[Bug tree-optimization/87126] [9 Regression] ICE on valid code at -Os and above on x86_64-linux-gnu: in vn_reference_insert, at tree-ssa-sccvn.c:2698

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87126 Richard Biener changed: What|Removed |Added Keywords|ice-on-valid-code | Status|ASSIGNED

[Bug tree-optimization/87126] [9 Regression] ICE on valid code at -Os and above on x86_64-linux-gnu: in vn_reference_insert, at tree-ssa-sccvn.c:2698

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87126 --- Comment #3 from Richard Biener --- Author: rguenth Date: Wed Aug 29 06:47:14 2018 New Revision: 263944 URL: https://gcc.gnu.org/viewcvs?rev=263944=gcc=rev Log: 2018-08-29 Richard Biener PR tree-optimization/87126 *

[Bug tree-optimization/87126] [9 Regression] ICE on valid code at -Os and above on x86_64-linux-gnu: in vn_reference_insert, at tree-ssa-sccvn.c:2698

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87126 --- Comment #2 from Richard Biener --- So when we disentangle the irreducible region we expose a disconnect between the current execution flow and the RPO iteration. This means we insert the load d.2_4 = d; with the VDEF of the later processed

[Bug tree-optimization/87126] [9 Regression] ICE on valid code at -Os and above on x86_64-linux-gnu: in vn_reference_insert, at tree-ssa-sccvn.c:2698

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87126 Richard Biener changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed|