llvm-svn: 29470

Looks like libstdc++ implementation does not scale very well. Switch back
to using directly managed arrays.

llvm-svn: 29469

problem.

llvm-svn: 29468

llvm-svn: 29467

up lcssa much in practice.

llvm-svn: 29465

This reduces LCSSA pass time from 1.5s to 0.96s when run on eon in release+asserts mode.

llvm-svn: 29464

down approach, inspired by discussions with Tanya.

This approach is significantly faster, because it does not need dominator
frontiers and it does not insert extraneous unused PHI nodes.  For example, on
252.eon, in a release-asserts build, this speeds up LCSSA (which is the slowest
pass in gccas) from 9.14s to 0.74s on my G5.  This code is also slightly smaller
and significantly simpler than the old code.

Amusingly, in a normal Release build (which includes the
"assert(L->isLCSSAForm());" assertion), asserting that the result of LCSSA
is in LCSSA form is actually slower than the LCSSA transformation pass
itself on 252.eon.  I will see if Loop::isLCSSAForm can be sped up next.

llvm-svn: 29463

llvm-svn: 29457

llvm-svn: 29456

scheduler creator.

llvm-svn: 29452

move the constant pool to .text
correctly print loads of labels
mark R0, R1, R2 and R3 as caller save

llvm-svn: 29451

2. Added argument to instruction scheduler creators so the creators can do
special things.
3. Repaired target hazard code.
4. Misc.

More to follow.

llvm-svn: 29450

llvm-svn: 29449

llvm-svn: 29447

to do the operation and if it fails, oh well.

llvm-svn: 29446

llvm-svn: 29445

llvm-svn: 29444

llvm-svn: 29443

llvm-svn: 29442

llvm-svn: 29438

llvm-svn: 29437

llvm-svn: 29436

llvm-svn: 29435

llvm-svn: 29434

llvm-svn: 29433

llvm-svn: 29432

llvm-svn: 29431

llvm-svn: 29430

the first argument is omitted. Attempt to use a standard/default font.
Make the generation of the DOT file readable.

llvm-svn: 29429

llvm-svn: 29428

llvm-svn: 29426

little about llvm-config as a source for help with library dependencies.

llvm-svn: 29425

llvm-svn: 29424

llvm-svn: 29423

llvm-svn: 29422

obscure error.

llvm-svn: 29421

The CFE refers to all single-register constraints (like "A") by their 16-bit
name, even though the 8 or 32-bit version of the register may be needed.
The X86 backend should realize what is going on and redecode the name back
to its proper form.

llvm-svn: 29420

llvm-svn: 29419

llvm-svn: 29418

llvm-svn: 29417