The lxv instruction is failing on a Valgrind test of the register number being odd. This Valgrind test only applies to load/store functions that work on a register pair. This is not the case for the lxv instruction.
Created attachment 104499 [details] http://forums.fedoraforum.org/showthread.php?t=278146 The attached patch fixes the issue.
Fix committed. Valgrind commit 16262, update NEWS file vex commit 3308, add fix to VEX/priv/guest_ppc_toIR.c file