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rs6000.c (rs6000_va_arg <ABI_V4>): Don't use UNITS_PER_WORD to calculate gpr size.

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* config/rs6000/rs6000.c (rs6000_va_arg <ABI_V4>): Don't use
	UNITS_PER_WORD to calculate gpr size.  Re-instate code to set reg
	count to 8 to handle n_reg > 2.

From-SVN: r81880
This commit is contained in:
Alan Modra 2004-05-15 12:39:34 +00:00 • committed by Alan Modra
parent 9322b95bd7
commit 11c01dcc46
2 changed files with 16 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-05-15 Alan Modra <amodra@bigpond.net.au>
* config/rs6000/rs6000.c (rs6000_va_arg <ABI_V4>): Don't use
UNITS_PER_WORD to calculate gpr size. Re-instate code to set reg
count to 8 to handle n_reg > 2.
2004-05-15 Joseph S. Myers <jsm@polyomino.org.uk>
* doc/extend.texi: Update WG14 URL.

12
gcc/config/rs6000/rs6000.c
View file

@ -5144,7 +5144,7 @@ rs6000_va_arg (tree valist, tree type)
sav = build (COMPONENT_REF, TREE_TYPE (f_sav), valist, f_sav);
size = int_size_in_bytes (type);
rsize = (size + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
rsize = (size + 3) / 4;
align = 1;
if (AGGREGATE_TYPE_P (type)
@ -5158,7 +5158,7 @@ rs6000_va_arg (tree valist, tree type)
n_reg = 1;
sav_ofs = 0;
sav_scale = 4;
size = UNITS_PER_WORD;
size = 4;
rsize = 1;
}
else if (TARGET_HARD_FLOAT && TARGET_FPRS
@ -5240,6 +5240,14 @@ rs6000_va_arg (tree valist, tree type)
emit_barrier ();
emit_label (lab_false);
if (n_reg > 2)
{
/* Ensure that we don't find any more args in regs.
Alignment has taken care of the n_reg == 2 case. */
t = build (MODIFY_EXPR, TREE_TYPE (reg), reg, build_int_2 (8, 0));
TREE_SIDE_EFFECTS (t) = 1;
expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
}
}
/* ... otherwise out of the overflow area. */