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: 54414

 - Change hardcoded assembly instructions to a use of 'opt' (still
   waiting for someone to yell at me for this).

 - Add some cases to cover behavior fixed by previous commit.

llvm-svn: 54413

While this is a safe rewriter fix, there is still a need for some discussion (see report for more info).

llvm-svn: 54412

llvm-svn: 54411

When serializing DeclStmt, encode a bit indicating whether or not the DeclStmt owns the Decl.  This is an interim solution.

llvm-svn: 54410

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

 - PR2643

llvm-svn: 54397

matters, the result is undefined anyway.

llvm-svn: 54396

type.

 - This generates somewhat less optimal code than before but this is
   not hard to rectify once stable (at the cost of slightly more
   complex code).

 - This currently always uses little-endian ordering of the bitfield. 

 - This breaks the CodeGen/bitfield.c test because it was grepping for
   hard-coded assembly instructions. Will fix once a better test case
   is constructed (hard to do without execution).

 - This fixes SingleSource/UnitTests/2006-01-23-InitializedBitField.c
   and Regression/C/PR1386.c from the test suite.

 - <rdar://problem/6085090>, <rdar://problem/6094169>

llvm-svn: 54395

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

llvm-svn: 54394

llvm-svn: 54393

 - Changed EmitSub to work on all cases (arithmetic, ptr - int, ptr -
   ptr) so that implementation matches that of other operators.

 - Modify EmitCompoundAssign to compute and perform the appropriate
   casts of left, right, and result types for the assorted pointer
   arithmetic cases.

 - Fix EmitSub (ptr - int) case to negate the rhs *after*
   extension. This is critical when the rhs is unsigned (and needs
   extension).

 - This fixes cfrac.

 - <rdr://6115726>

llvm-svn: 54392

llvm-svn: 54389

scimark2 on Darwin.

 - Added Sema support for asm-label on variables, which I forgot before.

 - Update CodeGen to use GlobalDeclMap to determine if static Decls
   require emission (instead of LLVM module name lookup). Important
   since the Decl name and the LLVM module name can differ.

 - <rdar://problem/6116729>

llvm-svn: 54388

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

llvm-svn: 54383

  having multiple bindings from all the possible decls which
  conceptually map to the same global).

 - This eliminates CodeGen depending on the LLVM module for name
   lookup.

 - This also eliminates the need for ReplaceMapValuesWith (hurrah).

 - This handles lookups for FunctionDecls correctly in the presence of
   aliases, this was previously broken.

 - WIP: Can still clean up & unify variable and function emission.

llvm-svn: 54382

llvm-svn: 54381

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

llvm-svn: 54373

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

llvm-svn: 54372

llvm-svn: 54371

llvm-svn: 54369