confusion with external linkage types.

llvm-svn: 33663

outweight its computational costs. This patch removes all compaction
table handling from the bcreader and bcwriter. For the record, here's the
difference betweeen having and not having compaction tables for some tests:

Test             With       Without   Size Chg
Olden/mst       5,602         5,598      +0.1%
viterbi        18,026        17,795      +1.3%
obsequi       162,133       166,663      -2.8%
burg          224,090       228,148      -1.8%
kimwitu++   4,933,263     5,121,159      -3.8%
176.gcc     8,470,424     9,141,539      -7.3%

It seems that it is more beneficial to larger files, but even on the largest
test case we have (176.gcc) it only amounts ot an I/O saving of 7.3%.

llvm-svn: 33661

llvm-svn: 33658

llvm-svn: 33657

llvm-svn: 33656

sp, imm instructions implicitly multiply the offset by 4.

llvm-svn: 33653

llvm-svn: 33652

instructions that use these address modes to instructions that use
t_addrmode_sp.

llvm-svn: 33651

  spilled (if it is not already).
- If LR is spilled, use BL to implement far jumps. LR is not used as a GPR
  in thumb mode so it can be clobbered if it is properly spilled / restored
  in prologue / epilogue.
- If LR is force spilled but no far jump has been emitted, try undo'ing the
  spill by:
  push lr -> delete
  pop pc -> bx lr

llvm-svn: 33650

llvm-svn: 33649

llvm-svn: 33644

This doesn't do the "right thing" but will probably work in most cases.

This implements CodeGen/PowerPC/2007-01-29-lbrx-asm.ll.

llvm-svn: 33643

llvm-svn: 33641

llvm-svn: 33640

llvm-svn: 33639

PassManagers.h).

- Add StopPassTimer() and StartPassTimer() to expose TimingInfo to
CallGraphPassManager

- Use these two APIs in CalLgraphPassManager to measure timings.

llvm-svn: 33638

address nodes.

llvm-svn: 33636

regs.

llvm-svn: 33635

llvm-svn: 33634

llvm-svn: 33633

llvm-svn: 33632

for "inreg" calls

llvm-svn: 33631

llvm-svn: 33630

llvm-svn: 33629

llvm-svn: 33628

llvm-svn: 33627

llvm-svn: 33626

llvm-svn: 33625

llvm-svn: 33622

llvm-svn: 33620

llvm-svn: 33619

functions like memcpy, memmove and memset. Ensure only one prototype is
used for these functions and that it matches the system definition by
using the appropriate type for the size argument.

llvm-svn: 33618

Fix initializeConstant, now initializeInt. Fixes major performance
bottleneck.

X == Y || X->DominatedBy(Y) is redundant. Remove the X == Y part.

Fix crasher in makeEqual where getOrInsertNode would add a new constant,
producing an NE relationship between the two members we're trying to make
equal. This now allows us to mark more BBs as unreachable.

llvm-svn: 33612

llvm-svn: 33611

llvm-svn: 33610

Force memcpy to be the 32-bit variant. Since this is only used with
CBE and lli which both target 32-bit machines, this should be okay.

llvm-svn: 33608

numbering somehow? E.g. make return argument the last?

llvm-svn: 33606

llvm-svn: 33605

What compiler are people using that accepts this code?

llvm-svn: 33603

llvm-svn: 33599