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SSA-DCE broken on mainline


Hija,

Any sourcecode, even simple things like:
extern void foo ();

int main ()
{
  foo ();
}

fail to compile with latest sources on powerpc-linux-gnu
with -fssa -fssa-dce with -O[12].

test3.c: In function `main':
test3.c:6: RTL flag check: INSN_DEAD_CODE_P used with unexpected rtx
code `note' in mark_all_insn_unnecessary, at ssa-dce.c:445

-- 
Servus,
       Daniel


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