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calls.c (flags_from_decl_or_type): Move ECF_SP_DEPRESSED here. 

* calls.c (flags_from_decl_or_type): Move ECF_SP_DEPRESSED here.
	(expand_call): Delete from here.
	Do pending stack adjustments if ECF_SP_DEPRESSED.

From-SVN: r48267
This commit is contained in:
Richard Kenner 2001-12-22 14:46:58 +00:00 committed by Richard Kenner
parent c470afad3c
commit b5cd4ed4c3
2 changed files with 21 additions and 15 deletions
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4
gcc/ChangeLog
View File

@ -1,5 +1,9 @@
Sat Dec 22 08:59:50 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* calls.c (flags_from_decl_or_type): Move ECF_SP_DEPRESSED here.
(expand_call): Delete from here.
Do pending stack adjustments if ECF_SP_DEPRESSED.
* dwarf2out.c (save_rtx): Deleted.
(mem_loc_descriptor): Do equivalent operation.
(add_const_value_attribute, case CONST): Likewise.

32
gcc/calls.c
View File

@ -789,17 +789,19 @@ setjmp_call_p (fndecl)
return special_function_p (fndecl, 0) & ECF_RETURNS_TWICE;
}
/* Detect flags (function attributes) from the function type node. */
/* Detect flags (function attributes) from the function decl or type node. */
static int
flags_from_decl_or_type (exp)
tree exp;
{
int flags = 0;
tree type = exp;
/* ??? We can't set IS_MALLOC for function types? */
if (DECL_P (exp))
{
type = TREE_TYPE (exp);
/* The function exp may have the `malloc' attribute. */
if (DECL_P (exp) && DECL_IS_MALLOC (exp))
flags |= ECF_MALLOC;
@ -818,6 +820,14 @@ flags_from_decl_or_type (exp)
if (TREE_THIS_VOLATILE (exp))
flags |= ECF_NORETURN;
/* Mark if the function returns with the stack pointer depressed. We
cannot consider it pure or constant in that case. */
if (TREE_CODE (type) == FUNCTION_TYPE && TYPE_RETURNS_STACK_DEPRESSED (type))
{
flags |= ECF_SP_DEPRESSED;
flags &= ~(ECF_PURE | ECF_CONST);
}
return flags;
}
@ -2206,14 +2216,6 @@ expand_call (exp, target, ignore)
else
flags |= flags_from_decl_or_type (TREE_TYPE (TREE_TYPE (p)));
/* Mark if the function returns with the stack pointer depressed. */
if (TREE_CODE (TREE_TYPE (TREE_TYPE (p))) == FUNCTION_TYPE
&& TYPE_RETURNS_STACK_DEPRESSED (TREE_TYPE (TREE_TYPE (p))))
{
flags |= ECF_SP_DEPRESSED;
flags &= ~(ECF_PURE | ECF_CONST);
}
#ifdef REG_PARM_STACK_SPACE
#ifdef MAYBE_REG_PARM_STACK_SPACE
reg_parm_stack_space = MAYBE_REG_PARM_STACK_SPACE;
@ -2658,9 +2660,11 @@ expand_call (exp, target, ignore)
/* Don't let pending stack adjusts add up to too much.
Also, do all pending adjustments now if there is any chance
this might be a call to alloca or if we are expanding a sibling
call sequence. */
call sequence or if we are calling a function that is to return
with stack pointer depressed. */
if (pending_stack_adjust >= 32
|| (pending_stack_adjust > 0 && (flags & ECF_MAY_BE_ALLOCA))
|| (pending_stack_adjust > 0
&& (flags & (ECF_MAY_BE_ALLOCA | ECF_SP_DEPRESSED)))
|| pass == 0)
do_pending_stack_adjust ();
@ -3170,9 +3174,7 @@ expand_call (exp, target, ignore)
if (TYPE_MODE (TREE_TYPE (exp)) == VOIDmode
|| ignore)
{
target = const0_rtx;
}
target = const0_rtx;
else if (structure_value_addr)
{
if (target == 0 || GET_CODE (target) != MEM)