target-def.h (TARGET_MUST_PASS_IN_STACK): New.

	* target-def.h (TARGET_MUST_PASS_IN_STACK): New.
	* target.h (struct gcc_target): Add calls.must_pass_in_stack.
	* expr.h (MUST_PASS_IN_STACK): Remove.
	* system.h (MUST_PASS_IN_STACK): Poison.
	* tree.h (must_pass_in_stack_var_size): Declare.
	(must_pass_in_stack_var_size_or_pad): Declare.
	* calls.c (must_pass_in_stack_var_size): New.
	(must_pass_in_stack_var_size_or_pad): Rename from
	default_must_pass_in_stack.
	* config/alpha/alpha.c (unicosmk_must_pass_in_stack): New.
	(TARGET_MUST_PASS_IN_STACK): New.
	* config/alpha/unicosmk.h (MUST_PASS_IN_STACK): Remove.
	* config/fr30/fr30.c (fr30_must_pass_in_stack): New.
	(TARGET_MUST_PASS_IN_STACK): New.
	* config/fr30/fr30.h (MUST_PASS_IN_STACK): Remove.
	* config/frv/frv.c (frv_must_pass_in_stack): New.
	(TARGET_MUST_PASS_IN_STACK): New.
	* config/frv/frv.h (MUST_PASS_IN_STACK): Remove.
	* config/i386/i386-protos.h (ix86_must_pass_in_stack): Remove.
	* config/i386/i386.c (TARGET_MUST_PASS_IN_STACK): New.
	(ix86_must_pass_in_stack): Make static.
	* config/i386/i386.h (MUST_PASS_IN_STACK): Remove.
	* config/ia64/ia64.c (TARGET_MUST_PASS_IN_STACK): New.
	* config/ia64/ia64.h (MUST_PASS_IN_STACK): Remove.
	* config/m32r/m32r.c (TARGET_MUST_PASS_IN_STACK): New.
	* config/m32r/m32r.h (MUST_PASS_IN_STACK): Remove.
	* config/mcore/mcore-protos.h (mcore_must_pass_on_stack): Remove.
	* config/mcore/mcore.c (TARGET_MUST_PASS_IN_STACK): New.
	(mcore_must_pass_on_stack): Remove.
	* config/mcore/mcore.h (MUST_PASS_IN_STACK): Remove.
	* config/mips/mips.c (TARGET_MUST_PASS_IN_STACK): New.
	* config/mips/mips.h (MUST_PASS_IN_STACK): Remove.
	* config/pa/pa.c (TARGET_MUST_PASS_IN_STACK): New.
	* config/pa/pa.h (MUST_PASS_IN_STACK): Remove.
	* config/rs6000/aix.h (MUST_PASS_IN_STACK): Remove.
	* config/rs6000/linux64.h (MUST_PASS_IN_STACK): Remove.
	* config/rs6000/rs6000.c (rs6000_must_pass_in_stack): New.
	(TARGET_MUST_PASS_IN_STACK): New.
	* config/sh/sh.c (TARGET_MUST_PASS_IN_STACK): New.
	* config/sh/sh.h (MUST_PASS_IN_STACK): Remove.
	* config/sparc/sparc.c (TARGET_MUST_PASS_IN_STACK): New.
	* config/sparc/sparc.h (MUST_PASS_IN_STACK): Remove.
	* config/xtensa/xtensa.c (TARGET_MUST_PASS_IN_STACK): New.
	* config/xtensa/xtensa.h (MUST_PASS_IN_STACK): Remove.
	* doc/tm.texi (TARGET_MUST_PASS_IN_STACK): Update from
	MUST_PASS_IN_STACK.

	* calls.c, function.c, config/alpha/alpha.c, config/alpha/alpha.h,
	config/alpha/unicosmk.h, config/alpha/vms.h, config/c4x/c4x.c,
	config/cris/cris.h, config/fr30/fr30.c, config/fr30/fr30.h,
	config/frv/frv.c, config/i386/i386.c, config/iq2000/iq2000.c,
	config/mcore/mcore.c, config/mcore/mcore.h, config/mips/mips.c,
	config/mmix/mmix.c, config/mmix/mmix.h, config/rs6000/rs6000.c,
	config/sh/sh.c, config/sh/sh.h, config/stormy16/stormy16.c,
	config/xtensa/xtensa.c: Use target hook.

From-SVN: r84606

2 files changed, 4 insertions, 10 deletions

diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index dc16c61..4003f16 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -436,6 +436,8 @@ static tree sh_gimplify_va_arg_expr (tree, tree, tree *, tree *);
 #define TARGET_STRICT_ARGUMENT_NAMING sh_strict_argument_naming
 #undef TARGET_PRETEND_OUTGOING_VARARGS_NAMED
 #define TARGET_PRETEND_OUTGOING_VARARGS_NAMED sh_pretend_outgoing_varargs_named
+#undef TARGET_MUST_PASS_IN_STACK
+#define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size
 
 #undef TARGET_BUILD_BUILTIN_VA_LIST
 #define TARGET_BUILD_BUILTIN_VA_LIST sh_build_builtin_va_list
@@ -6316,7 +6318,7 @@ sh_gimplify_va_arg_expr (tree valist, tree type, tree *pre_p,
   HOST_WIDE_INT size, rsize;
   tree tmp, pptr_type_node;
   tree addr, lab_over, result = NULL;
-  int pass_by_ref = MUST_PASS_IN_STACK (TYPE_MODE (type), type);
+  int pass_by_ref = targetm.calls.must_pass_in_stack (TYPE_MODE (type), type);
 
   if (pass_by_ref)
     type = build_pointer_type (type);
diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h
index 360ba4a..a76bda1 100644
--- a/gcc/config/sh/sh.h
+++ b/gcc/config/sh/sh.h
@@ -1725,14 +1725,6 @@ extern enum reg_class reg_class_from_letter[];
    On SHcompact, the call trampoline pops arguments off the stack.  */
 #define CALL_POPS_ARGS(CUM) (TARGET_SHCOMPACT ? (CUM).stack_regs * 8 : 0)
 
-/* Nonzero if we do not know how to pass TYPE solely in registers.
-   Values that come in registers with inconvenient padding are stored
-   to memory at the function start.  */
-
-#define MUST_PASS_IN_STACK(MODE,TYPE)			\
-  ((TYPE) != 0						\
-   && (TREE_CODE (TYPE_SIZE (TYPE)) != INTEGER_CST	\
-       || TREE_ADDRESSABLE (TYPE)))
 /* Some subroutine macros specific to this machine.  */
 
 #define BASE_RETURN_VALUE_REG(MODE) \
@@ -2046,7 +2038,7 @@ struct sh_args {
    registers are passed by reference, so that an SHmedia trampoline
    loads them into the full 64-bits registers.  */
 #define FUNCTION_ARG_PASS_BY_REFERENCE(CUM,MODE,TYPE,NAMED) \
-  (MUST_PASS_IN_STACK ((MODE), (TYPE)) \
+  (targetm.calls.must_pass_in_stack ((MODE), (TYPE)) \
    || SHCOMPACT_BYREF ((CUM), (MODE), (TYPE), (NAMED)))
 
 #define SHCOMPACT_BYREF(CUM, MODE, TYPE, NAMED) \