after legalize.  Just because a constant is legal (e.g. 0.0 in SSE) 
doesn't mean that its negated value is legal (-0.0).  We could make
this stronger by checking to see if the negated constant is actually
legal post negation, but it doesn't seem like a big deal.

llvm-svn: 47591

llvm-svn: 47590

operands into inline asm block.

llvm-svn: 47589

llvm-svn: 47588

llvm-svn: 47587

Added recording of divide-by-zero and divide-by-uninitialized nodes.

llvm-svn: 47586

llvm-svn: 47585

llvm-svn: 47584

Take 2.

llvm-svn: 47583

Patch by Mike Stump!

llvm-svn: 47582

sign of its type in the early exit case.  No testcase, because this
doesn't manifest as a failure.

llvm-svn: 47581

llvm-svn: 47580

This caused the whole body to get dropped from the CFG.

llvm-svn: 47579

llvm-svn: 47578

llvm-svn: 47577

llvm-svn: 47576

pointed out that this isn't correct at -O0.

llvm-svn: 47575

llvm-svn: 47574

llvm-svn: 47573

that aren't VarDecls.

llvm-svn: 47572

and StoreSDNode into LSBaseSDNode.

llvm-svn: 47570

{S,U}MUL_LOHI with an unused high value.

llvm-svn: 47569

failures on OS X in some cases.  (Thank you valgrind.)

llvm-svn: 47568

result into a MUL late in the X86 codegen process. ISD::MUL is
once again Legal on X86, so this is no longer needed. And, the
hack was suboptimal; see PR1874 for details.

llvm-svn: 47567

llvm-svn: 47566

bits VC++ right now.

llvm-svn: 47565

llvm-svn: 47564

llvm-svn: 47563

llvm-svn: 47562

a SignBitIsZero function to simplify a common use case.

llvm-svn: 47561

llvm-svn: 47560

llvm-svn: 47558

All remat'ed loads cannot be folded into two-address code. Not just argument loads. This change doesn't really have any impact on codegen.

llvm-svn: 47557

llvm-svn: 47556

llvm-svn: 47555

of TokenFactor underneath chain (seems to be enough)

llvm-svn: 47554

llvm-svn: 47553

that combines getValueType and MVT::getSizeInBits, since this
occurrs frequently.

llvm-svn: 47552

llvm-svn: 47551

symbolic store: VarDecl's inserted into the sweep may not always bind to
anything; handle this special case just like bindings to uninitialized values.

llvm-svn: 47550