Use simple analysis interface to preserve analysis info maintained by other loop passes.

llvm-svn: 40627

llvm-svn: 40626

llvm-svn: 40609

llvm-svn: 40607

llvm-svn: 40606

llvm-svn: 40603

llvm-svn: 40602

llvm-svn: 40599

use up the entire 32-bit address space.

llvm-svn: 40596

llvm-svn: 40595

This commit fixes two things.  One is a pair of VStudio compiler errors stemming from variables
which defined within the for loop statement and also within the body of the for loop.  I fixed these 
by renaming one of the two variables.  Additionally, I've made the Function*->ExFunc map in 
ExternalFunctions.cpp a ManagedStatic object, so that cleanup will be done on llvm_shutdown.  In repeated
uses of the interpreter, where the same Function* address may get used for completely differnet functions,
this was causing a crash.

llvm-svn: 40558

llvm-svn: 40546

almost the same things from LCSSA.

llvm-svn: 40540

from Relation::contradicts in Relation::incorporate.

llvm-svn: 40531

llvm-svn: 40503

llvm-svn: 40498

llvm-svn: 40497

llvm-svn: 40494

Note: This has not yet been thoroughly tested.  Use at your own risk.

llvm-svn: 40489

load elimination code from RedundantLoadElimination.

llvm-svn: 40469

llvm-svn: 40457

llvm-svn: 40456

llvm-svn: 40448

llvm-svn: 40445

llvm-svn: 40440

undefs.

llvm-svn: 40439

reported in PR 1556.

llvm-svn: 40133

llvm-svn: 40124

llvm-svn: 40102

pacifies g++-4.2.

llvm-svn: 40089

llvm-svn: 40085

llvm-svn: 40064

With this, the time to optimize 403.gcc is down to 15.1s.

llvm-svn: 40042

This results in a slight speedup for 403.gcc.

llvm-svn: 40040

reduces the time to optimize 403.gcc from 17.6s to 16.4s.

llvm-svn: 40036

llvm-svn: 40025

This fixes PR1559.

llvm-svn: 40024

beyond the end of an alloca to make FastDSE faster and more aggressive.

llvm-svn: 39945

dead stores on 400.perlbench.

llvm-svn: 39929

llvm-svn: 39921