llvm-svn: 23476

llvm-svn: 23475

llvm-svn: 23473

cross MBB pollution.

llvm-svn: 23470

llvm-svn: 23469

Split SimpleConstantVal up into its components, so each Constant subclass getsa different enum value.  This allows 'classof' for these to be really simple,not needing to call getType() anymore.

This speeds up isa/dyncast/etc for constants, and also makes them smaller.
For example, the text section of a release build of InstCombine.cpp shrinks
from 230037 bytes to 216363 bytes, a 6% reduction.

llvm-svn: 23467

ctor-list-opt.ll:CTOR8

llvm-svn: 23465

potentially replaced at link-time.

llvm-svn: 23463

because gccas runs globalopt before inlining.

This implements ctor-list-opt.ll:CTOR7

llvm-svn: 23462

llvm-svn: 23460

eh lowering as well.

llvm-svn: 23459

llvm-svn: 23458

for testing and will require target machine info to do a proper scheduling.
The simple scheduler can be turned on using -sched=simple (defaults
to -sched=none)

llvm-svn: 23455

llvm-svn: 23453

llvm-svn: 23452

llvm-svn: 23450

ctor-list-opt.ll:CTOR5.

llvm-svn: 23449

llvm-svn: 23447

ConstantFoldLoadThroughGEPConstantExpr function in the utils lib.

llvm-svn: 23446

as ConstantFoldLoadThroughGEPConstantExpr.

llvm-svn: 23445

pass.

llvm-svn: 23444

llvm-svn: 23442

llvm-svn: 23441

llvm-svn: 23439

global ctors that are simple enough.  This implements ctor-list-opt.ll:CTOR2.

llvm-svn: 23437

llvm-svn: 23435

accepting the null even with a non-65535 init prio

llvm-svn: 23434

Implement the start of global ctor optimization.  It is currently smart
enough to remove the global ctor for cases like this:

struct foo {
  foo() {}
} x;

... saving a bit of startup time for the program.

llvm-svn: 23433

SimplifyLibCalls/2005-05-20-sprintf-crash.ll

llvm-svn: 23430

Match a bunch of idioms for sign extensions, implementing InstCombine/signext.ll

llvm-svn: 23428

sprintf("%s", P)'s that have uses.

s/hasNUses(0)/use_empty()/

llvm-svn: 23425

prefix to a symbol name

llvm-svn: 23421

generated isel now tries li then lis, then lis+ori.

llvm-svn: 23418

llvm-svn: 23411

This implements SimplifyCFG/branch-fold.ll, and is useful on ?:/min/max heavy
code

llvm-svn: 23410

llvm-svn: 23408

llvm-svn: 23407

an llvm-ranlib symtab.  This speeds up gccld -native on an almost empty .o file
from 1.63s to 0.18s.

llvm-svn: 23406

This happens all the time on PPC for bool values, e.g. eliminating a xori
in inverted-bool-compares.ll.

This should be added to the dag combiner as well.

llvm-svn: 23403

llvm-svn: 23400