[TargetTransformInfo] Refactor and improve getScalarizationOverhead()

Refactoring to remove duplications of this method.

New method getOperandsScalarizationOverhead() that looks at the present unique
operands and add extract costs for them. Old behaviour was to just add extract
costs for one operand of the type always, which still happens in
getArithmeticInstrCost() if no operands are provided by the caller.

This is a good start of improving on this, but there are more places
that can be improved by using getOperandsScalarizationOverhead().

Review: Hal Finkel
https://reviews.llvm.org/D29017

llvm-svn: 293155

1 files changed, 0 insertions, 2 deletions

diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.h b/llvm/lib/Target/X86/X86TargetTransformInfo.h
index ecaaf951cff..63a1493002f 100644
--- a/llvm/lib/Target/X86/X86TargetTransformInfo.h
+++ b/llvm/lib/Target/X86/X86TargetTransformInfo.h
@@ -33,8 +33,6 @@ class X86TTIImpl : public BasicTTIImplBase<X86TTIImpl> {
   const X86Subtarget *ST;
   const X86TargetLowering *TLI;
 
-  int getScalarizationOverhead(Type *Ty, bool Insert, bool Extract);
-
   const X86Subtarget *getST() const { return ST; }
   const X86TargetLowering *getTLI() const { return TLI; }