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Commit 0d1416c6 by Bernd Schmidt Committed by Bernd Schmidt
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Remove second arg from assign_parms 

From-SVN: r29431
parent dd42155e
Showing with 47 additions and 56 deletions
gcc/ChangeLog
Wed Sep 15 11:04:43 1999 Bernd Schmidt <bernds@cygnus.co.uk>
* function.c (assign_parms): Delete arg SECOND_TIME. Don't test it,
behave as if it's zero in all cases.
(expand_function_start): Adjust call to assign_parms.
* tree.h (assign_parms): Adjust prototype.
* objc/objc-act.c (hack_method_prototype): Adjust call to
assign_parms.
Tue Sep 14 21:47:06 1999 Jeffrey A Law (law@cygnus.com)
* cse.c (FIXED_BASE_PLUS_P): Do not consider referneces to
......
gcc/function.c
......@@ -3878,19 +3878,11 @@ aggregate_value_p (exp)
/* Assign RTL expressions to the function's parameters.
This may involve copying them into registers and using
those registers as the RTL for them.
If SECOND_TIME is non-zero it means that this function is being
called a second time. This is done by integrate.c when a function's
compilation is deferred. We need to come back here in case the
FUNCTION_ARG macro computes items needed for the rest of the compilation
(such as changing which registers are fixed or caller-saved). But suppress
writing any insns or setting DECL_RTL of anything in this case. */
those registers as the RTL for them. */
void
assign_parms (fndecl, second_time)
assign_parms (fndecl)
tree fndecl;
int second_time;
{
register tree parm;
register rtx entry_parm = 0;
......@@ -3944,8 +3936,7 @@ assign_parms (fndecl, second_time)
if ((ARG_POINTER_REGNUM == STACK_POINTER_REGNUM
|| ! (fixed_regs[ARG_POINTER_REGNUM]
|| ARG_POINTER_REGNUM == FRAME_POINTER_REGNUM))
&& ! second_time)
|| ARG_POINTER_REGNUM == FRAME_POINTER_REGNUM)))
internal_arg_pointer = copy_to_reg (virtual_incoming_args_rtx);
else
internal_arg_pointer = virtual_incoming_args_rtx;
......@@ -4093,8 +4084,7 @@ assign_parms (fndecl, second_time)
if (last_named && !varargs_setup)
{
SETUP_INCOMING_VARARGS (args_so_far, promoted_mode, passed_type,
current_function_pretend_args_size,
second_time);
current_function_pretend_args_size, 0);
varargs_setup = 1;
}
#endif
......@@ -4129,25 +4119,24 @@ assign_parms (fndecl, second_time)
#endif
fndecl, &stack_args_size, &stack_offset, &arg_size);
if (! second_time)
{
rtx offset_rtx = ARGS_SIZE_RTX (stack_offset);
if (offset_rtx == const0_rtx)
stack_parm = gen_rtx_MEM (promoted_mode, internal_arg_pointer);
else
stack_parm = gen_rtx_MEM (promoted_mode,
gen_rtx_PLUS (Pmode,
internal_arg_pointer,
offset_rtx));
/* If this is a memory ref that contains aggregate components,
mark it as such for cse and loop optimize. Likewise if it
is readonly. */
MEM_SET_IN_STRUCT_P (stack_parm, aggregate);
RTX_UNCHANGING_P (stack_parm) = TREE_READONLY (parm);
MEM_ALIAS_SET (stack_parm) = get_alias_set (parm);
}
{
rtx offset_rtx = ARGS_SIZE_RTX (stack_offset);
if (offset_rtx == const0_rtx)
stack_parm = gen_rtx_MEM (promoted_mode, internal_arg_pointer);
else
stack_parm = gen_rtx_MEM (promoted_mode,
gen_rtx_PLUS (Pmode,
internal_arg_pointer,
offset_rtx));
/* If this is a memory ref that contains aggregate components,
mark it as such for cse and loop optimize. Likewise if it
is readonly. */
