diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -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, |