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mips.c (mips_va_arg): Handle arguments that must be passed on the stack.

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* config/mips/mips.c (mips_va_arg): Handle arguments that must be
	passed on the stack.

From-SVN: r71760
This commit is contained in:
Richard Sandiford 2003-09-25 07:04:05 +00:00 • committed by Richard Sandiford
parent 4d6d5bb21a
commit e72ed4a733
2 changed files with 24 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2003-09-25 Richard Sandiford <rsandifo@redhat.com>
* config/mips/mips.c (mips_va_arg): Handle arguments that must be
passed on the stack.
2003-09-25 Nathanael Nerode <neroden@gcc.gnu.org>
* config.gcc (widely ported systems section): Mostly alphabetize

19
gcc/config/mips/mips.c
View file

@ -4277,6 +4277,7 @@ mips_va_arg (tree valist, tree type)
{
/* Not EABI. */
int align;
HOST_WIDE_INT min_offset;
/* ??? The original va-mips.h did always align, despite the fact
that alignments <= UNITS_PER_WORD are preserved by the va_arg
@ -4295,6 +4296,24 @@ mips_va_arg (tree valist, tree type)
t = build (PLUS_EXPR, TREE_TYPE (valist), valist,
build_int_2 (align - 1, 0));
t = build (BIT_AND_EXPR, TREE_TYPE (t), t, build_int_2 (-align, -1));
/* If arguments of type TYPE must be passed on the stack,
set MIN_OFFSET to the offset of the first stack parameter. */
if (!MUST_PASS_IN_STACK (TYPE_MODE (type), type))
min_offset = 0;
else if (TARGET_NEWABI)
min_offset = current_function_pretend_args_size;
else
min_offset = REG_PARM_STACK_SPACE (current_function_decl);
/* Make sure the new address is at least MIN_OFFSET bytes from
the incoming argument pointer. */
if (min_offset > 0)
t = build (MAX_EXPR, TREE_TYPE (valist), t,
make_tree (TREE_TYPE (valist),
plus_constant (virtual_incoming_args_rtx,
min_offset)));
t = build (MODIFY_EXPR, TREE_TYPE (valist), valist, t);
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);