Comment 11 for bug 897583

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In , Jakub-gcc (jakub-gcc) wrote :

Actually, it fails on 4.6 vanilla branch too, just not in GCC 4.6-RH, because we don't enable -fipa-sra by default for -O2/-Os for debug info quality reasons in 4.6, only for -O3 (that is something that is solved in GCC 4.7).

The regression started with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=164135 which started building MEM_REF in the IPA-SRA codepath.

As for your workaround, if you only do it for GCC 4.6.* and not also for 4.7 and later, it is fine, all I would like is that such workarounds don't stick around forever for future versions of GCC.