Update comments to make it clear that the function alignment is the Log2 of the

bytes and not bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74624 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/MachineFunction.h

@@ -151,11 +151,11 @@ public:
   MachineConstantPool *getConstantPool() { return ConstantPool; }
   const MachineConstantPool *getConstantPool() const { return ConstantPool; }
 
-  /// getAlignment - Return the alignment of the function.
+  /// getAlignment - Return the alignment (log2, not bytes) of the function.
   ///
   unsigned getAlignment() const { return Alignment; }
 
-  /// setAlignment - Set the alignment of the function.
+  /// setAlignment - Set the alignment (log2, not bytes) of the function.
   ///
   void setAlignment(unsigned A) { Alignment = A; }
 

include/llvm/Target/TargetLowering.h

@@ -736,7 +736,7 @@ public:
   /// PIC relocation models.
   virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
 
-  /// getFunctionAlignment - Return the alignment of this function.
+  /// getFunctionAlignment - Return the Log2 alignment of this function.
   virtual unsigned getFunctionAlignment(const Function *) const = 0;
 
   //===--------------------------------------------------------------------===//

lib/Target/ARM/ARMISelLowering.cpp

@@ -455,7 +455,7 @@ const char *ARMTargetLowering::getTargetNodeName(unsigned Opcode) const {
   }
 }
 
-/// getFunctionAlignment - Return the alignment of this function.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned ARMTargetLowering::getFunctionAlignment(const Function *F) const {
   return getTargetMachine().getSubtarget<ARMSubtarget>().isThumb() ? 1 : 2;
 }

lib/Target/ARM/ARMISelLowering.h

@@ -197,7 +197,7 @@ namespace llvm {
       return Subtarget;
     }
 
-    /// getFunctionAlignment - Return the alignment of this function.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
 
   private:

lib/Target/Alpha/AlphaISelLowering.cpp

@@ -181,7 +181,7 @@ const char *AlphaTargetLowering::getTargetNodeName(unsigned Opcode) const {
   }
 }
 
-/// getFunctionAlignment - Return the function alignment.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned AlphaTargetLowering::getFunctionAlignment(const Function *F) const {
   return 4;
 }

lib/Target/Alpha/AlphaISelLowering.h

@@ -103,7 +103,7 @@ namespace llvm {
 
     virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
 
-    /// getFunctionAlignment - Return the function alignment.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
 
   private:

lib/Target/CellSPU/SPUISelLowering.cpp

@@ -481,7 +481,7 @@ SPUTargetLowering::getTargetNodeName(unsigned Opcode) const
   return ((i != node_names.end()) ? i->second : 0);
 }
 
-/// getFunctionAlignment - Return the function alignment.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned SPUTargetLowering::getFunctionAlignment(const Function *) const {
   return 3;
 }

lib/Target/CellSPU/SPUISelLowering.h

@@ -149,7 +149,7 @@ namespace llvm {
 
     virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
 
-    /// getFunctionAlignment - Return the function alignment.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
   };
 }

lib/Target/IA64/IA64ISelLowering.cpp

@@ -148,7 +148,7 @@ MVT IA64TargetLowering::getSetCCResultType(MVT VT) const {
   return MVT::i1;
 }
 
-/// getFunctionAlignment - Return the function alignment.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned IA64TargetLowering::getFunctionAlignment(const Function *) const {
   return 5;
 }

lib/Target/IA64/IA64ISelLowering.h

@@ -70,7 +70,7 @@ namespace llvm {
     /// (currently, only "ret void")
     virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
     
-    /// getFunctionAlignment - Return the function alignment.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
   };
 }

lib/Target/MSP430/MSP430ISelLowering.cpp

@@ -127,7 +127,7 @@ SDValue MSP430TargetLowering::LowerOperation(SDValue Op, SelectionDAG &DAG) {
   }
 }
 
-/// getFunctionAlignment - Return the alignment of this function.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned MSP430TargetLowering::getFunctionAlignment(const Function *F) const {
   return F->hasFnAttr(Attribute::OptimizeForSize) ? 1 : 4;
 }

lib/Target/MSP430/MSP430ISelLowering.h

@@ -74,7 +74,7 @@ namespace llvm {
     /// DAG node.
     virtual const char *getTargetNodeName(unsigned Opcode) const;
 
