immediate in small code model. The JIT cannot ensure GV's are placed in the
lower 4G.
- Some preliminary support for large code model.

llvm-svn: 32215

- Proper support for both small static and PIC modes under X86-64
- Some (non-optimal) support for medium modes.

llvm-svn: 32046

llvm-svn: 31952

Correct instructions for moving data between GR64 and SSE registers; also correct load i64 / store i64 from v2i64.

llvm-svn: 31795

llvm-svn: 31435

llvm-svn: 30891

llvm-svn: 30844

operand of a conditional branch to allow load folding into CMP / TEST
instructions.

llvm-svn: 30241

llvm-svn: 30178

llvm-svn: 30177