diff options
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 3bc86f33982..28dfe7d9e75 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 |