llvm-svn: 47496

llvm-svn: 47375

Determine whether a spill kills the register it's spilling before insertion rather than trying to undo the kill marker afterwards.

llvm-svn: 46953

llvm-svn: 46930

llvm-svn: 46861

llvm-svn: 46821

RegAllocaLocal still *requires* LiveVariables since it runs PHIElimination, followed by TwoAddress which requires LiveVariables. We cannot run LiveVariables on non-SSA code.

llvm-svn: 46813

llvm-svn: 46420

and the spill is its kill. However, if the local allocator has determined the
register has not been modified (possible when its value was reloaded), it would
not issue a restore. In that case, mark the last use of the virtual register as
kill.

llvm-svn: 46111

llvm-svn: 46104

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

llvm-svn: 45695

llvm-svn: 45673

llvm-svn: 45484

that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.

llvm-svn: 45467

llvm-svn: 45418

the stored register is killed.

llvm-svn: 44600

llvm-svn: 44517

llvm-svn: 43227

llvm-svn: 37740

certain linkers...

llvm-svn: 36944

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

llvm-svn: 36452

llvm-svn: 34302

llvm-svn: 33749

llvm-svn: 32698

llvm-svn: 32320

is 'unsigned'.

llvm-svn: 32279

llvm-svn: 31806

llvm-svn: 31762

llvm-svn: 31633

allow it to go into an infinite loop, filling up the disk!

llvm-svn: 30494

safe for later allocation.  This fixes McCat/18-imp with llc-beta.

llvm-svn: 30204

llvm-svn: 30198

of unallocatable registers, just because an alias is allocatable.  We were
picking registers like SIL just because ESI was being used.

llvm-svn: 30197

llvm-svn: 30122

Just because an alias of a register is available, it doesn't mean that we
can arbitrarily evict the register.

llvm-svn: 30064

livevariables information.  This fixes several regalloc=local failures on x86

llvm-svn: 30062

llvm-svn: 29911