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Re: [RFA] expand from SSA form (1/2)
Hi,
On Tue, 28 Apr 2009, David Edelsohn wrote:
> I tried Andreas Krebbel's patch, but that, unfortunately, did not fix
> the AIX libobjc build.
>
> I am able to bootstrap C, C++, and Fortran, and run the testsuite.
> Objective C is not required on AIX, but the build problem is exposing a
> miscompilation of GCC on PowerPC after the expand SSA merge.
I tried to reproduce this on powerpc64-linux (default languages,
multilibs) but failed. It just bootstraps, and testresults look mostly
sane, the only additional FAIL that I didn't find in older gcc-testresults
posts were execute/va-arg-22.c and dfp/pr3903[45].c :-(
That is with Andreas' patch (the approved one).
I'm at a loss now without a testcase. You said you found the
miscompilation in cgraphunit.c:build_cdtor(), so it possibly helps if you
provide the preprocessed version of that and the command line for
compilation (perhaps also giving a snippet of asm where the wrong
instructions are).
Ciao,
Michael.