[Bug lto/60721] New: xcoral fails to build with LTO: internal compiler error: verify_flow_info failed

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60721

            Bug ID: 60721
           Summary: xcoral fails to build with LTO: internal compiler
                    error: verify_flow_info failed
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: lto
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org

Created attachment 32497
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32497&action=edit
testcase

> ./xgcc -B. xcoral.i smac.i -fltoxcoral.c: In function 'main':
xcoral.c:216:2: warning: ignoring return value of 'fgets', declared with
attribute warn_unused_result [-Wunused-result]
xcoral.c:238:3: warning: ignoring return value of 'chdir', declared with
attribute warn_unused_result [-Wunused-result]
xcoral.c:273:2: warning: ignoring return value of 'chdir', declared with
attribute warn_unused_result [-Wunused-result]
Smac/smac.c: In function 'init_smac':
Smac/smac.c:176:8: error: control flow in the middle of basic block 2
Smac/smac.c:176:8: error: control flow in the middle of basic block 5
Smac/smac.c:176:8: internal compiler error: verify_flow_info failed
0x69cff9 verify_flow_info()
        /space/rguenther/src/svn/trunk/gcc/cfghooks.c:260
0xb2064a cleanup_tree_cfg_noloop
        /space/rguenther/src/svn/trunk/gcc/tree-cfgcleanup.c:746
0xb20716 cleanup_tree_cfg()
        /space/rguenther/src/svn/trunk/gcc/tree-cfgcleanup.c:801
0x9ed861 execute_function_todo