llvm-svn: 15276

llvm-svn: 15275

it (due to calls or globals access).  We now compile `void empty(){}' to `blr'.

llvm-svn: 15274

llvm-svn: 15273

llvm-svn: 15272

llvm-svn: 15271

llvm-svn: 15270

llvm-svn: 15267

functions known to not access memory (like sin/cos) don't access memory! :)

llvm-svn: 15264

llvm-svn: 15263

llvm-svn: 15262

llvm-svn: 15261

understand, and more accurate to boot!  This implements
GlobalModRef/purecse.ll over the previous impl.

llvm-svn: 15260

llvm-svn: 15255

AliasSetTracker (dse and licm).  This implements
DeadStoreElimination/context-sensitive.llx

llvm-svn: 15254

llvm-svn: 15252

llvm-svn: 15251

llvm-svn: 15250

Also, convert C-style comments to C++ and make sure code wraps at 80 cols.

llvm-svn: 15245

  addi r1, r2, 0
  addi r1, <frame index #n>, 0

so we must check for the second parameter being a register for this instruction
to be considered a reg-to-reg copy.

llvm-svn: 15244

llvm-svn: 15243

* List formats of instructions currently recognized as moves

llvm-svn: 15242

llvm-svn: 15240

llvm-svn: 15239

All CVS history was renamed, the *,v were copied over.  No worries.

llvm-svn: 15238

* Implemented GEP folding
* Dynamically output global address stuff once per function
* Fix casting fp<->short/byte

Patch contributed by Nate Begeman.

llvm-svn: 15237

some instruction.  Patch by Nate Begeman.

llvm-svn: 15236

Written by Nate Begeman.

llvm-svn: 15235

llvm-svn: 15234

end of the function (either return or unwind)

llvm-svn: 15232

llvm-svn: 15230

llvm-svn: 15227

llvm-svn: 15226

scrambled around almost at random, having really bad effects on icache locality.

llvm-svn: 15225

(At[3] << 24) is an int type and it is being coerced to uint64_t, it was
getting sign extended, causing us to get FFFFFFFFxxxxxxxx constants all of
the time.

llvm-svn: 15224

glibc 'nan' function because the initializer is not a string.  This breaks when used in a global
initializer.  Try compiling this testcase for example:

%X = global float <some nan value>

llvm-svn: 15223

llvm-svn: 15221

Adjust for new Module.h interface for dependent libraries.
Excise unused backwards compatibility flag.

llvm-svn: 15220

regression bug introduced in release 1.2

llvm-svn: 15219

llvm-svn: 15218