[Issue 4811] New: ICE when goto into try/catch block

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=4811

           Summary: ICE when goto into try/catch block
           Product: D
           Version: D1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: ibuclaw at ubuntu.com


--- Comment #0 from Iain Buclaw <ibuclaw at ubuntu.com> 2010-09-04 08:17:53 PDT ---
The test case:

void main()
{
   goto L1;
   try { L1: { } }
   catch { }
}

Results in an ICE when trying to compile.

Internal error: ../ztc/cgcod.c 989


Similarly, this produces bad codegen.

void main()
{
   goto L1;
   try { }
   catch { L1: { } }
}

And a segmentation fault occurs during runtime. My guess is that because the
try{} body is empty, the entire block gets optimised out, but the goto
statement is still left in, where it now jumps to an invalid/null address.

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