On Thu, Sep 11, 2014 at 03:24:54PM +0200, Bernd Schmidt wrote: > The nvptx backend is somewhat unusual in that call insns set a pseudo. > The combiner is surprised by this and allows combining them into other > insns, which remain as INSN rather than CALL_INSN. Aborts ensue.
distribute_notes has code for when I2 is a CALL. This suggests that on some other targets there can be useful combinations made, so it isn't in that case terribly nice to disable all combinations with CALLs as I0 or I1 or I2. Or it's dead code :-) Segher
