[Bug middle-end/31068] ICE at -O1 -fipa-pta

[dberlin at dberlin dot org]

------- Comment #1 from dberlin at gcc dot gnu dot org  2007-03-07 14:31 -------
Subject: Re:  New: ICE at -O1 -fipa-pta

On 7 Mar 2007 10:32:37 -0000, fxcoudert at gcc dot gnu dot org
<gcc-bugzilla@gcc.gnu.org> wrote:
> I saw the -fipa-pta option in the GCC manual, and decided to try it on
> mainline. But... I can't get it to work with any C code (or Fortran):
>
> $ cat a.c
> void foo() { ; }
>
> $ gcc -c -O1 -fipa-pta a.c
> a.c: In function 'foo':
> a.c:5: error: stmt (0x2a983e4140) marked modified after optimization pass:
> return;
> a.c:5: internal compiler error: verify_ssa failed
>
> bonzini suggested I asked Daniel if it was expected or not, so... here it is.
>
Honza broke it when he merged IPA SSA changes.
Honza, can i just add TODO_update_ssa to an IPA pass, or is that broken?

If it works, then you can fix this just by adding TODO_update_ssa to
the todo_finish_flags of pass_ipa_pta.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31068