diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/expr.c | 5 |
2 files changed, 10 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c57fab3..20a0fed 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2003-05-12 DJ Delorie <dj@redhat.com> + + * expr.c (move_by_pieces): Honor the alignment of TO and FROM. + (emit_push_insn): Don't use push when the source alignment is less + than the stack's push rounding. + 2003-05-13 Zack Weinberg <zack@codesourcery.com> * diagnostic.c (output_format): Add support for %m. @@ -1463,7 +1463,7 @@ convert_modes (mode, oldmode, x, unsignedp) If PUSH_ROUNDING is defined and TO is NULL, emit_single_push_insn is used to push FROM to the stack. - ALIGN is maximum alignment we can assume. */ + ALIGN is maximum stack alignment we can assume. */ void move_by_pieces (to, from, len, align) @@ -1477,6 +1477,8 @@ move_by_pieces (to, from, len, align) enum machine_mode mode = VOIDmode, tmode; enum insn_code icode; + align = MIN (to ? MEM_ALIGN (to) : align, MEM_ALIGN (from)); + data.offset = 0; data.from_addr = from_addr; if (to) @@ -3849,6 +3851,7 @@ emit_push_insn (x, mode, type, size, align, partial, reg, extra, && PUSH_ARGS && GET_CODE (size) == CONST_INT && skip == 0 + && MEM_ALIGN (xinner) >= align && (MOVE_BY_PIECES_P ((unsigned) INTVAL (size) - used, align)) /* Here we avoid the case of a structure whose weak alignment forces many pushes of a small amount of data, |