[Bug rtl-optimization/45394] [4.6 regression] gnat fails to build on s390, trunk 20100918

2010-10-06 Thread aoliva at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45394 --- Comment #11 from Alexandre Oliva 2010-10-07 06:18:21 UTC --- Aah, I think I got it: the MEM reference may throw, right? Well, if i2src is still available, I guess keeping the debug insn where it is, suitably adjusted, is even better. Did yo

[Bug rtl-optimization/45394] [4.6 regression] gnat fails to build on s390, trunk 20100918

2010-10-06 Thread aoliva at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45394 --- Comment #10 from Alexandre Oliva 2010-10-07 06:15:15 UTC --- (In reply to comment #6) > The combiner swaps 2 insns. This swap looks correct to me. Presumably reg 85 is being dropped, so moving the debug_insn down to a point at which it can