-    /// getFunctionAlignment - Return the alignment of this function.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
 
     SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);

lib/Target/Mips/MipsISelLowering.cpp

@@ -158,7 +158,7 @@ MVT MipsTargetLowering::getSetCCResultType(MVT VT) const {
   return MVT::i32;
 }
 
-/// getFunctionAlignment - Return the function alignment.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned MipsTargetLowering::getFunctionAlignment(const Function *) const {
   return 2;
 }

lib/Target/Mips/MipsISelLowering.h

@@ -84,7 +84,7 @@ namespace llvm {
     /// getSetCCResultType - get the ISD::SETCC result ValueType
     MVT getSetCCResultType(MVT VT) const;
 
-    /// getFunctionAlignment - Return the function alignment.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
   private:
     // Subtarget Info

lib/Target/PIC16/PIC16ISelLowering.h

@@ -145,7 +145,7 @@ namespace llvm {
     unsigned GetTmpSize() { return TmpSize; }
     void SetTmpSize(unsigned Size) { TmpSize = Size; }
 
-    /// getFunctionAlignment - Return the function alignment.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *) const {
       // FIXME: The function never seems to be aligned.
       return 1;

lib/Target/PowerPC/PPCISelLowering.cpp

@@ -432,7 +432,7 @@ MVT PPCTargetLowering::getSetCCResultType(MVT VT) const {
   return MVT::i32;
 }
 
-/// getFunctionAlignment - Return the function alignment.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned PPCTargetLowering::getFunctionAlignment(const Function *F) const {
   if (getTargetMachine().getSubtarget<PPCSubtarget>().isDarwin())
     return F->hasFnAttr(Attribute::OptimizeForSize) ? 2 : 4;

lib/Target/PowerPC/PPCISelLowering.h

@@ -337,7 +337,7 @@ namespace llvm {
 
     virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
 
-    /// getFunctionAlignment - Return the function alignment.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
 
   private:

lib/Target/Sparc/SparcISelLowering.cpp

@@ -1048,7 +1048,7 @@ SparcTargetLowering::isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const {
   return false;
 }
 
-/// getFunctionAlignment - Return the function alignment.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned SparcTargetLowering::getFunctionAlignment(const Function *) const {
   return 4;
 }

lib/Target/Sparc/SparcISelLowering.h

@@ -74,7 +74,7 @@ namespace llvm {
 
     virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
 
-    /// getFunctionAlignment - Return the function alignment.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
   };
 } // end namespace llvm

lib/Target/X86/X86ISelLowering.cpp

@@ -1027,7 +1027,7 @@ SDValue X86TargetLowering::getPICJumpTableRelocBase(SDValue Table,
   return Table;
 }
 
-/// getFunctionAlignment - Return the alignment of this function.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned X86TargetLowering::getFunctionAlignment(const Function *F) const {
   return F->hasFnAttr(Attribute::OptimizeForSize) ? 1 : 4;
 }

lib/Target/X86/X86ISelLowering.h

@@ -534,7 +534,7 @@ namespace llvm {
 #endif
                    );
 
-    /// getFunctionAlignment - Return the alignment of this function.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
 
   private:

lib/Target/XCore/XCoreISelLowering.cpp

@@ -187,7 +187,7 @@ void XCoreTargetLowering::ReplaceNodeResults(SDNode *N,
   }
 }
 
-/// getFunctionAlignment - Return the alignment of this function.
+/// getFunctionAlignment - Return the Log2 alignment of this function.
 unsigned XCoreTargetLowering::
 getFunctionAlignment(const Function *) const {
   return 1;

lib/Target/XCore/XCoreISelLowering.h

@@ -84,7 +84,7 @@ namespace llvm {
     virtual bool isLegalAddressingMode(const AddrMode &AM,
                                        const Type *Ty) const;
 
-    /// getFunctionAlignment - Return the alignment of this function.
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
     virtual unsigned getFunctionAlignment(const Function *F) const;
 
   private: