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| author | Richard Stallman <rms@gnu.org> | 1993-06-14 21:40:37 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1993-06-14 21:40:37 +0000 |
| commit | 3008222343f1160e317ac2528719a855e6b79b88 (patch) | |
| tree | c56a92464797ff565d349dbc15ae9afc62346b99 | |
| parent | 34f921d8b8d544df586cc45d0c3e72928bddeaaa (diff) | |
| download | gcc-3008222343f1160e317ac2528719a855e6b79b88.zip gcc-3008222343f1160e317ac2528719a855e6b79b88.tar.gz gcc-3008222343f1160e317ac2528719a855e6b79b88.tar.bz2 | |
(expand_call): If PCC_STATIC_STRUCT_RETURN and TARGET
is zero, copy result from static location.
From-SVN: r4677
| -rw-r--r-- | gcc/calls.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index 4e0e4e2..03dbdfb 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -1838,15 +1838,21 @@ expand_call (exp, target, ignore) { if (target == 0) { - target = gen_rtx (MEM, TYPE_MODE (TREE_TYPE (exp)), - copy_to_reg (valreg)); - MEM_IN_STRUCT_P (target) - = (TREE_CODE (TREE_TYPE (exp)) == ARRAY_TYPE - || TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE - || TREE_CODE (TREE_TYPE (exp)) == UNION_TYPE - || TREE_CODE (TREE_TYPE (exp)) == QUAL_UNION_TYPE); + /* We used leave the value in the location that it is + returned in, but that causes problems if it is used more + than once in one expression. Rather than trying to track + when a copy is required, we always copy when TARGET is + not specified. This calling sequence is only used on + a few machines and TARGET is usually nonzero. */ + if (TYPE_MODE (TREE_TYPE (exp)) == BLKmode) + target = assign_stack_temp (BLKmode, + int_size_in_bytes (TREE_TYPE (exp)), + 1); + else + target = gen_reg_rtx (TYPE_MODE (TREE_TYPE (exp))); } - else if (TYPE_MODE (TREE_TYPE (exp)) != BLKmode) + + if (TYPE_MODE (TREE_TYPE (exp)) != BLKmode) emit_move_insn (target, gen_rtx (MEM, TYPE_MODE (TREE_TYPE (exp)), copy_to_reg (valreg))); else |