On Thu, Aug 20, 2015 at 11:02:17AM +0200, Andreas Schwab wrote:
> Marek Polacek <pola...@redhat.com> writes:
>
> > PR middle-end/67133
> > * gimple-ssa-isolate-paths.c
> > (insert_trap_and_remove_trailing_statements): Rename to ...
> > (insert_trap): ... this. Don't remove trailing statements; split
> > block instead.
> > (find_explicit_erroneous_behaviour): Don't remove all outgoing edges.
>
> This breaks go on aarch64:
>
> ../../../libgo/go/encoding/gob/decode.go: In function
> ‘gob.decIgnoreOpFor.pN20_encoding_gob.Decoder’:
> ../../../libgo/go/encoding/gob/decode.go:843:1: internal compiler error: in
> operator[], at vec.h:714
> func (dec *Decoder) decIgnoreOpFor(wireId typeId) decOp {
> ^
> 0xac5c3b vec<edge_def*, va_gc, vl_embed>::operator[](unsigned int)
> ../../gcc/vec.h:714
> 0xac5c3b extract_true_false_edges_from_block(basic_block_def*, edge_def**,
> edge_def**)
> ../../gcc/tree-cfg.c:8456
> 0xace9bf gimple_verify_flow_info
> ../../gcc/tree-cfg.c:5260
> 0x6ea1ab verify_flow_info()
> ../../gcc/cfghooks.c:260
> 0xadeca3 cleanup_tree_cfg_noloop
> ../../gcc/tree-cfgcleanup.c:739
> 0xadeca3 cleanup_tree_cfg()
> ../../gcc/tree-cfgcleanup.c:788
> 0x9d21c3 execute_function_todo
> ../../gcc/passes.c:1900
> 0x9d2b07 execute_todo
> ../../gcc/passes.c:2005
Whilst I'm struggling with building cross libgo to reproduce this, is
there something like preprocessed source for go? So that ideally I'd
just run ./go1 foo.go? That'd help tremendously.
Marek
