUTH_NOT_EXPR:
case ADDR_EXPR:
case INDIRECT_REF:
case CLEANUP_POINT_EXPR:
case SAVE_EXPR:
case REALPART_EXPR:
case IMAGPART_EXPR:
/* These nodes are unary, but do not have code class `1'. */
dump_child ("op 0", TREE_OPERAND (t, 0));
break;
case TRUTH_ANDIF_EXPR:
case TRUTH_ORIF_EXPR:
case INIT_EXPR:
case MODIFY_EXPR:
case COMPOUND_EXPR:
case PREDECREMENT_EXPR:
case PREINCREMENT_EXPR:
case POSTDECREMENT_EXPR:
case POSTINCREMENT_EXPR:
/* These nodes are binary, but do not have code class `2'. */
dump_child ("op 0", TREE_OPERAND (t, 0));
dump_child ("op 1", TREE_OPERAND (t, 1));
break;
case COMPONENT_REF:
dump_child ("op 0", TREE_OPERAND (t, 0));
dump_child ("op 1", TREE_OPERAND (t, 1));
dump_child ("op 2", TREE_OPERAND (t, 2));
break;
case ARRAY_REF:
case ARRAY_RANGE_REF:
dump_child ("op 0", TREE_OPERAND (t, 0));
dump_child ("op 1", TREE_OPERAND (t, 1));
dump_child ("op 2", TREE_OPERAND (t, 2));
dump_child ("op 3", TREE_OPERAND (t, 3));
break;
case COND_EXPR:
dump_child ("op 0", TREE_OPERAND (t, 0));
dump_child ("op 1", TREE_OPERAND (t, 1));
dump_child ("op 2", TREE_OPERAND (t, 2));
break;
case TRY_FINALLY_EXPR:
dump_child ("op 0", TREE_OPERAND (t, 0));
dump_child ("op 1", TREE_OPERAND (t, 1));
break;
case CALL_EXPR:
{
int i = 0;
tree arg;
call_expr_arg_iterator iter;
dump_child ("fn", CALL_EXPR_FN (t));
FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
{
char buffer[32];
sprintf (buffer, "%u", i);
dump_child (buffer, arg);
i++;
}
}
break;
case CONSTRUCTOR:
{
unsigned HOST_WIDE_INT cnt;
tree index, value;
dump_int (di, "lngt", VEC_length (constructor_elt,
CONSTRUCTOR_ELTS (t)));
FOR_EACH_CONSTRUCTOR_ELT (CONSTRUCTOR_ELTS (t), cnt, index, value)
{
dump_child ("idx", index);
dump_child ("val", value);
}
}
void
gimple_regimplify_operands (gimple stmt, gimple_stmt_iterator *gsi_p)
{
size_t i, num_ops;
tree lhs;
gimple_seq pre = NULL;
gimple post_stmt = NULL;
push_gimplify_context (gimple_in_ssa_p (cfun));
switch (gimple_code (stmt))
{
case GIMPLE_COND:
gimplify_expr (gimple_cond_lhs_ptr (stmt), &pre, NULL,
is_gimple_val, fb_rvalue);
gimplify_expr (gimple_cond_rhs_ptr (stmt), &pre, NULL,
is_gimple_val, fb_rvalue);
break;
case GIMPLE_SWITCH:
gimplify_expr (gimple_switch_index_ptr (stmt), &pre, NULL,
is_gimple_val, fb_rvalue);
break;
case GIMPLE_OMP_ATOMIC_LOAD:
gimplify_expr (gimple_omp_atomic_load_rhs_ptr (stmt), &pre, NULL,
is_gimple_val, fb_rvalue);
break;
case GIMPLE_ASM:
{
size_t i, noutputs = gimple_asm_noutputs (stmt);
const char *constraint, **oconstraints;
bool allows_mem, allows_reg, is_inout;
oconstraints
= (const char **) alloca ((noutputs) * sizeof (const char *));
for (i = 0; i < noutputs; i++)
{
tree op = gimple_asm_output_op (stmt, i);
constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (op)));
oconstraints[i] = constraint;
parse_output_constraint (&constraint, i, 0, 0, &allows_mem,
&allows_reg, &is_inout);
gimplify_expr (&TREE_VALUE (op), &pre, NULL,
is_inout ? is_gimple_min_lval : is_gimple_lvalue,
fb_lvalue | fb_mayfail);
}
for (i = 0; i < gimple_asm_ninputs (stmt); i++)
{
tree op = gimple_asm_input_op (stmt, i);
constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (op)));
parse_input_constraint (&constraint, 0, 0, noutputs, 0,
oconstraints, &allows_mem, &allows_reg);
if (TREE_ADDRESSABLE (TREE_TYPE (TREE_VALUE (op))) && allows_mem)
allows_reg = 0;
if (!allows_reg && allows_mem)
gimplify_expr (&TREE_VALUE (op), &pre, NULL,
is_gimple_lvalue, fb_lvalue | fb_mayfail);
else
gimplify_expr (&TREE_VALUE (op), &pre, NULL,
is_gimple_asm_val, fb_rvalue);
}
}
break;
default:
/* NOTE: We start gimplifying operands from last to first to
make sure that side-effects on the RHS of calls, assignments
and ASMs are executed before the LHS. The ordering is not
important for other statements. */
num_ops = gimple_num_ops (stmt);
for (i = num_ops; i > 0; i--)
{
tree op = gimple_op (stmt, i - 1);
if (op == NULL_TREE)
continue;
if (i == 1 && (is_gimple_call (stmt) || is_gimple_assign (stmt)))
gimplify_expr (&op, &pre, NULL, is_gimple_lvalue, fb_lvalue);
else if (i == 2
&& is_gimple_assign (stmt)
&& num_ops == 2
&& get_gimple_rhs_class (gimple_expr_code (stmt))
== GIMPLE_SINGLE_RHS)
gimplify_expr (&op, &pre, NULL,
rhs_predicate_for (gimple_assign_lhs (stmt)),
fb_rvalue);
else if (i == 2 && is_gimple_call (stmt))
{
if (TREE_CODE (op) == FUNCTION_DECL)
continue;
gimplify_expr (&op, &pre, NULL, is_gimple_call_addr, fb_rvalue);
}
else
gimplify_expr (&op, &pre, NULL, is_gimple_val, fb_rvalue);
gimple_set_op (stmt, i - 1, op);
}
lhs = gimple_get_lhs (stmt);
/* If the LHS changed it in a way that requires a simple RHS,
create temporary. */
if (lhs && !is_gimple_reg (lhs))
{
bool need_temp = false;
if (is_gimple_assign (stmt)
&& num_ops == 2
&& get_gimple_rhs_class (gimple_expr_code (stmt))
== GIMPLE_SINGLE_RHS)
gimplify_expr (gimple_assign_rhs1_ptr (stmt), &pre, NULL,
rhs_predicate_for (gimple_assign_lhs (stmt)),
fb_rvalue);
else if (is_gimple_reg (lhs))
{
if (is_gimple_reg_type (TREE_TYPE (lhs)))
{
if (is_gimple_call (stmt))
{
i = gimple_call_flags (stmt);
if ((i & ECF_LOOPING_CONST_OR_PURE)
|| !(i & (ECF_CONST | ECF_PURE)))
need_temp = true;
}
if (stmt_can_throw_internal (stmt))
need_temp = true;
}
}
else
{
if (is_gimple_reg_type (TREE_TYPE (lhs)))
need_temp = true;
else if (TYPE_MODE (TREE_TYPE (lhs)) != BLKmode)
{
if (is_gimple_call (stmt))
{
tree fndecl = gimple_call_fndecl (stmt);
if (!aggregate_value_p (TREE_TYPE (lhs), fndecl)
&& !(fndecl && DECL_RESULT (fndecl)
&& DECL_BY_REFERENCE (DECL_RESULT (fndecl))))
need_temp = true;
}
else
need_temp = true;
}
}
if (need_temp)
{
tree temp = create_tmp_reg (TREE_TYPE (lhs), NULL);
if (gimple_in_ssa_p (cfun))
temp = make_ssa_name (temp, NULL);
gimple_set_lhs (stmt, temp);
post_stmt = gimple_build_assign (lhs, temp);
}
}
break;
}
if (!gimple_seq_empty_p (pre))
gsi_insert_seq_before (gsi_p, pre, GSI_SAME_STMT);
if (post_stmt)
gsi_insert_after (gsi_p, post_stmt, GSI_NEW_STMT);
pop_gimplify_context (NULL);
}
static tree
walk_gimple_asm (gasm *stmt, walk_tree_fn callback_op,
struct walk_stmt_info *wi)
{
tree ret, op;
unsigned noutputs;
const char **oconstraints;
unsigned i, n;
const char *constraint;
bool allows_mem, allows_reg, is_inout;
