Add support for 64-bit 'r' constraint.  Patch by by Rafael ~Avila de Espíndol!
This fixes PR1029 and Regression/CodeGen/X86/x86-64-asm.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32206 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed