llvm-svn: 48577

llvm-svn: 48576

Fix bugs encountered, mostly due to range matching for immediates;
the CellSPU's 10-bit immediates are sign extended, covering a
larger range of unsigned values.

llvm-svn: 48575

llvm-svn: 48573

llvm-svn: 48569

llvm-svn: 48567

llvm-svn: 48562

llvm-svn: 48560

llvm-svn: 48556

llvm-svn: 48554

converting call result lowering to use the CallingConvLowering
infastructure.

llvm-svn: 48552

llvm-svn: 48550

llvm-svn: 48545

llvm-svn: 48543

Fix X86's isTruncateFree to not claim that truncate to i1 is free. This fixes Bill's testcase that failed for r48491.

llvm-svn: 48542

llvm-svn: 48538

llvm-svn: 48536

struct types.  Patch by David Chisnall, with some tweaks.

llvm-svn: 48531

llvm-svn: 48530

llvm-svn: 48529

llvm-svn: 48528

llvm-svn: 48527

llvm-svn: 48526

Based on Erick Tryzelaar's patch.

llvm-svn: 48523

1. If part of a register is re-defined, an implicit kill and an implicit def are added to denote read / mod / write. However, this should only be necessary if the register is actually read later. This is a performance issue.
2. If a sub-register is being defined, and it doesn't have a previous use, do not add a implicit kill to the last use of a super-register:
   = EAX, AX<imp-use,kill>
...
AX =
In this case, EAX is live but AX is killed, this is wrong and will cause the coalescer to do bad things.

llvm-svn: 48521

llvm-svn: 48520

attribute instead of ".protected".

llvm-svn: 48516

Fix a x86-64 isel lowering bug that's been around forever. A x86-64 varargs function implicitly reads X86::AL, don't clobber it!

llvm-svn: 48515

for Release with optimization levels greater than -O0.

llvm-svn: 48513

llvm-svn: 48511

llvm-svn: 48510

llvm-svn: 48509

Do not pass -g flag when compiling tests, so remove the C.Flags. This only happens if you have a debug build of llvm.

llvm-svn: 48498

llvm-svn: 48493

variables and methods themselves only use unsigned.)

llvm-svn: 48492

Target independent DAG transform to use truncate for field extraction + sign extend on targets where this is profitable. Passes nightly on x86-64.

llvm-svn: 48491

Rewrite code that propagate isDead information after a dead copy is coalesced. This remove some ugly spaghetti code and fixed a number of subtle bugs.

llvm-svn: 48490

llvm-svn: 48484

llvm-svn: 48483

llvm-svn: 48478