of movzbw here.

llvm-svn: 54224

subreg form on x86-64, to avoid the problem with x86-32
having GPRs that don't have 8-bit subregs.

Also, change several 16-bit instructions to use 
equivalent 32-bit instructions. These have a smaller
encoding and avoid partial-register updates.

llvm-svn: 54223

llvm-svn: 54222

llvm-svn: 54220

llvm-svn: 54219

llvm-svn: 54218

llvm-svn: 54215

llvm-svn: 54214

llvm-svn: 54213

llvm-svn: 54212

instead of mapping the decl to a bitcast of the global to the correct
type.
 
 - GetAddrOf{Function,GlobalVar} introduce the bitcast on every use now.

 - This solves a problem where a dangling pointer could be introduced
   by the RAUW done when replacing a forward or tentative
   definition. See testcase for more details.

 - Fixes <rdar://problem/6108358>

llvm-svn: 54211

llvm-svn: 54210

llvm-svn: 54209

to different address spaces.  This alters the naming scheme for those
intrinsics, e.g., atomic.load.add.i32 => atomic.load.add.i32.p0i32

llvm-svn: 54195

time applying to the implicit comparison in smin expressions. The 
correct way to transform an inequality into the opposite 
inequality, either signed or unsigned, is with a not expression.

I looked through the SCEV code, and I don't think there are any more 
occurrences of this issue.

llvm-svn: 54194

llvm-svn: 54186

When merging live intervals, we also need to merge in any live ranges that are inputs to two-address instructions
that themselves define a range we already care about.

llvm-svn: 54185

SGT exit condition.  Essentially, the correct way to flip an inequality 
in 2's complement is the not operator, not the negation operator.  
That said, the difference only affects cases involving INT_MIN.

Also, enhance the pre-test search logic to be a bit smarter about 
inequalities flipped with a not operator, so it can eliminate the smax 
from the iteration count for simple loops.

llvm-svn: 54184

llvm-svn: 54181

 - No (intended) functionality change.

 - Primary purpose is to clearly separate (lazy) construction of
   globals that are a forward declaration or tentative definition from
   those that are the final definition.

 - Lazy construction is now encapsulated in
   GetAddrOf{Function,GlobalVar} while final definitions are
   constructed in EmitGlobal{Function,Var}Definition.
 
 - External interface for dealing with globals is now limited to
   EmitGlobal and GetAddrOf{Function,GlobalVar}.

 - Also updated helper functions dealing with statics, annotations,
   and ctors to be private.

llvm-svn: 54179

When merging a PHI operand's live interval into the PHI's live interval, we need to merge over all liveranges in
the operand's interval that share the relevant value number, not just the range that immediately precedes the PHI.

llvm-svn: 54174

llvm-svn: 54173

to be marked invalid regardless of whether it is
a debug, an exception handling or (hopefully) a
GC label.

llvm-svn: 54172

llvm-svn: 54169

llvm-svn: 54168

llvm-svn: 54167

be run when installing on sparc sun.  Set the
mime type to text/x-sh while there.

llvm-svn: 54165

The CellSPU codegen is broken, but needs to be fixed before we can
put this back in.

llvm-svn: 54164

<rdar://problem/6108127> clang ObjC rewriter: no translation of id <proto>

llvm-svn: 54163

 - Killed useless CodeGenModule::EmitGlobalVarDeclarator, instead just
   recurse on any ScopedDecl.
 - Fix for <rdar://problem/6093838>

llvm-svn: 54162

CodeGen & Clang work coming next.

llvm-svn: 54161

partially unroll a loop when fully unrolling would not fit under the threshold.

Patch by Mikael Lepistö.

llvm-svn: 54160

that says "unconditional loads from this argument are safe", we now keep track
of the safety per set of indices from which loads happen. This prevents
ArgPromotion from promoting loads that aren't really valid. As an added effect,
this will now disregard the the type of the indices passed to a GEP, so
"load GEP %A, i32 1" and "load GEP %A, i64 1" will result in a single argument,
not two.

This fixes PR2598, for which a testcase has been added as well.

llvm-svn: 54159

just it's name, which is often empty. Also remove a newline from the output
that wasn't really needed.

llvm-svn: 54158

llvm-svn: 54157

Fix for PR2578. Do not split off a block whose size is less than FreeRangeHeader::getMinBlockSize(). Patch by Damien.

llvm-svn: 54152

llvm-svn: 54151

llvm-svn: 54148

which is represented in codegen as an 'and' operation. This matches them
with movz instructions, instead of leaving them to be matched by and
instructions with an immediate field.

llvm-svn: 54147

a new ilist_node class, and remove them. Unlike alist_node,
ilist_node doesn't attempt to manage storage itself, so it avoids
the associated problems, including being opaque in gdb.

Adjust the Recycler class so that it doesn't depend on alist_node.
Also, change it to use explicit Size and Align parameters, allowing
it to work when the largest-sized node doesn't have the greatest
alignment requirement.

Change MachineInstr's MachineMemOperand list from a pool-backed
alist to a std::list for now.

llvm-svn: 54146