diff options
| -rw-r--r-- | gcc/reload.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/reload.c b/gcc/reload.c index b1727c8..e48ce28 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -2566,7 +2566,9 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p) || GET_CODE (operand) == PLUS /* We must force a reload of paradoxical SUBREGs of a MEM because the alignment of the inner value - may not be enough to do the outer reference. + may not be enough to do the outer reference. On + big-endian machines, it may also reference outside + the object. On machines that extend byte operations and we have a SUBREG where both the inner and outer modes are no wider @@ -2584,6 +2586,7 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p) < BIGGEST_ALIGNMENT) && (GET_MODE_SIZE (operand_mode[i]) > GET_MODE_SIZE (GET_MODE (operand)))) + || (GET_CODE (operand) == MEM && BYTES_BIG_ENDIAN) #ifdef LOAD_EXTEND_OP || (GET_MODE_SIZE (operand_mode[i]) <= UNITS_PER_WORD && (GET_MODE_SIZE (GET_MODE (operand)) |