On Thu, Jun 30, 2011 at 7:01 AM, Richard Guenther <rguent...@suse.de> wrote: > > This patch makes IPA-PTA work during the ltrans stage of LTO. > It basically makes sure to honor the accessed-from-other-ltrans-unit > flags for variables and functions where appropriate. > > With this patch, IPA-PTA survives LTO bootstrap (with -fipa-pta > hard-wired to 1 in common.opt). Before the patch we miscompiled > the stage2 compiler (unsurprisingly). > > Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk. > > I hope to get to some of the remaining TODOs for IPA-PTA (basically > fixup nonlocal handling throughout the compiler ...) and then maybe > look at compile-time and memory usage issues. > > Richard. > > 2011-06-29 Richard Guenther <rguent...@suse.de> > > * opts.c (finish_options): Do not disable IPA-PTA during ltrans. > * tree-ssa-structalias.c (create_variable_info_for): Do not > add initial constraints for non-var-decls. Properly handle > globals in other ltrans partitions. > (intra_create_variable_infos): Manually create constraints for > the fake no-alias parameter. > (ipa_pta_execute): Dump the cgraph, handle ltrans partitions properly > and assert there are no clones. >
This caused: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49596 -- H.J.
