diff options
Diffstat (limited to 'gcc/config/rs6000/rs6000.c')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 3646c6d..54dc0ce 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -17881,8 +17881,9 @@ rs6000_adjust_atomic_subword (rtx orig_mem, rtx *pshift, rtx *pmask) shift = gen_reg_rtx (SImode); addr = gen_lowpart (SImode, addr); emit_insn (gen_rlwinm (shift, addr, GEN_INT (3), GEN_INT (shift_mask))); - shift = expand_simple_binop (SImode, XOR, shift, GEN_INT (shift_mask), - shift, 1, OPTAB_LIB_WIDEN); + if (WORDS_BIG_ENDIAN) + shift = expand_simple_binop (SImode, XOR, shift, GEN_INT (shift_mask), + shift, 1, OPTAB_LIB_WIDEN); *pshift = shift; /* Mask for insertion. */ |