diff options
Diffstat (limited to 'gcc/toplev.c')
| -rw-r--r-- | gcc/toplev.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/toplev.c b/gcc/toplev.c index 766aa9917c3..efce98fa30f 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -1330,6 +1330,13 @@ process_options (void) flag_ira_region = optimize_size || !optimize ? IRA_REGION_ONE : IRA_REGION_MIXED; + if (flag_strict_volatile_bitfields > 0 && !abi_version_at_least (2)) + { + warning (0, "-fstrict-volatile-bitfield disabled; " + "it is incompatible with ABI versions < 2"); + flag_strict_volatile_bitfields = 0; + } + /* Unrolling all loops implies that standard loop unrolling must also be done. */ if (flag_unroll_all_loops) |
