Rename getMaximumUnrollFactor -> getMaxInterleaveFactor; also rename option names controlling this variable.

"Unroll" is not the appropriate name for this variable. Clang already uses 
the term "interleave" in pragmas and metadata for this.

Differential Revision: http://reviews.llvm.org/D5066

llvm-svn: 217528
diff --git a/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp b/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
index 7ef1fdb..d2438d3 100644
--- a/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
+++ b/llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
@@ -104,7 +104,7 @@
     return 64;
   }
 
-  unsigned getMaximumUnrollFactor() const override;
+  unsigned getMaxInterleaveFactor() const override;
 
   unsigned getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src) const
       override;
@@ -516,7 +516,7 @@
   return Cost;
 }
 
-unsigned AArch64TTI::getMaximumUnrollFactor() const {
+unsigned AArch64TTI::getMaxInterleaveFactor() const {
   if (ST->isCortexA57() || ST->isCyclone())
     return 4;
   return 2;
diff --git a/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp b/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
index 4635e43..75a556a 100644
--- a/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
@@ -104,7 +104,7 @@
     return 32;
   }
 
-  unsigned getMaximumUnrollFactor() const override {
+  unsigned getMaxInterleaveFactor() const override {
     // These are out of order CPUs:
     if (ST->isCortexA15() || ST->isSwift())
       return 2;
diff --git a/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp b/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
index d3d712c..0cb88c1 100644
--- a/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.cpp
@@ -90,7 +90,7 @@
 
   unsigned getNumberOfRegisters(bool Vector) const override;
   unsigned getRegisterBitWidth(bool Vector) const override;
-  unsigned getMaximumUnrollFactor() const override;
+  unsigned getMaxInterleaveFactor() const override;
   unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty, OperandValueKind,
                                   OperandValueKind, OperandValueProperties,
                                   OperandValueProperties) const override;
@@ -295,7 +295,7 @@
 
 }
 
-unsigned PPCTTI::getMaximumUnrollFactor() const {
+unsigned PPCTTI::getMaxInterleaveFactor() const {
   unsigned Directive = ST->getDarwinDirective();
   // The 440 has no SIMD support, but floating-point instructions
   // have a 5-cycle latency, so unroll by 5x for latency hiding.
diff --git a/llvm/lib/Target/R600/AMDGPUTargetTransformInfo.cpp b/llvm/lib/Target/R600/AMDGPUTargetTransformInfo.cpp
index ba47351..48fb5bf 100644
--- a/llvm/lib/Target/R600/AMDGPUTargetTransformInfo.cpp
+++ b/llvm/lib/Target/R600/AMDGPUTargetTransformInfo.cpp
@@ -81,7 +81,7 @@
 
   unsigned getNumberOfRegisters(bool Vector) const override;
   unsigned getRegisterBitWidth(bool Vector) const override;
-  unsigned getMaximumUnrollFactor() const override;
+  unsigned getMaxInterleaveFactor() const override;
 
   /// @}
 };
@@ -153,7 +153,7 @@
   return 32;
 }
 
-unsigned AMDGPUTTI::getMaximumUnrollFactor() const {
+unsigned AMDGPUTTI::getMaxInterleaveFactor() const {
   // Semi-arbitrary large amount.
   return 64;
 }
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
index cd0336f..e23d1b9 100644
--- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
+++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp
@@ -82,7 +82,7 @@
 
   unsigned getNumberOfRegisters(bool Vector) const override;
   unsigned getRegisterBitWidth(bool Vector) const override;
-  unsigned getMaximumUnrollFactor() const override;
+  unsigned getMaxInterleaveFactor() const override;
   unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty, OperandValueKind,
                                   OperandValueKind, OperandValueProperties,
                                   OperandValueProperties) const override;
@@ -167,7 +167,7 @@
 
 }
 
-unsigned X86TTI::getMaximumUnrollFactor() const {
+unsigned X86TTI::getMaxInterleaveFactor() const {
   if (ST->isAtom())
     return 1;