noutputs = gimple_asm_noutputs (stmt);
oconstraints = (const char **) alloca ((noutputs) * sizeof (const char *));
if (wi)
wi->is_lhs = true;
for (i = 0; i < noutputs; i++)
{
op = gimple_asm_output_op (stmt, i);
constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (op)));
oconstraints[i] = constraint;
if (wi)
{
if (parse_output_constraint (&constraint, i, 0, 0, &allows_mem,
&allows_reg, &is_inout))
wi->val_only = (allows_reg || !allows_mem);
}
ret = walk_tree (&TREE_VALUE (op), callback_op, wi, NULL);
if (ret)
return ret;
}
n = gimple_asm_ninputs (stmt);
for (i = 0; i < n; i++)
{
op = gimple_asm_input_op (stmt, i);
constraint = TREE_STRING_POINTER (TREE_VALUE (TREE_PURPOSE (op)));
if (wi)
{
if (parse_input_constraint (&constraint, 0, 0, noutputs, 0,
oconstraints, &allows_mem, &allows_reg))
{
wi->val_only = (allows_reg || !allows_mem);
/* Although input "m" is not really a LHS, we need a lvalue. */
wi->is_lhs = !wi->val_only;
}
}
ret = walk_tree (&TREE_VALUE (op), callback_op, wi, NULL);
if (ret)
return ret;
}
if (wi)
{
wi->is_lhs = false;
wi->val_only = true;
}
n = gimple_asm_nlabels (stmt);
for (i = 0; i < n; i++)
{
op = gimple_asm_label_op (stmt, i);
ret = walk_tree (&TREE_VALUE (op), callback_op, wi, NULL);
if (ret)
return ret;
}
return NULL_TREE;
}
gcc_string_constant_get_char_ptr(gcc_string_constant node)
{
return TREE_STRING_POINTER (node.inner);
}
void
dump_symtab_base (FILE *f, symtab_node node)
{
static const char * const visibility_types[] = {
"default", "protected", "hidden", "internal"
};
fprintf (f, "%s/%i (%s)",
symtab_node_asm_name (node),
node->symbol.order,
symtab_node_name (node));
dump_addr (f, " @", (void *)node);
fprintf (f, "\n Type: %s\n", symtab_type_names[node->symbol.type]);
fprintf (f, " Visibility:");
if (node->symbol.in_other_partition)
fprintf (f, " in_other_partition");
if (node->symbol.used_from_other_partition)
fprintf (f, " used_from_other_partition");
if (node->symbol.force_output)
fprintf (f, " force_output");
if (node->symbol.resolution != LDPR_UNKNOWN)
fprintf (f, " %s",
ld_plugin_symbol_resolution_names[(int)node->symbol.resolution]);
if (TREE_ASM_WRITTEN (node->symbol.decl))
fprintf (f, " asm_written");
if (DECL_EXTERNAL (node->symbol.decl))
fprintf (f, " external");
if (TREE_PUBLIC (node->symbol.decl))
fprintf (f, " public");
if (DECL_COMMON (node->symbol.decl))
fprintf (f, " common");
if (DECL_WEAK (node->symbol.decl))
fprintf (f, " weak");
if (DECL_DLLIMPORT_P (node->symbol.decl))
fprintf (f, " dll_import");
if (DECL_COMDAT (node->symbol.decl))
fprintf (f, " comdat");
if (DECL_COMDAT_GROUP (node->symbol.decl))
fprintf (f, " comdat_group:%s",
IDENTIFIER_POINTER (DECL_COMDAT_GROUP (node->symbol.decl)));
if (DECL_ONE_ONLY (node->symbol.decl))
fprintf (f, " one_only");
if (DECL_SECTION_NAME (node->symbol.decl))
fprintf (f, " section_name:%s",
TREE_STRING_POINTER (DECL_SECTION_NAME (node->symbol.decl)));
if (DECL_VISIBILITY_SPECIFIED (node->symbol.decl))
fprintf (f, " visibility_specified");
if (DECL_VISIBILITY (node->symbol.decl))
fprintf (f, " visibility:%s",
