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* function.c (assign_parms): Don't count pretend args for alignment. 

From-SVN: r78563
This commit is contained in:
Paul Brook 2004-02-27 12:02:55 +00:00 committed by Paul Brook
parent f4bdbead2e
commit 53c428d012
2 changed files with 24 additions and 6 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2004-02-27 Paul Brook <paul@codesourcery.com>
* function.c (assign_parms): Don't count pretend args for alignment.
2004-02-27 Richard Henderson <rth@redhat.com>
* passes.c: New file.

26
gcc/function.c
View File

@ -4285,6 +4285,7 @@ assign_parms (tree fndecl)
/* Total space needed so far for args on the stack,
given as a constant and a tree-expression. */
struct args_size stack_args_size;
HOST_WIDE_INT extra_pretend_bytes = 0;
tree fntype = TREE_TYPE (fndecl);
tree fnargs = DECL_ARGUMENTS (fndecl), orig_fnargs;
/* This is used for the arg pointer when referring to stack args. */
@ -4569,15 +4570,19 @@ assign_parms (tree fndecl)
bits. We must preserve this invariant by rounding
CURRENT_FUNCTION_PRETEND_ARGS_SIZE up to a stack
boundary. */
/* We assume at most one partial arg, and it must be the first
argument on the stack. */
if (extra_pretend_bytes || current_function_pretend_args_size)
abort ();
pretend_bytes = partial * UNITS_PER_WORD;
current_function_pretend_args_size
= CEIL_ROUND (pretend_bytes, STACK_BYTES);
/* If PRETEND_BYTES != CURRENT_FUNCTION_PRETEND_ARGS_SIZE,
insert the padding before the start of the first pretend
argument. */
stack_args_size.constant
= (current_function_pretend_args_size - pretend_bytes);
/* We want to align relative to the actual stack pointer, so
don't include this in the stack size until later. */
extra_pretend_bytes = current_function_pretend_args_size;
}
}
#endif
@ -4586,6 +4591,13 @@ assign_parms (tree fndecl)
locate_and_pad_parm (promoted_mode, passed_type, in_regs,
entry_parm ? partial : 0, fndecl,
&stack_args_size, &locate);
/* Adjust offsets to include pretend args, unless this is the
split arg. */
if (pretend_bytes == 0)
{
locate.slot_offset.constant += extra_pretend_bytes;
locate.offset.constant += extra_pretend_bytes;
}
{
rtx offset_rtx;
@ -4661,7 +4673,7 @@ assign_parms (tree fndecl)
#endif
)
{
stack_args_size.constant += pretend_bytes + locate.size.constant;
stack_args_size.constant += locate.size.constant;
if (locate.size.var)
ADD_PARM_SIZE (stack_args_size, locate.size.var);
}
@ -5273,6 +5285,8 @@ assign_parms (tree fndecl)
last_parm_insn = get_last_insn ();
/* We have aligned all the args, so add space for the pretend args. */
stack_args_size.constant += extra_pretend_bytes;
current_function_args_size = stack_args_size.constant;
/* Adjust function incoming argument size for alignment and