Hi,
this patch prevents lto-option to store some flags that does not make snese to
store,
in partiuclar dumpdir and -fresolution. These definitly should not be preserved
from
compile time to link time and in case of incremental linking they caused
trouble with
wrong resolution file being used in some cases.
I guess this is just tip of iceberg - I think we should switch to whitelisting
options
that needs saving rather than saving everything with few exceptions. This is
however
a separate issue.
Bootstrapped/regtested x86_64-linux, OK?
* lto-opts.c (lto_write_options): Skip OPT_dumpdir, OPT_fresolution_.
Index: lto-opts.c
===================================================================
--- lto-opts.c (revision 260042)
+++ lto-opts.c (working copy)
@@ -109,6 +109,8 @@
case OPT_SPECIAL_ignore:
case OPT_SPECIAL_program_name:
case OPT_SPECIAL_input_file:
+ case OPT_dumpdir:
+ case OPT_fresolution_:
continue;
default:
