http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52306
--- Comment #32 from Mikael Pettersson <mikpelinux at gmail dot com> --- (In reply to Andreas Schwab from comment #31) > After backporting the patch to 4.8 there is still a package that fails with > the same error, though it doesn't fail with 4.9. This ICE stopped on trunk with Bin Cheng's "Compute, cache and use cost of auto-increment rtx patterns in IVOPT" patch in r205015, see also http://gcc.gnu.org/ml/gcc-patches/2013-11/msg00156.html Backporting this too to 4.8 stops the ICE there for this test case. However, this patch is just a missed-optimization tweak in ivopts, so I suspect it hides the underlying bug rather than fixing it.
