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

1 files changed, 7 insertions, 7 deletions

diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 3bc86f3..28dfe7d 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -3669,9 +3669,9 @@ where some arguments are usually passed in registers, is to cause
 nameless arguments to be passed on the stack instead.  This is done
 by making @code{FUNCTION_ARG} return 0 whenever @var{named} is 0.
 
-@cindex @code{MUST_PASS_IN_STACK}, and @code{FUNCTION_ARG}
+@cindex @code{TARGET_MUST_PASS_IN_STACK}, and @code{FUNCTION_ARG}
 @cindex @code{REG_PARM_STACK_SPACE}, and @code{FUNCTION_ARG}
-You may use the macro @code{MUST_PASS_IN_STACK (@var{mode}, @var{type})}
+You may use the hook @code{targetm.calls.must_pass_in_stack}
 in the definition of this macro to determine if this argument is of a
 type that must be passed in the stack.  If @code{REG_PARM_STACK_SPACE}
 is not defined and @code{FUNCTION_ARG} returns nonzero for such an
@@ -3680,12 +3680,12 @@ defined, the argument will be computed in the stack and then loaded into
 a register.
 @end defmac
 
-@defmac MUST_PASS_IN_STACK (@var{mode}, @var{type})
-Define as a C expression that evaluates to nonzero if we do not know how
-to pass TYPE solely in registers.  The file @file{expr.h} defines a
+@deftypefn {Target Hook} bool TARGET_MUST_PASS_IN_STACK (enum machine_mode @var{mode}, tree @var{type})
+This target hook should return @code{true} if we should not pass @var{type}
+solely in registers.  The file @file{expr.h} defines a
 definition that is usually appropriate, refer to @file{expr.h} for additional
 documentation.
-@end defmac
+@end deftypefn
 
 @defmac FUNCTION_INCOMING_ARG (@var{cum}, @var{mode}, @var{type}, @var{named})
 Define this macro if the target machine has ``register windows'', so
@@ -3734,7 +3734,7 @@ definition of this macro might be
 @smallexample
 #define FUNCTION_ARG_PASS_BY_REFERENCE\
 (CUM, MODE, TYPE, NAMED)  \
-  MUST_PASS_IN_STACK (MODE, TYPE)
+  targetm.calls.must_pass_in_stack (MODE, TYPE)
 @end smallexample
 @c this is *still* too long.  --mew 5feb93
 @end defmac