[Bug tree-optimization/71818] New: [7 Regression] ICE in as_a, at is-a.h:192 w/ -O2 -ftree-vectorize

alahay01 at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Jul 8 09:23:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71818

            Bug ID: 71818
           Summary: [7 Regression] ICE in as_a, at is-a.h:192 w/ -O2
                    -ftree-vectorize
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: alahay01 at gcc dot gnu.org
  Target Milestone: ---

This bug is for the regression found by Qirun Zhang here:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71667#c4

Splitting out from PR 71667 because it is a different issue.

The bug is caused because one for the uses of the live statement is neither a
phi nor a debug statement.


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