Implement reading and writing of the Module's data layout string.

llvm-svn: 33346

- In x86-64 mode, symbols with external linkage (not just symbols which are
  defined externally) requires GOT indirect reference.
- Stylistic code clean up.

llvm-svn: 33345

llvm-svn: 33344

infinitely loops.

llvm-svn: 33343

llvm-svn: 33342

llvm-svn: 33339

llvm-svn: 33338

transform. Change some variable names so it is clear what is source and
what is dest of the cast. Also, add an assert to ensure that the integer
to integer case is asserting if the bitwidths are different. This prevents
illegal casts from being formed and catches bitwidth bugs sooner.

llvm-svn: 33337

llvm-svn: 33336

not to overflow 64-bits and end up with a 0 mask. This caused i64 values to
always be stored as 0 with lots of consequential damage to nightly test.

llvm-svn: 33335

llvm-svn: 33333

mostly be used by back ends that wish to distinguish between integer types
that fit evenly within a natural integer type and those that don't.

llvm-svn: 33328

llvm-svn: 33327

computations do not overflow the intended bit width.

llvm-svn: 33326

bit width.

llvm-svn: 33325

llvm-svn: 33323

sufficient to get llvm-test/SingleSource/UnitTests/Integer/general-test.ll
working with lli in interpreter mode.

llvm-svn: 33321

1. Fix logic for executeGEP. Only 32-bit and 64-bit integer types are
   acceptable as indices.
2. Ensure that all integer cast operations truncate their result to the
   integer size of the operand.

llvm-svn: 33318

llvm-svn: 33317

llvm-svn: 33316

delimits the boundaries of jump tables.  This lets the linker's dead code
stripping optimization do a better job.

llvm-svn: 33315

llvm-svn: 33314

Add the llvm.stacksave and llvm.stackrestore intrinsics that correspond
to the GCC builtins __builtin_stack_save and __builtin_stack_restore. This
allows the CBE to execute these builtins, and fixes:

   test/CodeGen/CBackend/2007-01-17-StackSaveNRestore.ll
   External/SPEC/CINT2000/176.gcc (CBE)

Patch by Gordon Henriksen.

llvm-svn: 33313

Ensure the CBE generates calls to GCC builtins for stack_save and
stack_restore when it encounters the corresponding intrinsics.

Patch by Gordon Henriksen.

llvm-svn: 33312

writers.

llvm-svn: 33311

llvm-svn: 33310

llvm-svn: 33309

Pass Manager Type.

llvm-svn: 33308

llvm-svn: 33307

pass manager type. This allows new FPPassManager to select Call Graph
Pass Manager (if available) as its parent.

llvm-svn: 33306

Support overriding the prefix and DESTDIR variables from the make command
line. This makes the makefile system a little more GNU compliant and the
feature makes it easier for distribution builders to re-target the install
location of LLVM.

llvm-svn: 33305

the .zerofill directive emission to not be darwin-specific

llvm-svn: 33304

llvm-svn: 33303

llvm-svn: 33302

Add new ZeroFillDirective directive.

llvm-svn: 33301

llvm-svn: 33300

non-statics.
* Introduce new option to output zero-initialized data to .bss section.
This can reduce size of binaries. Enable it by default for ELF &
Cygwin/Mingw targets. Probably, Darwin should be also added.

llvm-svn: 33299

llvm-svn: 33298

llvm-svn: 33297

llvm-svn: 33296