There is a typo in the configure.ac file that causes the HAS_ISA_3_00 variable to not be set. The check for ISA3.0 is missing the HWCAPS bit for ISA3.0. Also, the vassert test is wrong.
Created attachment 104544 [details] PPC64: ISA 3.0 setup fixes. There is a typo in the configure.ac file that causes the HAS_ISA_3_00 variable to not be set. The mask64 value is missing the HWCAPS bit for ISA3.0. bugzilla
Attached patch committed. Vex commit 3317 Valgrind commit 16270