explanatory comment.

llvm-svn: 6308

llvm-svn: 6271

llvm-svn: 6267

llvm-svn: 6119

llvm-svn: 5991

llvm-svn: 5990

llvm-svn: 5989

llvm-svn: 5985

llvm-svn: 5950

FIX problem where we were incorrectly putting the prefix of the list into the "suffix" list.

llvm-svn: 5926

Fix problem where we accidentally returned KeepPrefix instead of KeepSuffix!

llvm-svn: 5925

about them.  Try to delete them if it doesn't affect the passes.

llvm-svn: 5918

llvm-svn: 5917

Speed up convergence significantly and also reduce the size of testcases by making large portions of a function's CFG dead at a time.

llvm-svn: 5915

-    if (I->isExternal() && !Functions.count(I))
+    if (!I->isExternal() && !Functions.count(I))

We were not actually deleting any functions from the module!

llvm-svn: 5914

llvm-svn: 5913

llvm-svn: 5912

only occur when multiple passes interact or when multiple functions exist in a module

llvm-svn: 5911

Move function to generic code

llvm-svn: 5910

llvm-svn: 5909

llvm-svn: 5908

llvm-svn: 5907

llvm-svn: 5905

llvm-svn: 5904

llvm-svn: 5900

is miscompiling.

llvm-svn: 5893

llvm-svn: 5891

llvm-svn: 5888

llvm-svn: 5873

llvm-svn: 5723

  - This also speeds it up as the bytecode writer isn't terribly fast.
* Add a new cleanup pass after everything else to run -funcresolve -globaldce

llvm-svn: 5668

llvm-svn: 5428

out of a large function to reduce it.

llvm-svn: 5408

llvm-svn: 5403

llvm-svn: 5269

llvm-svn: 5136

llvm-svn: 5120

llvm-svn: 5119

llvm-svn: 4789