llvm-svn: 22560

target data to decide which loop induction variables to strength reduce
and how to do so.  This work is mostly by Chris Lattner, with tweaks by
me to get it working on some of MultiSource.

llvm-svn: 22558

other passes may use it.

llvm-svn: 22557

llvm-svn: 22523

is actually dead because of this!

llvm-svn: 22515

explained in the comment.

This fixes UnitTests/2003-09-18-BitFieldTest on darwin

llvm-svn: 22483

as a signed compare.  This patch may fix PR597, but is correct in any case.

llvm-svn: 22465

Because the instcombine has to scan the entire function when it starts up
to begin with, we might as well do it in DFO so we can nuke unreachable code.

This fixes: Transforms/InstCombine/2005-07-07-DeadPHILoop.ll

llvm-svn: 22348

The optimization for locally used allocas was not safe for allocas that
were read before they were written.  This change disables that optimization
in that case.

llvm-svn: 22318

llvm-svn: 22312

is a mismatch in their character type pointers (i.e. fprintf() prints an
array of ubytes while fwrite() takes an array of sbytes).
We can probably do better than this (such as casting the ubyte to an
sbyte).

llvm-svn: 22310

llvm-svn: 22277

llvm-svn: 22265

llvm-svn: 22263

llvm-svn: 22254

not casting to the correct type.

llvm-svn: 22250

GCC 4.0.0 compiler (sometimes incorrectly) warns about under release build.

llvm-svn: 22249

It is actually always true.  This fixes PR586 and
Transforms/InstCombine/2005-06-16-SetCCOrSetCCMiscompile.ll

llvm-svn: 22236

Transforms/InstCombine/2005-06-16-RangeCrash.ll

llvm-svn: 22234

This fixes PR584 and Transforms/SimplifyCFG/2005-06-16-PHICrash.ll

llvm-svn: 22232

llvm-svn: 22230

llvm-svn: 22227

llvm-svn: 22225

is always ubyte, get the type being shifted).  This unbreaks espresso

llvm-svn: 22224

llvm-svn: 22223

BB iterator.  This fixes Transforms/IndVarsSimplify/2005-06-15-InstMoveCrash.ll

llvm-svn: 22221

or other uses hanging off of them.

llvm-svn: 22219

Do not perform undefined out of range shifts.

llvm-svn: 22217

allows test programs to succeed. Actual fix for this is forthcoming.

llvm-svn: 22213

fix the bzip2 test. A better hack is needed.

llvm-svn: 22209

llvm-svn: 22206

(void*)0.

llvm-svn: 22205

llvm-svn: 22192

document what its for a little better.

llvm-svn: 22164

llvm-svn: 22163

llvm-svn: 22162

llvm-svn: 22161

  sprintf(P, "%s", X);

Where X is not an sbyte*.  This fixes the bug JohnMC reported on llvm-bugs.

llvm-svn: 22159

llvm-svn: 22158

llvm-svn: 22113