https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66474
--- Comment #6 from Michael Meissner <meissner at gcc dot gnu.org> --- Author: meissner Date: Wed Jun 10 17:34:12 2015 New Revision: 224336 URL: https://gcc.gnu.org/viewcvs?rev=224336&root=gcc&view=rev Log: 2015-06-10 Michael Meissner <meiss...@linux.vnet.ibm.com> Backport from mainline: 2015-06-10 Michael Meissner <meiss...@linux.vnet.ibm.com> PR target/66474 * doc/md.texi (Machine Constraints): Document that on the PowerPC if you use a constraint that targets a VSX register, you must use %x<n> in the template. Modified: branches/gcc-4_8-branch/gcc/ChangeLog branches/gcc-4_8-branch/gcc/doc/md.texi