program.
Added the use of const (which compiles and is hopefully correct).
Added comments.

llvm-svn: 8585

something which is mapped from functions.

llvm-svn: 8580

arguments and environment.
Perhaps it should be merged with the RunProgramWithTimeout function, but I'd
want to allow it to inherit the parent process's stdin and stdout.
I'll save that for a rainy day...

llvm-svn: 8577

llvm-svn: 8572

Thanks to brg for tracking down the problem so precisely!

llvm-svn: 8568

in it being both shorter and more effective.  It no longer depends on the
callgraph, so one FIXME has been fixed.

Additionally, this pass was not able to delete recursive (but dead) functions
if they were pointed to by global variables which were also dead.  In fact
this pass had a lot of problems deleting functions which were only pointed
to by dead globals and other stuff.

Fixing this means that the entire EH library should be stripped away now from
programs that don't use sjlj or exceptions.

llvm-svn: 8567

No really, years.

llvm-svn: 8566

(Partial merge from my working file)

llvm-svn: 8564

llvm-svn: 8562

llvm-svn: 8559

generate the appropriate CallArgsDescriptor and tmp. virtual regs.

llvm-svn: 8554

instruction scheduling (this is off by default).

llvm-svn: 8553

llvm-svn: 8538

was a "major hack"  :)

llvm-svn: 8524

llvm-svn: 8523

contributed by the masterful Bill Wendling!

llvm-svn: 8520

llvm-svn: 8519

llvm-svn: 8518

llvm-svn: 8517

llvm-svn: 8516

llvm-svn: 8514

llvm-svn: 8510

llvm-svn: 8502

Instead, check all uses.
This fixes bug: ScalarRepl/2003-09-12-IncorrectPromote.ll
This also fixes the miscompilation of Ptrdist/bc

llvm-svn: 8493

  - Run mem2reg promotion first
  - Only rerun passes if the previous thing changed something

llvm-svn: 8490

llvm-svn: 8489

Implement InstCombine/mul.ll:test9

llvm-svn: 8488

llvm-svn: 8478

llvm-svn: 8473

the combination more effective

llvm-svn: 8471

llvm-svn: 8469

llvm-svn: 8467

llvm-svn: 8466

  the #define up there too
* Since we're including system headers, use the ones in include/llvm/Config
* While we're here, use the canonical LLVM header ordering algorithm

llvm-svn: 8463

llvm-svn: 8462

construction.  Now there may be multiple root blocks, and null is a
special node used to mark the "virtual" exit node of a CFG.

llvm-svn: 8461

unify all exit nodes of a function to compute post-dominance information.
This does not work with functions that have both unwind and return nodes,
because we cannot unify these blocks.  The new implementation is better
anyway. :)

llvm-svn: 8460

Remove using decl

llvm-svn: 8458

llvm-svn: 8457

llvm-svn: 8456