Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented

llvm-svn: 49809

Fix x86-64 encoding bug. REX prefix must always follow 0x0F prefix. For example, extractps in 64bit mode: 66 REX 0F 3A 17, not 66 0F 3A REX 17.

llvm-svn: 49157

llvm-svn: 48447

Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF.

llvm-svn: 48380

llvm-svn: 48359

llvm-svn: 47934

llvm-svn: 47933

Add lock prefix support to x86.  Also add the instructions necessary for the atomic ops.  They are still marked pseudo, since I cannot figure out what format to use, but they are the correct opcode.

llvm-svn: 47795

llvm-svn: 47600

llvm-svn: 47079

llvm-svn: 46877

llvm-svn: 45838

Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.

llvm-svn: 45695

Evan, please review the comments I added to getNumDefs to make sure
that they are accurate, thx.

llvm-svn: 45687

llvm-svn: 45680

that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.

llvm-svn: 45674

llvm-svn: 45616

llvm-svn: 45605

llvm-svn: 45576

llvm-svn: 45575

for non-function GV relocations that require function address stubs (e.g. Mac OS X in non-static mode).

llvm-svn: 45527

llvm-svn: 45515

e.g. MO.isMBB() instead of MO.isMachineBasicBlock().  I don't plan on 
switching everything over, so new clients should just start using the 
shorter names.

Remove old long accessors, switching everything over to use the short
accessor: getMachineBasicBlock() -> getMBB(), 
getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc.

llvm-svn: 45464

llvm-svn: 45418

llvm-svn: 45313

to use different mappings for EH and debug info;
no functional change yet.
Fix warning in X86CodeEmitter.

llvm-svn: 44056

llvm-svn: 44048

in the trampoline lowering.  Lookup the jump and
mov opcodes for the trampoline rather than hard
coding them.

llvm-svn: 41577

Change the x86 backend to use extract_subreg for truncation operations. Passes DejaGnu, SingleSource and MultiSource.

llvm-svn: 40578

llvm-svn: 40566

llvm-svn: 36662

Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652

llvm-svn: 36632

target for tabs checking.

llvm-svn: 36146

llvm-svn: 35869

llvm-svn: 35105

llvm-svn: 35097

llvm-svn: 33537

llvm-svn: 32703

is 'unsigned'.

llvm-svn: 32279