bootstrap failure in stage3 (integer overflow in preprocessor expression)

[Matthias Klose]

Binary package hint: gcc-snapshot

see the upstream report

[Matthias Klose (doko)]

the bootstrap now works; the upstream report was opened again for gcc-4.4:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42509#c28

[Ulrich Weigand (uweigand)]

I've looked into the history of the underlying problem a bit more and found out:
- in 4.3 and earlier, the problem didn't yet exist
- in 4.5 and later, the problem is fixed
- however, in 4.4, the problem exists as latent wrong-code generation bug

I've suggested on the gcc-patches list that it would be a good idea to backport the fix to 4.4. If they agree, we'd get the fix automatically when moving forward to 4.4.5. Otherwise, we have to decide whether to take the backport into Linaro GCC.

[Ulrich Weigand (uweigand)]

Richard Günther agreed to a 4.4 backport. Working on this now.

[Ulrich Weigand (uweigand)]

I've committed the fix to the upstream 4.4 branch now. Fix will be in 4.4.5 release.

[Michael Hope (michaelh1)]

I'm experimenting with how to track where a fix landed upstream. Please ignore the 'Affects Linaro GCC Tracking' entry above.

[Matthias Klose (doko)]

fixed in gcc-4.4 4.4.4-8ubuntu1

[Ulrich Weigand (uweigand)]

Merge request into Linaro GCC 4.4 now pending.

[Andrew Stubbs (ams-codesourcery)]

Related: lp:gcc-linaro/4.4,revno=93551