Please verify.

llvm-svn: 86397

  load of a GV from constantpool and then add pc. It allows the code sequence to
  be rematerializable so it would be hoisted by machine licm.
- Add a late pass to break these pseudo instructions into a number of real
  instructions. Also move the code in Thumb2 IT pass that breaks up t2MOVi32imm
  to this pass. This is done before post regalloc scheduling to allow the
  scheduler to proper schedule these instructions. It also allow them to be
  if-converted and shrunk by later passes.

llvm-svn: 86304

llvm-svn: 86251

llvm-svn: 85914

llvm-svn: 85850

I'm going to redo this using the OptimizeForSize function attribute.

llvm-svn: 85426

use it to control tail merging when there is a tradeoff between performance
and code size.  When there is only 1 instruction in the common tail, we have
been merging.  That can be good for code size but is a definite loss for
performance.  Now we will avoid tail merging in that case when the
optimization level is "Aggressive", i.e., "-O3".  Radar 7338114.

Since the IfConversion pass invokes BranchFolding, it too needs to know
the optimization level.  Note that I removed the RegisterPass instantiation
for IfConversion because it required a default constructor.  If someone
wants to keep that for some reason, we can add a default constructor with
a hard-wired optimization level.

llvm-svn: 85346

llvm-svn: 84868

Move if-conversion before post-regalloc scheduling so the predicated instruction get scheduled properly.

llvm-svn: 84843

llvm-svn: 84831

llvm-svn: 83236

llvm-svn: 83145

Otherwise, it is always set to "default", which prevents debug info from
even being generated during isel.  Radar 7250345.

llvm-svn: 82988

llvm-svn: 82893

llvm-svn: 82838

llvm-svn: 82837

llvm-svn: 81773

llvm-svn: 79773

llvm-svn: 79763

llvm-svn: 79084

x86_64-apple-darwin10.

--- Reverse-merging r78895 into '.':
U    test/CodeGen/PowerPC/2008-12-12-EH.ll
U    lib/Target/DarwinTargetAsmInfo.cpp
--- Reverse-merging r78892 into '.':
U    include/llvm/Target/DarwinTargetAsmInfo.h
U    lib/Target/X86/X86TargetAsmInfo.cpp
U    lib/Target/X86/X86TargetAsmInfo.h
U    lib/Target/ARM/ARMTargetAsmInfo.h
U    lib/Target/ARM/ARMTargetMachine.cpp
U    lib/Target/ARM/ARMTargetAsmInfo.cpp
U    lib/Target/PowerPC/PPCTargetAsmInfo.cpp
U    lib/Target/PowerPC/PPCTargetAsmInfo.h
U    lib/Target/PowerPC/PPCTargetMachine.cpp
G    lib/Target/DarwinTargetAsmInfo.cpp

llvm-svn: 78919

don't need to be exported from the .o files.

llvm-svn: 78892

pair instead of from a virtual method on TargetMachine.  This cuts the final
ties of TargetAsmInfo to TargetMachine, meaning that MC can now use 
TargetAsmInfo.

llvm-svn: 78802

LLVMTargetMachine ctor.  It is currently unused.

llvm-svn: 78711

llvm-svn: 78666

llvm-svn: 78654

Enable Thumb2 instruction shrinking (32-bit to 16-bit) pass. Convert a bunch of thumb2 tests to FileCheck.

llvm-svn: 78622

llvm-svn: 78456

that have that constraint.  This is currently just assigning a fixed set of
registers, and it only handles VLDn for n=2,3,4 with DPR registers.
I'm going to expand it to handle more operations next; we can make it smarter
once everything is working correctly.

llvm-svn: 78256

llvm-svn: 78146

Get rid of yesterday's code to fix the register usage during isel.
Select the new DAG nodes to machine instructions.  The new pre-alloc pass
to choose adjacent registers for these results is not done, so the
results of this will generally not assemble yet.

llvm-svn: 78136

llvm-svn: 78104

 - The C, C++, MSIL, and Mips backends still need the module.

llvm-svn: 77927

Module*.

Also, dropped uses of TargetMachine where unnecessary. The only target which
still takes a TargetMachine& is Mips, I would appreciate it if someone would
normalize this to match other targets.

llvm-svn: 77918

llvm-svn: 77878

llvm-svn: 77233

 - Less boilerplate == good.

llvm-svn: 77052

llvm-svn: 76344

variables.
 - Module initialization functions supplanted the need for these.

llvm-svn: 75886

 - No functionality change.

llvm-svn: 75859