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Date: Tue, 31 Jan 2012 19:41:52 +0100
From: Christian Franke <Christian DOT Franke AT t-online DOT de>
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To: cygwin AT cygwin DOT com
Subject: llvm/clang 3.0-1 silently ignores C++ exception handling
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Clang++ 3.0-1 does not produce any exception handling code. Unwind 
tables and code within catch(.) {...} blocks are not generated. Throw 
always abort()s program.

$ cat trycatch.cc
void do_work();
void handle_error();

void func()
{
   try { do_work();  }
   catch (...) { handle_error(); }
}

$ clang++ -fexceptions -S trycatch.cc

$ grep handle_error trycatch.s

$ cat trycatch.s
...
__Z4funcv:
         pushl   %ebp
         movl    %esp, %ebp
         subl    $8, %esp
         calll   __Z7do_workv
         addl    $8, %esp
         popl    %ebp
         ret


$ g++ -S trycatch.cc

$ grep handle_error trycatch.s
         call    __Z12handle_errorv


Is this as excepted?

Christian


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