On Tue, 2013-08-20 at 14:03 +0200, Paolo Carlini wrote: > Hi, > > sorry it the issue is by now well known but... I see many libstdc++-v3 > regressions on at least x86_64-linux. When running the libstdc++-v3 > testsuite (which uses PCHs) one gets tons of new fails like the below. > That's annoying, a lot of confusing noise. > > Thanks! > Paolo. > > PS: CC-ing two "random" ;) people lately very active.
Sorry about this - looking at the backtrace this could well be due to me, specifically r201865, which moved the gcc::pass_manager and all the passes into the GC heap (so that we can then move GC-owned per-pass state into the pass instances). This would require pch files to be regenerated, but presumably the test suite does this, right? I did rerun the bootstrap and regression tests before committing (based on clean builds with and without the patches), but presumably something unexpected is happening. I'm investigating now. (FWIW, if we have to back out r201865, I believe we also have to back out r201864). > /////////////////////////// > > FAIL: 17_intro/headers/c++200x/stdc++.cc (test for excess errors) > Excess errors: > /home/paolo/Gcc/svn-dirs/trunk-build/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/shared_ptr_base.h:567:2: > > internal compiler error: Segmentation fault > 0xb2521f crash_signal > /scratch/Gcc/svn-dirs/trunk/gcc/toplev.c:335 > 0xa747a7 gcc::pass_manager::gt_ggc_mx() > /scratch/Gcc/svn-dirs/trunk/gcc/passes.c:201 > 0x9652b5 ggc_mark_root_tab > /scratch/Gcc/svn-dirs/trunk/gcc/ggc-common.c:133 > 0x965600 ggc_mark_roots() > /scratch/Gcc/svn-dirs/trunk/gcc/ggc-common.c:152 > 0x7c1f44 ggc_collect() > /scratch/Gcc/svn-dirs/trunk/gcc/ggc-page.c:2077 > 0x836995 cgraph_finalize_function(tree_node*, bool) > /scratch/Gcc/svn-dirs/trunk/gcc/cgraphunit.c:456 > 0x6e882f expand_or_defer_fn(tree_node*) > /scratch/Gcc/svn-dirs/trunk/gcc/cp/semantics.c:3941 > 0x719104 maybe_clone_body(tree_node*) > /scratch/Gcc/svn-dirs/trunk/gcc/cp/optimize.c:428 > 0x6e848f expand_or_defer_fn_1(tree_node*) > /scratch/Gcc/svn-dirs/trunk/gcc/cp/semantics.c:3866 > 0x6e8808 expand_or_defer_fn(tree_node*) > /scratch/Gcc/svn-dirs/trunk/gcc/cp/semantics.c:3936 > 0x5ce0ed instantiate_decl(tree_node*, int, bool) > /scratch/Gcc/svn-dirs/trunk/gcc/cp/pt.c:19269 > 0x6096df instantiate_pending_templates(int) > /scratch/Gcc/svn-dirs/trunk/gcc/cp/pt.c:19356 > 0x646b2a cp_write_global_declarations() > /scratch/Gcc/svn-dirs/trunk/gcc/cp/decl2.c:4064 > > Thanks! > Paolo. > >
