[Bug tree-optimization/48611] New: [4.6/4.7 Regression] ICE: SIGSEGV in remap_eh_region_nr (tree-inline.c:1194) with -Os -fopenmp -fexceptions -fno-tree-ccp -fno-tree-copy-prop on basic code

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48611

           Summary: [4.6/4.7 Regression] ICE: SIGSEGV in
                    remap_eh_region_nr (tree-inline.c:1194) with -Os
                    -fopenmp -fexceptions -fno-tree-ccp
                    -fno-tree-copy-prop on basic code
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 23986
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23986
auto-reduced testcase

$ gcc -Os -fopenmp -fexceptions -fno-tree-ccp -fno-tree-copy-prop
testcase-min1.f90
==12201== Invalid read of size 4
==12201==    at 0xBD4B3F: remap_eh_region_nr.isra.81 (tree-inline.c:1194)
==12201==    by 0xBD8A59: remap_gimple_stmt (tree-inline.c:1444)
==12201==    by 0xBD97EF: copy_cfg_body (tree-inline.c:1540)
==12201==    by 0xBDB6B6: copy_body (tree-inline.c:2410)
==12201==    by 0xBDE493: optimize_inline_calls (tree-inline.c:3928)
==12201==    by 0xBB67A2: cgraph_early_inlining (ipa-inline.c:1642)
==12201==    by 0x87F305: execute_one_pass (passes.c:1555)
==12201==    by 0x87F5F4: execute_pass_list (passes.c:1610)
==12201==    by 0x87E80B: do_per_function_toporder (passes.c:1141)
==12201==    by 0x87FA95: execute_ipa_pass_list (passes.c:1927)
==12201==    by 0xBAC6DC: cgraph_optimize (cgraphunit.c:1789)
==12201==    by 0xBAC949: cgraph_finalize_compilation_unit (cgraphunit.c:1102)
==12201==    by 0x836BFC: write_global_declarations (langhooks.c:303)
==12201==    by 0x96CC99: toplev_main (toplev.c:591)
==12201==    by 0x644AB6C: (below main) (in /lib64/libc-2.11.3.so)
==12201==  Address 0x18 is not stack'd, malloc'd or (recently) free'd
==12201== 
testcase-min1.f90: In function 'main':
testcase-min1.f90:8:0: internal compiler error: Segmentation fault
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