[Bug gcov-profile/83030] New: [8 regression] ICE in create_pseudo_cfg, at dwarf2cfi.c:2840

["ro at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83030

            Bug ID: 83030
           Summary: [8 regression] ICE in create_pseudo_cfg, at
                    dwarf2cfi.c:2840
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: gcov-profile
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
                CC: ebotcazou at gcc dot gnu.org, hubicka at gcc dot gnu.org,
                    marxin at gcc dot gnu.org
  Target Milestone: ---
              Host: sparc-sun-solaris2.11
            Target: sparc-sun-solaris2.11
             Build: sparc-sun-solaris2.11

Between 20171115 (r254778) and 20171116 (r254837), one testcase regressed on
Solaris 11/SPARC (both 32 and 64-bit):

+FAIL: g++.dg/tree-prof/partition1.C compilation,  -fprofile-use -D_PROFILE_USE
(internal compiler error)
+UNRESOLVED: g++.dg/tree-prof/partition1.C execution,    -fprofile-use
-D_PROFILE_USE

during RTL pass: dwarf2
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/tree-prof/partition1.C: In
function 'int main()':
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/tree-prof/partition1.C:53:1:
internal compiler error: in create_pseudo_cfg, at dwarf2cfi.c:2840
0x89a92b create_pseudo_cfg
        /vol/gcc/src/hg/trunk/local/gcc/dwarf2cfi.c:2840
0x89a92b execute_dwarf2_frame
        /vol/gcc/src/hg/trunk/local/gcc/dwarf2cfi.c:3010
0x89a92b execute
        /vol/gcc/src/hg/trunk/local/gcc/dwarf2cfi.c:3501

Given the timeframe, it seems likely that one of Jan's patches is the culprit.

  Rainer