Compiler crashed when vector elements / global register vars were used in inline assembler with "m" restriction. This patch fixes this.

Differential Revision: http://reviews.llvm.org/D10476


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@243870 91177308-0d34-0410-b5e6-96231b3b80d8