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Cost Model: Move the 'max unroll factor' variable to the TTI and add initial Cost Model support on ARM.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171928 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2013-01-09 01:15:42 +00:00
parent d700a2f9c5
commit 83be7b0dd3
9 changed files with 89 additions and 7 deletions
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lib/CodeGen/BasicTargetTransformInfo.cpp
+5
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@@ -83,6 +83,7 @@ public:
/// @{
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 @@ unsigned BasicTTI::getNumberOfRegisters(bool Vector) const {
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);