https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71677
Bug ID: 71677 Summary: PowerPC ISA 3.0 DImode load/store needs a fix Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: meissner at gcc dot gnu.org Target Milestone: --- If you build the Spec 2006 xalancbmk benchmark for ISA 3.0 (power9), it fails building the XalanNamespacesStack.cpp file. The problem is indexed addressing also matches the %Y constraint as well as the %Z constraint, and it puts out the lxsd instruction instead of the lxsdx instruction. The ISA 3.0 store alternatives have the same problem.