Cost Model: Move the 'max unroll factor' variable to the TTI and add initial Cost Model support on ARM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171928 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/BasicTargetTransformInfo.cpp b/lib/CodeGen/BasicTargetTransformInfo.cpp
index c27e081..2f3ac9a 100644
--- a/lib/CodeGen/BasicTargetTransformInfo.cpp
+++ b/lib/CodeGen/BasicTargetTransformInfo.cpp
@@ -83,6 +83,7 @@
/// @{
virtual unsigned getNumberOfRegisters(bool Vector) const;
+ virtual unsigned getMaximumUnrollFactor() const;
virtual unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty) const;
virtual unsigned getShuffleCost(ShuffleKind Kind, Type *Tp,
int Index, Type *SubTp) const;
@@ -182,6 +183,10 @@
return 1;
}
+unsigned BasicTTI::getMaximumUnrollFactor() const {
+ return 1;
+}
+
unsigned BasicTTI::getArithmeticInstrCost(unsigned Opcode, Type *Ty) const {
// Check if any of the operands are vector operands.
int ISD = TLI->InstructionOpcodeToISD(Opcode);