visibility_types [DECL_VISIBILITY (node->symbol.decl)]);
if (DECL_VIRTUAL_P (node->symbol.decl))
fprintf (f, " virtual");
if (DECL_ARTIFICIAL (node->symbol.decl))
fprintf (f, " artificial");
if (TREE_CODE (node->symbol.decl) == FUNCTION_DECL)
{
if (DECL_STATIC_CONSTRUCTOR (node->symbol.decl))
fprintf (f, " constructor");
if (DECL_STATIC_DESTRUCTOR (node->symbol.decl))
fprintf (f, " destructor");
}
fprintf (f, "\n");
if (node->symbol.same_comdat_group)
fprintf (f, " Same comdat group as: %s/%i\n",
symtab_node_asm_name (node->symbol.same_comdat_group),
node->symbol.same_comdat_group->symbol.order);
if (node->symbol.next_sharing_asm_name)
fprintf (f, " next sharing asm name: %i\n",
node->symbol.next_sharing_asm_name->symbol.order);
if (node->symbol.previous_sharing_asm_name)
fprintf (f, " previous sharing asm name: %i\n",
node->symbol.previous_sharing_asm_name->symbol.order);
if (node->symbol.address_taken)
fprintf (f, " Address is taken.\n");
if (node->symbol.aux)
{
fprintf (f, " Aux:");
dump_addr (f, " @", (void *)node->symbol.aux);
}
fprintf (f, " References: ");
ipa_dump_references (f, &node->symbol.ref_list);
fprintf (f, " Referring: ");
ipa_dump_referring (f, &node->symbol.ref_list);
}
static gimple
input_gimple_stmt (struct lto_input_block *ib, struct data_in *data_in,
struct function *fn, enum LTO_tags tag)
{
gimple stmt;
enum gimple_code code;
unsigned HOST_WIDE_INT num_ops;
size_t i;
struct bitpack_d bp;
code = lto_tag_to_gimple_code (tag);
/* Read the tuple header. */
bp = streamer_read_bitpack (ib);
num_ops = bp_unpack_var_len_unsigned (&bp);
stmt = gimple_alloc (code, num_ops);
stmt->gsbase.no_warning = bp_unpack_value (&bp, 1);
if (is_gimple_assign (stmt))
stmt->gsbase.nontemporal_move = bp_unpack_value (&bp, 1);
stmt->gsbase.has_volatile_ops = bp_unpack_value (&bp, 1);
stmt->gsbase.subcode = bp_unpack_var_len_unsigned (&bp);
/* Read location information. */
gimple_set_location (stmt, lto_input_location (ib, data_in));
/* Read lexical block reference. */
gimple_set_block (stmt, stream_read_tree (ib, data_in));
/* Read in all the operands. */
switch (code)
{
case GIMPLE_RESX:
gimple_resx_set_region (stmt, streamer_read_hwi (ib));
break;
case GIMPLE_EH_MUST_NOT_THROW:
gimple_eh_must_not_throw_set_fndecl (stmt, stream_read_tree (ib, data_in));
break;
case GIMPLE_EH_DISPATCH:
gimple_eh_dispatch_set_region (stmt, streamer_read_hwi (ib));
break;
case GIMPLE_ASM:
{
/* FIXME lto. Move most of this into a new gimple_asm_set_string(). */
tree str;
stmt->gimple_asm.ni = streamer_read_uhwi (ib);
stmt->gimple_asm.no = streamer_read_uhwi (ib);
stmt->gimple_asm.nc = streamer_read_uhwi (ib);
stmt->gimple_asm.nl = streamer_read_uhwi (ib);
str = streamer_read_string_cst (data_in, ib);
stmt->gimple_asm.string = TREE_STRING_POINTER (str);
}
/* Fallthru */
case GIMPLE_ASSIGN:
case GIMPLE_CALL:
case GIMPLE_RETURN:
case GIMPLE_SWITCH:
case GIMPLE_LABEL:
case GIMPLE_COND:
case GIMPLE_GOTO:
case GIMPLE_DEBUG:
for (i = 0; i < num_ops; i++)
{
tree op = stream_read_tree (ib, data_in);
gimple_set_op (stmt, i, op);
if (!op)
continue;
/* Fixup FIELD_DECLs in COMPONENT_REFs, they are not handled
