[Bug middle-end/83685] New: [8 Regression] ICE: SSA corruption

[doko at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83685

            Bug ID: 83685
           Summary: [8 Regression] ICE: SSA corruption
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org
  Target Milestone: ---

seen building covered on x86_64-linux-gnu, r256068.

$ gcc -c -O2 score.i 

Unable to coalesce ssa_names 4 and 17 which are marked as MUST COALESCE.
e_4(ab) and  e_17(ab)
during RTL pass: expand
score.i: In function 'd':
score.i:5:6: internal compiler error: SSA corruption
 void d() {
      ^
Please submit a full bug report,
with preprocessed source if appropriate.