diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/expr.c | 31 |
2 files changed, 31 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fa88d55..d74b64a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-08-13 H.J. Lu <hongjiu.lu@intel.com> + + PR middle-end/36701 + * expr.c (emit_group_store): Allocate stack temp with the + largest alignment when copying from register to stack. + 2008-08-13 Richard Guenther <rguenther@suse.de> * tree.h (maybe_fold_offset_to_address): Declare. @@ -2074,12 +2074,31 @@ emit_group_store (rtx orig_dst, rtx src, tree type ATTRIBUTE_UNUSED, int ssize) } else { - gcc_assert (bytepos == 0 && XVECLEN (src, 0)); - dest = assign_stack_temp (GET_MODE (dest), - GET_MODE_SIZE (GET_MODE (dest)), 0); - emit_move_insn (adjust_address (dest, GET_MODE (tmps[i]), bytepos), - tmps[i]); - dst = dest; + enum machine_mode dest_mode = GET_MODE (dest); + enum machine_mode tmp_mode = GET_MODE (tmps[i]); + int dest_size = GET_MODE_SIZE (dest_mode); + int tmp_size = GET_MODE_SIZE (tmp_mode); + + gcc_assert (bytepos == 0 + && XVECLEN (src, 0) + && dest_size == tmp_size); + + if (GET_MODE_ALIGNMENT (dest_mode) + >= GET_MODE_ALIGNMENT (tmp_mode)) + { + dest = assign_stack_temp (dest_mode, dest_size, 0); + emit_move_insn (adjust_address (dest, + tmp_mode, + bytepos), + tmps[i]); + dst = dest; + } + else + { + dest = assign_stack_temp (tmp_mode, tmp_size, 0); + emit_move_insn (dest, tmps[i]); + dst = adjust_address (dest, dest_mode, bytepos); + } break; } } |