a CF memory leak occurred with GC enabled, etc.

llvm-svn: 50507

llvm-svn: 50506

llvm-svn: 50503

llvm-svn: 50502

llvm-svn: 50500

Provide SizeOfAlignTypeExpr workaround in the static analyzer for taking the sizeof of a ObjCInterfaceType.

llvm-svn: 50499

llvm-svn: 50498

llvm-svn: 50497

llvm-svn: 50494

llvm-svn: 50493

Add db_error as panic function.

llvm-svn: 50489

llvm-svn: 50486

llvm-svn: 50485

llvm-svn: 50484

llvm-svn: 50483

llvm-svn: 50478

Move platform independent code (lowering of possibly overwritten
arguments, check for tail call optimization eligibility) from
target X86ISelectionLowering.cpp to TargetLowering.h and
SelectionDAGISel.cpp.

Initial PowerPC tail call implementation:

Support ppc32 implemented and tested (passes my tests and
test-suite llvm-test).  
Support ppc64 implemented and half tested (passes my tests).
On ppc tail call optimization is performed if 
  caller and callee are fastcc
  call is a tail call (in tail call position, call followed by ret)
  no variable argument lists or byval arguments
  option -tailcallopt is enabled
Supported:
 * non pic tail calls on linux/darwin
 * module-local tail calls on linux(PIC/GOT)/darwin(PIC)
 * inter-module tail calls on darwin(PIC)
If constraints are not met a normal call will be emitted.

A test checking the argument lowering behaviour on x86-64 was added.

llvm-svn: 50477

llvm-svn: 50476

llvm-svn: 50475

llvm-svn: 50474

llvm-svn: 50473

to instcombine.

llvm-svn: 50472

a fine job.

llvm-svn: 50470

llvm-svn: 50469

llvm-svn: 50468

llvm-svn: 50467

llvm-svn: 50466

llvm-svn: 50465

llvm-svn: 50464

llvm-svn: 50463

fixes are target-specific lowering of frame indices, fix constants generated
for the FSMBI instruction, and fixing SPUTargetLowering::computeMaskedBitsFor-
TargetNode().

llvm-svn: 50462

DAG.UpdateNodeOperands() is called before (not after) the call to
TLI.LowerOperation().

llvm-svn: 50461

llvm-svn: 50458

llvm-svn: 50454

llvm-svn: 50453

Patch by Emerson Murhpy-Hill.

llvm-svn: 50452

targets.

llvm-svn: 50451

This removes the failure in null-deref-ps.c (test suite).

llvm-svn: 50449

llvm-svn: 50448

Revert r50441.  The original code was correct.  Add some more comments so that I don't make the same mistake in the future.

llvm-svn: 50446