llvm-svn: 54422

llvm-svn: 54421

llvm-svn: 54420

this time using MOV32to32_ and MOV16to16_. Thanks to Evan for
suggesting this.

llvm-svn: 54418

when it meant to be emitting undef indices.

llvm-svn: 54417

llvm-svn: 54416

Fix PR2355: bug in ChangeCompareStride. When the loop termination compare is the only use of its iv stride, the stride can be eliminated by moving it to another stride. If the scale is negative, swap the predicate instead of using a inverse predicate.

llvm-svn: 54415

llvm-svn: 54411

llvm-svn: 54409

llvm-svn: 54408

Added fp register clobbering during calls.
Added AsmPrinter support for "fmask", a bitmask that indicates where on the 
stack the fp callee saved registers are.

Fixed the stack frame layout for Mips, now the callee saved regs 
are in the right stack location (a little documentation about how this
stack frame must look like is present in MipsRegisterInfo.cpp).
This was done using the method MipsRegisterInfo::adjustMipsStackFrame
To be more clear, these are examples of what is solves :  

1) FP and RA are also callee saved, and despite they aren't in CSI they 
   must be saved before the fp callee saved registers. 
2) The ABI requires that local varibles are allocated before the callee 
   saved register area, the opposite behavior from the default allocation.
3) CPU and FPU saved register area must be aligned independent of each
   other.

llvm-svn: 54403

llvm-svn: 54400

llvm-svn: 54398

matters, the result is undefined anyway.

llvm-svn: 54396

tracking down that this was breaking llvm-gcc bootstrap on Linux.

llvm-svn: 54394

llvm-svn: 54389

llvm-svn: 54386

warning. There wasn't actually a problem here, because the contents of
the string are known.

llvm-svn: 54385

llvm-svn: 54384

instead of having it call getIterationCount again.

llvm-svn: 54380

llvm-svn: 54379

llvm-svn: 54378

llvm-svn: 54377

llvm-svn: 54376

llvm-svn: 54375

llvm-svn: 54374

looks bogus. Please see PR2629 for details on why this is breaking things.

llvm-svn: 54372

llvm-svn: 54371

llvm-svn: 54369

llvm-svn: 54362

llvm-svn: 54361

llvm-svn: 54360

that couldn't be updated.

llvm-svn: 54359

llvm-svn: 54358

llvm-svn: 54357

llvm-svn: 54356

llvm-svn: 54355

llvm-svn: 54354

llvm-svn: 54351

llvm-svn: 54350