#include "tm.h"
#include "insn-modes.h"
+struct stdarg_info;
+
struct gcc_target
{
/* Functions that output assembler for the target. */
linker to not dead code strip this symbol. */
void (*mark_decl_preserved) (const char *);
+ /* Output a DTP-relative reference to a TLS symbol. */
+ void (*output_dwarf_dtprel) (FILE *file, int size, rtx x);
+
} asm_out;
/* Functions relating to instruction scheduling. */
tree (* builtin_mask_for_load) (void);
} vectorize;
+ /* The initial value of target_flags. */
+ int default_target_flags;
+
+ /* Handle target switch CODE (an OPT_* value). ARG is the argument
+ passed to the switch; it is NULL if no argument was. VALUE is the
+ value of ARG if CODE specifies a UInteger option, otherwise it is
+ 1 if the positive form of the switch was used and 0 if the negative
+ form was. Return true if the switch was valid. */
+ bool (* handle_option) (size_t code, const char *arg, int value);
+
/* Return machine mode for filter value. */
enum machine_mode (* eh_return_filter_mode) (void);
rtx (* expand_builtin) (tree exp, rtx target, rtx subtarget,
enum machine_mode mode, int ignore);
- /* Fold a target-specific builtin. */
- tree (* fold_builtin) (tree exp, bool ignore);
+ /* Select a replacement for a target-specific builtin. This is done
+ *before* regular type checking, and so allows the target to implement
+ a crude form of function overloading. The result is a complete
+ expression that implements the operation. */
+ tree (*resolve_overloaded_builtin) (tree decl, tree params);
+ /* Fold a target-specific builtin. */
+ tree (* fold_builtin) (tree fndecl, tree arglist, bool ignore);
+
/* For a vendor-specific fundamental TYPE, return a pointer to
a statically-allocated string containing the C++ mangling for
TYPE. In all other cases, return NULL. */
void * (* get_pch_validity) (size_t *);
const char * (* pch_valid_p) (const void *, size_t);
+ /* If nonnull, this function checks whether a PCH file with the
+ given set of target flags can be used. It returns NULL if so,
+ otherwise it returns an error message. */
+ const char *(*check_pch_target_flags) (int);
+
/* True if the compiler should give an enum type only as many
bytes as it takes to represent the range of possible values of
that type. */
rtx (* builtin_setjmp_frame_value) (void);
/* This target hook should add STRING_CST trees for any hard regs
- the port wishes to automatically clobber for all asms. */
- tree (* md_asm_clobbers) (tree);
+ the port wishes to automatically clobber for an asm. */
+ tree (* md_asm_clobbers) (tree, tree, tree);
/* This target hook allows the backend to specify a calling convention
in the debug information. This function actually returns an
to let the backend emit the call frame instructions. */
void (* dwarf_handle_frame_unspec) (const char *, rtx, int);
+ /* Perform architecture specific checking of statements gimplified
+ from VA_ARG_EXPR. LHS is left hand side of MODIFY_EXPR, RHS
+ is right hand side. Returns true if the statements doesn't need
+ to be checked for va_list references. */
+ bool (*stdarg_optimize_hook) (struct stdarg_info *ai, tree lhs, tree rhs);
+
+ /* Returns NULL if target supports the insn within a doloop block,
+ otherwise it returns an error message. */
+ const char * (*invalid_within_doloop) (rtx);
+
/* Functions relating to calls - argument passing, returns, etc. */
struct calls {
bool (*promote_function_args) (tree fntype);
itself. Returning true is the behavior required by the Itanium
C++ ABI. */
bool (*key_method_may_be_inline) (void);
- /* Returns true if all class data (virtual tables, type info,
- etc.) should be exported from the current DLL, even when the
- associated class is not exported. */
- bool (*export_class_data) (void);
+ /* DECL is a virtual table, virtual table table, typeinfo object,
+ or other similar implicit class data object that will be
+ emitted with external linkage in this translation unit. No ELF
+ visibility has been explicitly specified. If the target needs
+ to specify a visibility other than that of the containing class,
+ use this hook to set DECL_VISIBILITY and
+ DECL_VISIBILITY_SPECIFIED. */
+ void (*determine_class_data_visibility) (tree decl);
+ /* Returns true (the default) if virtual tables and other
+ similar implicit class data objects are always COMDAT if they
+ have external linkage. If this hook returns false, then
+ class data for classes whose virtual table will be emitted in
+ only one translation unit will not be COMDAT. */
+ bool (*class_data_always_comdat) (void);
+ /* Returns true if __aeabi_atexit should be used to register static
+ destructors. */
+ bool (*use_aeabi_atexit) (void);
} cxx;
/* Leave the boolean fields at the end. */
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