addrspace(257) -> FS relative on x86.  Patch by Zoltan Varga!

llvm-svn: 70992

Revert part of 70929 that has to do with determining whether a SIB byte is needed. It causes a lot of x86_64 JIT failures.

llvm-svn: 70986

llvm-svn: 70950

- Synchronize instruction length computation code in X86InstrInfo with code in X86CodeEmitter.cpp
Patch by Zoltan Varga.

llvm-svn: 70929

llvm-svn: 70902

Patch by Collin Winter!

llvm-svn: 70898

llvm-svn: 70880

Thanks for Dan Gohman for suggestion!

llvm-svn: 70782

llvm-svn: 70769

llvm-svn: 70768

llvm-svn: 70767

Temporary disable imm patterns for cmp. Actually, all cmp-related stuff (select_cc, setcc, br_cc). needs to be rethought

llvm-svn: 70766

llvm-svn: 70765

llvm-svn: 70763

llvm-svn: 70762

llvm-svn: 70761

llvm-svn: 70760

llvm-svn: 70759

llvm-svn: 70758

llvm-svn: 70757

llvm-svn: 70755

llvm-svn: 70754

llvm-svn: 70753

llvm-svn: 70752

llvm-svn: 70751

llvm-svn: 70748

llvm-svn: 70747

llvm-svn: 70746

It's error-prone to maintain two separate variants of asmprinting stuff, one of which is even used. Drop second (aka 'intel') variant of operands. It can be added later, if needed.

llvm-svn: 70745

llvm-svn: 70744

llvm-svn: 70743

llvm-svn: 70742

llvm-svn: 70741

llvm-svn: 70740

llvm-svn: 70739

llvm-svn: 70738

llvm-svn: 70737

llvm-svn: 70736

llvm-svn: 70735

llvm-svn: 70734