This mainly reflects the work of Tobias von Koch.

llvm-svn: 168352

llvm-svn: 168302

ReleaseNotes.html updates reflecting PPC64 Elf Linux efforts and progress.

llvm-svn: 168189

llvm-svn: 168014

llvm-svn: 167734

llvm-svn: 167688

clearing out my backlog of commit mail.

llvm-svn: 167380

llvm-svn: 166969

Change the PassManagerBuilder (used by -O3) loop vectorizer flag from -vectorize to -vectorize-loops because we dont want to share the same flag as the bb-vectorizer.

llvm-svn: 166937

llvm-svn: 166702

llvm-svn: 166621

llvm-svn: 166364

llvm-svn: 166169

llvm-svn: 166123

llvm-svn: 166116

llvm-svn: 166115

llvm-svn: 166113

Add a new optimization pass: Stack Coloring, that merges disjoint static allocations (allocas). Allocas are known to be
disjoint if they are marked by disjoint lifetime markers (@llvm.lifetime.XXX intrinsics).

llvm-svn: 163299

llvm-svn: 162896

llvm-svn: 160168

cycle.

llvm-svn: 157378

llvm-svn: 156852

llvm-svn: 156847

llvm-svn: 156819

llvm-svn: 156772

llvm-svn: 156756

llvm-svn: 156754

llvm-svn: 156745

ReleaseNotes: Add a note about zero_undef on llvm.cttz/ctlz. Extend x86 section. Add a bullet for dwarf access tables.

llvm-svn: 156740

ReleaseNotes: Add a blurb about llvm-mc -g and move inliner changes into the optimizer sections. Verbosify some bullets.

llvm-svn: 156739

                            ^~~~
                            llvm-build

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llvm-svn: 156737

llvm-svn: 156736

llvm-svn: 156735

llvm-svn: 156733

llvm-svn: 156732

llvm-svn: 156731

llvm-svn: 156730

llvm-svn: 156724

llvm-svn: 156655