llvm-svn: 4277

llvm-svn: 4276

Make sure to have a pass name

llvm-svn: 4268

    overhead: Merge 3 parallel vectors into 1, change regsUsed hash_set to be a
    bitvector.  Sped up LLC a little less than 10% in a debug build!

llvm-svn: 4261

llvm-svn: 4179

llvm-svn: 4174

llvm-svn: 4170

llvm-svn: 4169

interface with code that uses symbols in the ansi-c protected namespace.  In
most cases this comes from system header files, such as stdio.h.  In particular,
without this change, a reference to the __iob symbol is mangled into ll_iob,
which is not resolved by libc.

llvm-svn: 4165

the size may be unknown, and is not needed.

llvm-svn: 4153

    reflect the fact that it's a range being defined.

llvm-svn: 4147

These hash lookups were a major sink of time because they happen so often!

llvm-svn: 4136

llvm-svn: 4135

(1) Padding bytes between structure fields (for alignment) were never
    being emitted into the constant pool so the layout did not match!
(2) In printing constants, structures containing structures or arrays
    were never handled.
(3) Support new model for external/uninitialized/initialized globals.
    Uninitialized globals are no longer emitted since they are external.
    Initialized globals may go either in .bss or in .data.

llvm-svn: 4134

We now use %g1 instead since that is shared and volatile.

llvm-svn: 4133

llvm-svn: 4132

(2) Use intelligent multiply selection code for array allocas.
(3) Don't use cache padding for alloca'd stack slots!
(4) Bug fix in handling call arguments: was not copying sixth FP arg
    to int reg. when calling a function with no prototype.

llvm-svn: 4130

llvm-svn: 4129

llvm-svn: 4128

this is a common case created by the front-end.

llvm-svn: 4127

instructions so that (a) constant folding is done automatically before
code generation, and (b) selection does not have to deal with them.
Also, check for ConstantPointerRefs in additional to GlobalValues
when creating a GEP to load a global address.

llvm-svn: 4126

since it is defined by the instruction.

llvm-svn: 3966

created here.  Instead they are created in LiveRangeInfo.cpp.  This
simplifies the code here quite a bit.

llvm-svn: 3965

needs the RegClass list to be passed in.

llvm-svn: 3964

llvm-svn: 3963

Don't allow direct FP-to-uint conversion (must be eliminated by preselection).
Address arithmetic for arrays is now entirely 64-bit so no sign-ext needed.

llvm-svn: 3961

llvm-svn: 3960

llvm-svn: 3959

llvm-svn: 3957

llvm-svn: 3927

object files.  Also,

llvm-svn: 3884

llvm-svn: 3883

llvm-svn: 3873

llvm-svn: 3872

llvm-svn: 3846

routines supporting machine code optimization.
Also added method MachineInstrInfo::getNOPOpCode().

llvm-svn: 3845

llvm-svn: 3840

Original logs for PreSelection.cpp:

  revision 1.2
  date: 2002/09/17 23:50:32;  author: lattner;  state: Exp;  lines: +1 -3
  Don't put default parameter values into .cpp files, it breaks 3.x compilers

  revision 1.1
  date: 2002/09/16 15:31:13;  author: vadve;  state: Exp;
  New preselection pass that specializes LLVM code for a target machine,
  while remaining in legal portable LLVM form and preserving type
  information and type safety.

llvm-svn: 3838

llvm-svn: 3778

llvm-svn: 3744