by decl merging. */
if (TREE_CODE (op) == ADDR_EXPR)
op = TREE_OPERAND (op, 0);
while (handled_component_p (op))
{
if (TREE_CODE (op) == COMPONENT_REF)
{
tree field, type, tem;
tree closest_match = NULL_TREE;
field = TREE_OPERAND (op, 1);
type = DECL_CONTEXT (field);
for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
{
if (TREE_CODE (tem) != FIELD_DECL)
continue;
if (tem == field)
break;
if (DECL_NONADDRESSABLE_P (tem)
== DECL_NONADDRESSABLE_P (field)
&& gimple_compare_field_offset (tem, field))
{
if (types_compatible_p (TREE_TYPE (tem),
TREE_TYPE (field)))
break;
else
closest_match = tem;
}
}
/* In case of type mismatches across units we can fail
to unify some types and thus not find a proper
field-decl here. */
if (tem == NULL_TREE)
{
/* Thus, emit a ODR violation warning. */
if (warning_at (gimple_location (stmt), 0,
"use of type %<%E%> with two mismatching "
"declarations at field %<%E%>",
type, TREE_OPERAND (op, 1)))
{
if (TYPE_FIELDS (type))
inform (DECL_SOURCE_LOCATION (TYPE_FIELDS (type)),
"original type declared here");
inform (DECL_SOURCE_LOCATION (TREE_OPERAND (op, 1)),
"field in mismatching type declared here");
if (TYPE_NAME (TREE_TYPE (field))
&& (TREE_CODE (TYPE_NAME (TREE_TYPE (field)))
== TYPE_DECL))
inform (DECL_SOURCE_LOCATION
(TYPE_NAME (TREE_TYPE (field))),
"type of field declared here");
if (closest_match
&& TYPE_NAME (TREE_TYPE (closest_match))
&& (TREE_CODE (TYPE_NAME
(TREE_TYPE (closest_match))) == TYPE_DECL))
inform (DECL_SOURCE_LOCATION
(TYPE_NAME (TREE_TYPE (closest_match))),
"type of mismatching field declared here");
}
/* And finally fixup the types. */
TREE_OPERAND (op, 0)
= build1 (VIEW_CONVERT_EXPR, type,
TREE_OPERAND (op, 0));
}
else
TREE_OPERAND (op, 1) = tem;
}
op = TREE_OPERAND (op, 0);
}
}
if (is_gimple_call (stmt))
{
if (gimple_call_internal_p (stmt))
gimple_call_set_internal_fn
(stmt, streamer_read_enum (ib, internal_fn, IFN_LAST));
else
gimple_call_set_fntype (stmt, stream_read_tree (ib, data_in));
}
break;
case GIMPLE_NOP:
case GIMPLE_PREDICT:
break;
case GIMPLE_TRANSACTION:
gimple_transaction_set_label (stmt, stream_read_tree (ib, data_in));
break;
default:
internal_error ("bytecode stream: unknown GIMPLE statement tag %s",
lto_tag_name (tag));
}
/* Update the properties of symbols, SSA names and labels associated
with STMT. */
if (code == GIMPLE_ASSIGN || code == GIMPLE_CALL)
{
tree lhs = gimple_get_lhs (stmt);
if (lhs && TREE_CODE (lhs) == SSA_NAME)
SSA_NAME_DEF_STMT (lhs) = stmt;
}
else if (code == GIMPLE_LABEL)
gcc_assert (emit_label_in_global_context_p (gimple_label_label (stmt))
|| DECL_CONTEXT (gimple_label_label (stmt)) == fn->decl);
else if (code == GIMPLE_ASM)
{
unsigned i;
for (i = 0; i < gimple_asm_noutputs (stmt); i++)
{
tree op = TREE_VALUE (gimple_asm_output_op (stmt, i));
if (TREE_CODE (op) == SSA_NAME)
SSA_NAME_DEF_STMT (op) = stmt;
}
}
/* Reset alias information. */
if (code == GIMPLE_CALL)
gimple_call_reset_alias_info (stmt);
/* Mark the statement modified so its operand vectors can be filled in. */
gimple_set_modified (stmt, true);
return stmt;
}