Fix crash on inline asm with 64bit matching input in 32bit GPR

Add support for inline assembly with matching input operand that do not
naturally go in the register class it is constrained to (eg. double in a
32-bit GPR). Note that regular input is already handled by existing
code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338206 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed