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

llvm-svn: 29471

llvm-svn: 29434

llvm-svn: 29250

llvm-svn: 29221

llvm-svn: 29220

dropped.  This shrinks libllvmgcc.dylib another 67K

llvm-svn: 28975

live at function entry.  This prevents it from using arg registers for other
purposes before the arguments are used.

llvm-svn: 28809

llvm-svn: 28102

llvm-svn: 25515

llvm-svn: 24258

allocator from 23s to 11s on kc++ in debug mode.

llvm-svn: 24255

code.  PrologEpilogInserter hasn't been updated yet though, so targets cannot
use this info.

llvm-svn: 23536

llvm-svn: 22992

llvm-svn: 21420

llvm-svn: 19792

Patch contributed by Morten Ofstad

llvm-svn: 17251

Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137

llvm-svn: 15784

llvm-svn: 15777

llvm-svn: 15775

llvm-svn: 15774

llvm-svn: 15089

The vector may actually be empty if the register that we are marking as
recently used is not actually allocatable.  This happens for physical registers
that are not allocatable, like the ST(x) registers on X86.

llvm-svn: 14195

llvm-svn: 13956

instruction to make the API more flexible.

llvm-svn: 12386

MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.

llvm-svn: 11882

llvm-svn: 11868

to objects.

llvm-svn: 11840

block into MachineBasicBlock::getFirstTerminator().

This also fixes a bug in the implementation of the above in both
RegAllocLocal and InstrSched, where instructions where added after the
terminator if the basic block's only instruction was a terminator (it
shouldn't matter for RegAllocLocal since this case never occurs in
practice).

llvm-svn: 11748

llvm-svn: 11716

one terminator instruction in each basic block.

llvm-svn: 11714

llvm-svn: 11687