Three changes:
1. Convert signed integer types to signless versions.
2. Implement the @sext and @zext parameter attributes. Previously the
   type of an function parameter was used to determine whether it should
   be sign extended or zero extended before the call. This information is
   now communicated via the function type's parameter attributes.
3. The interface to LowerCallTo had to be changed in order to accommodate
   the parameter attribute information. Although it would have been
   convenient to pass in the FunctionType itself, there isn't always one
   present in the caller. Consequently, a signedness indication for the
   result type and for each parameter was provided for in the interface
   to this method. All implementations were changed to make the adjustment
   necessary.

llvm-svn: 32788

doesn't matter as it is determined in the way the constant is used.

llvm-svn: 32733

llvm-svn: 32685

llvm-svn: 32648

2. Allow the jit to handle PIC relocable jump tables.

llvm-svn: 32581

llvm-svn: 32471

llvm-svn: 32470

llvm-svn: 32462

llvm-svn: 32460

now cerr, cout, and NullStream resp.

llvm-svn: 32298

llvm-svn: 31992

The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931

llvm-svn: 31883

llvm-svn: 31347

2. Added partial debug support for mingw\cygwin targets (the same as
   Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
   for storing debug info by default, thus many (runtime) libraries has
   this information included. These formats shouldn't be mixed in one binary
   ('stabs' & 'DWARF'), otherwise binutils tools will be confused.

llvm-svn: 31311

llvm-svn: 31266

llvm-svn: 31171

This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063

llvm-svn: 31001

llvm-svn: 30997

As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.

llvm-svn: 30873

section.  This will fix alpha when Andrew implements
AlphaTargetMachine::getTargetLowering().

llvm-svn: 30779

llvm-svn: 30757

allowing label differences to work.  This fixes CodeGen/X86/pic_jumptable.ll

llvm-svn: 30744

llvm-svn: 30742

llvm-svn: 30736

is needed to support targets where {|} aren't special symbols.

llvm-svn: 30712

llvm-svn: 30659

llvm-svn: 30620

character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.

llvm-svn: 30619

because they have an aggressive linker that does dead code stripping.

llvm-svn: 30604

llvm-svn: 30593

llvm-svn: 30462

llvm-svn: 30461

llvm-svn: 30326

representing expressions that can only be resolved at link time, etc.

llvm-svn: 30278

llvm-svn: 30162

llvm-svn: 30151

llvm-svn: 30126

llvm-svn: 30117