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(expand_call): Set nregs to -1 for BLKmode parameter,

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then before move_block_to_reg call set it to the type size.

From-SVN: r6660
This commit is contained in:
Jim Wilson 1994-02-27 15:19:49 -08:00
parent d58b6986f4
commit d391688a17
1 changed files with 11 additions and 5 deletions
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16
gcc/calls.c
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@ -1787,8 +1787,7 @@ expand_call (exp, target, ignore)
we just use a normal move insn. */
nregs = (partial ? partial
: (TYPE_MODE (TREE_TYPE (args[i].tree_value)) == BLKmode
? ((int_size_in_bytes (TREE_TYPE (args[i].tree_value))
+ (UNITS_PER_WORD - 1)) / UNITS_PER_WORD)
? -1
: 0));
/* If simple case, just do move. If normal partial, store_one_arg
@ -1809,9 +1808,16 @@ expand_call (exp, target, ignore)
#endif
else if (args[i].partial == 0 || args[i].pass_on_stack)
move_block_to_reg (REGNO (reg),
validize_mem (args[i].value), nregs,
args[i].mode);
{
/* This value might be zero, if the argument is a zero size
structure with no fields, so we can't use it to set nregs
above. */
nregs = ((int_size_in_bytes (TREE_TYPE (args[i].tree_value))
+ (UNITS_PER_WORD - 1)) / UNITS_PER_WORD);
move_block_to_reg (REGNO (reg),
validize_mem (args[i].value), nregs,
args[i].mode);
}
push_to_sequence (use_insns);
if (nregs == 0)