If target decides to create an emergency spill slot, make sure it's closest to SP or frame pointer.

llvm-svn: 34965

Delete register scavenger when done with it.

llvm-svn: 34786

Interface clean up.

llvm-svn: 34772

add a newline at end of file

llvm-svn: 34735

Make requiresRegisterScavenging determination on a per MachineFunction basis.

llvm-svn: 34711

MRegisterInfo disowns RegScavenger. It's immutable.

llvm-svn: 34706

Let MRegisterInfo now owns RegScavenger.

llvm-svn: 34691

forward() should not increment internal iterator. Its client may insert instruction between now and next forward() call.

llvm-svn: 34649

First potential client of register scavenger.

llvm-svn: 34516

Change the MachineDebugInfo to MachineModuleInfo to better reflect usage
for debugging and exception handling.

llvm-svn: 33550

Added a MRegisterInfo hook that tells PEI the target is responsible for
rounding the stack frame to a multiple of stack alignment.

llvm-svn: 33504

PEI is now responsible for adding MaxCallFrameSize to frame size and align the stack. Each target can further adjust the frame size if necessary.

llvm-svn: 33460

Remove an unused variable.

llvm-svn: 33396

We not align the final stack slot but instead let the target do so in emitPrologue(). Each target can make adjustments to the stack frame and re-align the stack as it deem appropriate. Do not align i

We not align the final stack slot but instead let the target do so in emitPrologue(). Each target can make adjustments to the stack frame and re-align the stack as it deem appropriate. Do not align it twice which can end up wasting stack space.

llvm-svn: 33387

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- Fixing naming inconsistency: calleesave -> calleesaved.
- Make use of spillCalleeSavedRegisters() and restoreCalleeSavedRegisters().

llvm-svn: 32822

Initialize {Min|Max}CSFrameIndex properly.

llvm-svn: 32299

TargetRegisterClass specifies the desired spill alignment. However, it cannot be honored if stack alignment is smaller.

llvm-svn: 30648

PEI now place callee save spills closest to the address pointed to by the
incoming stack. This allows X86 backend to use push / pop in epilogue /
prologue.

llvm-svn: 30636

Rename function. It's determining which callee-save registers to save.

llvm-svn: 30616

s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|

llvm-svn: 29911

Tidy up.

llvm-svn: 29888

Consolidate callee saved register information so that it can me used by debug
information and exception handling.

llvm-svn: 29881

Shave another 27K off libllvmgcc.dylib with visibility hidden

llvm-svn: 28973

Remove dead variable

llvm-svn: 28253

Foundation for call frame information.

llvm-svn: 27491