[11] RFR(XS): 8197563: assert(is_Loop()) crash in PhaseIdealLoop::try_move_store_before_loop()

Roland Westrelin rwestrel at redhat.com
Mon Feb 12 13:37:17 UTC 2018


The method being compiled has an infinite loop and the head of the loop
is not converted to a LoopNode. A store is moved out of the infinite
loop. Some code I added with 8186027 (C2: loop strip mining) assumes the
head is a loop and we hit the assert failure. The fix I propose is not
never try to move a store out of loop if the head is not a LoopNode.


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