llvm-svn: 29471

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: 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: 29447

llvm-svn: 29443

llvm-svn: 29442

llvm-svn: 29436

llvm-svn: 29434

llvm-svn: 29433

llvm-svn: 29431

llvm-svn: 29430

llvm-svn: 29428

llvm-svn: 29422

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: 29417

llvm-svn: 29414

llvm-svn: 29413

fold them.  This correctly truncates constants that are too large for the
destination slot and makes the code easier to understand.  This fixes PR853
and Regression/CodeGen/X86/2006-07-28-AsmPrint-Long-As-Pointer.ll

llvm-svn: 29408

llvm-svn: 29405

llvm-svn: 29402

llvm-svn: 29401

llvm-svn: 29400

llvm-svn: 29399

llvm-svn: 29396

instead of throwing an exception.  This reduces the amount of code that is
exposed to exceptions (e.g. FileUtilities), though it is clearly only one step
along the way.

llvm-svn: 29395

llvm-svn: 29394

llvm-svn: 29393

on leopard in the jit.

llvm-svn: 29391

This fixes link errors on programs with these on targets with prefixes.

llvm-svn: 29390

llvm-svn: 29384

llvm-svn: 29383

llvm-svn: 29382