[Bug middle-end/69817] New: [REGRESSION] ICE in assign_temp at function.c:691

[compnerd at compnerd dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69817

            Bug ID: 69817
           Summary: [REGRESSION] ICE in assign_temp at function.c:691
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: compnerd at compnerd dot org
  Target Milestone: ---

Created attachment 37687
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37687&action=edit
fix_locked_dependencies.ii

Attached is a preprocessed (mostly minimised) test case.  It is getting pretty
hard to reduce this further to analyze what is actually going on.

$ x86_64-pc-linux-gnu-g++ -v
gcc version 6.0.0 20160207 (experimental) (GCC) 

$ x86_64-pc-linux-gnu-g++ -std=c++11 -c fix_locked_dependencies.ii -o /dev/null

asserts in function.c:691

I can provide the unadulterated preprocessed output if desired as some of my
transformations may have altered the original program's validity.

This seems to work fine with gcc 5.1.