Eric, I filed a PR29090 for the gcc.dg-struct-layout-1 failure of T(94,struct atal16{}a;,)
...out of the set of failures I see. I noticed that in the assembly from struct-layout-1_y.s, the follow occurs... .comm _a94,1 .stabs "a94:G(0,1)=ar(0,2)[EMAIL PROTECTED];r(0,2);0;01777777777777777777777;;0;04;(1,1)",32,0,1,0 .stabs "long unsigned int:t(0,3)[EMAIL PROTECTED];r(0,3);0;01777777777777777777777;",128,0,0,0 .stabs "test_va:G(0,4)=k(1,4)",32,0,9,0 .literal8 .align 3 Does that match what you see in radar for the lack of aligned uninitialized variable support on Darwin PPC at -m64? If so could you append the radar number for that bug to my PR so they are marked as the same bug? Jack ps I assume there are no fixes in-house at Apple for this one yet?