MEM_SET_IN_STRUCT_P (stack_parm, aggregate);
RTX_UNCHANGING_P (stack_parm) = TREE_READONLY (parm);
MEM_ALIAS_SET (stack_parm) = get_alias_set (parm);
}
/* If this parameter was passed both in registers and in the stack,
use the copy on the stack. */
......@@ -4175,20 +4164,18 @@ assign_parms (fndecl, second_time)
/ (PARM_BOUNDARY / BITS_PER_UNIT)
* (PARM_BOUNDARY / BITS_PER_UNIT));
if (! second_time)
{
/* Handle calls that pass values in multiple non-contiguous
locations. The Irix 6 ABI has examples of this. */
if (GET_CODE (entry_parm) == PARALLEL)
emit_group_store (validize_mem (stack_parm), entry_parm,
int_size_in_bytes (TREE_TYPE (parm)),
(TYPE_ALIGN (TREE_TYPE (parm))
/ BITS_PER_UNIT));
else
move_block_from_reg (REGNO (entry_parm),
validize_mem (stack_parm), nregs,
int_size_in_bytes (TREE_TYPE (parm)));
}
/* Handle calls that pass values in multiple non-contiguous
locations. The Irix 6 ABI has examples of this. */
if (GET_CODE (entry_parm) == PARALLEL)
emit_group_store (validize_mem (stack_parm), entry_parm,
int_size_in_bytes (TREE_TYPE (parm)),
(TYPE_ALIGN (TREE_TYPE (parm))
/ BITS_PER_UNIT));
else
move_block_from_reg (REGNO (entry_parm),
validize_mem (stack_parm), nregs,
int_size_in_bytes (TREE_TYPE (parm)));
entry_parm = stack_parm;
}
}
......@@ -4200,8 +4187,7 @@ assign_parms (fndecl, second_time)
entry_parm = stack_parm;
/* Record permanently how this parm was passed. */
if (! second_time)
DECL_INCOMING_RTL (parm) = entry_parm;
DECL_INCOMING_RTL (parm) = entry_parm;
/* If there is actually space on the stack for this parm,
count it in stack_args_size; otherwise set stack_parm to 0
......@@ -4237,10 +4223,6 @@ assign_parms (fndecl, second_time)
FUNCTION_ARG_ADVANCE (args_so_far, promoted_mode,
passed_type, named_arg);
/* If this is our second time through, we are done with this parm. */
if (second_time)
continue;
/* If we can't trust the parm stack slot to be aligned enough
for its ultimate type, don't use that slot after entry.
We'll make another stack slot, if we need one. */
......@@ -5880,7 +5862,7 @@ expand_function_start (subr, parms_have_cleanups)
/* Initialize rtx for parameters and local variables.
In some cases this requires emitting insns. */
assign_parms (subr, 0);
assign_parms (subr);
/* Copy the static chain now if it wasn't a register. The delay is to
avoid conflicts with the parameter passing registers. */
......
gcc/objc/objc-act.c
......@@ -3087,7 +3087,7 @@ hack_method_prototype (nst_methods, tmp_decl)
init_function_start (tmp_decl, "objc-act", 0);
/* Typically called from expand_function_start for function definitions. */
assign_parms (tmp_decl, 0);
assign_parms (tmp_decl);
/* install return type */
TREE_TYPE (TREE_TYPE (tmp_decl)) = groktypename (TREE_TYPE (nst_methods));
......
gcc/tree.h
......@@ -2306,7 +2306,7 @@ extern void init_dummy_function_start PROTO ((void));
extern void expand_dummy_function_end PROTO ((void));
extern void init_function_for_compilation PROTO ((void));
extern void init_function_start PROTO ((tree, char *, int));
extern void assign_parms PROTO ((tree, int));
extern void assign_parms PROTO ((tree));
extern void put_var_into_stack PROTO ((tree));
extern void uninitialized_vars_warning PROTO ((tree));
extern void setjmp_args_warning PROTO ((void));
......
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