Merge branch 'upstream' into merge_2013_03_18

6 files changed, 59 insertions, 19 deletions

diff --git a/include/llvm/Support/CommandLine.h b/include/llvm/Support/CommandLine.h
index bf7823e..2e84d7b 100644
--- a/include/llvm/Support/CommandLine.h
+++ b/include/llvm/Support/CommandLine.h
@@ -1090,7 +1090,7 @@ public:
 
   // Make sure we initialize the value with the default constructor for the
   // type.
-  opt_storage() : Value(DataType()) {}
+  opt_storage() : Value(DataType()), Default(DataType()) {}
 
   template<class T>
   void setValue(const T &V, bool initial = false) {
diff --git a/include/llvm/Support/DebugLoc.h b/include/llvm/Support/DebugLoc.h
index 3596be8..f35d407 100644
--- a/include/llvm/Support/DebugLoc.h
+++ b/include/llvm/Support/DebugLoc.h
@@ -9,7 +9,7 @@
 //
 // This file defines a number of light weight data structures used
 // to describe and track debug location information.
-// 
+//
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_SUPPORT_DEBUGLOC_H
@@ -19,7 +19,7 @@ namespace llvm {
   template <typename T> struct DenseMapInfo;
   class MDNode;
   class LLVMContext;
-  
+
   /// DebugLoc - Debug location id.  This is carried by Instruction, SDNode,
   /// and MachineInstr to compactly encode file/line/scope information for an
   /// operation.
@@ -46,18 +46,18 @@ namespace llvm {
     /// location, encoded as 24-bits for line and 8 bits for col.  A value of 0
     /// for either means unknown.
     unsigned LineCol;
-    
+
     /// ScopeIdx - This is an opaque ID# for Scope/InlinedAt information,
     /// decoded by LLVMContext.  0 is unknown.
     int ScopeIdx;
   public:
     DebugLoc() : LineCol(0), ScopeIdx(0) {}  // Defaults to unknown.
-    
+
     /// get - Get a new DebugLoc that corresponds to the specified line/col
     /// scope/inline location.
     static DebugLoc get(unsigned Line, unsigned Col,
                         MDNode *Scope, MDNode *InlinedAt = 0);
-    
+
     /// getFromDILocation - Translate the DILocation quad into a DebugLoc.
     static DebugLoc getFromDILocation(MDNode *N);
 
@@ -66,32 +66,32 @@ namespace llvm {
 
     /// isUnknown - Return true if this is an unknown location.
     bool isUnknown() const { return ScopeIdx == 0; }
-    
+
     unsigned getLine() const {
       return (LineCol << 8) >> 8;  // Mask out column.
     }
-    
+
     unsigned getCol() const {
       return LineCol >> 24;
     }
-    
+
     /// getScope - This returns the scope pointer for this DebugLoc, or null if
     /// invalid.
     MDNode *getScope(const LLVMContext &Ctx) const;
-    
+
     /// getInlinedAt - This returns the InlinedAt pointer for this DebugLoc, or
     /// null if invalid or not present.
     MDNode *getInlinedAt(const LLVMContext &Ctx) const;
-    
+
     /// getScopeAndInlinedAt - Return both the Scope and the InlinedAt values.
     void getScopeAndInlinedAt(MDNode *&Scope, MDNode *&IA,
                               const LLVMContext &Ctx) const;
-    
-    
+
+
     /// getAsMDNode - This method converts the compressed DebugLoc node into a
     /// DILocation compatible MDNode.
     MDNode *getAsMDNode(const LLVMContext &Ctx) const;
-    
+
     bool operator==(const DebugLoc &DL) const {
       return LineCol == DL.LineCol && ScopeIdx == DL.ScopeIdx;
     }
diff --git a/include/llvm/Support/ELF.h b/include/llvm/Support/ELF.h
index 8e6b91e..cc9151e 100644
--- a/include/llvm/Support/ELF.h
+++ b/include/llvm/Support/ELF.h
@@ -588,6 +588,8 @@ enum {
 
 // ARM Specific e_flags
 enum {
+  EF_ARM_SOFT_FLOAT =     0x00000200U,
+  EF_ARM_VFP_FLOAT =      0x00000400U,
   EF_ARM_EABI_UNKNOWN =   0x00000000U,
   EF_ARM_EABI_VER1 =      0x01000000U,
   EF_ARM_EABI_VER2 =      0x02000000U,
diff --git a/include/llvm/Support/ErrorOr.h b/include/llvm/Support/ErrorOr.h
index ceec33d..f3ac305 100644
--- a/include/llvm/Support/ErrorOr.h
+++ b/include/llvm/Support/ErrorOr.h
@@ -180,6 +180,16 @@ private:
 public:
   ErrorOr() : IsValid(false) {}
 
+  template <class E>
+  ErrorOr(E ErrorCode, typename enable_if_c<is_error_code_enum<E>::value ||
+                                            is_error_condition_enum<E>::value,
+                                            void *>::type = 0)
+      : HasError(true), IsValid(true) {
+    Error = new ErrorHolderBase;
+    Error->Error = make_error_code(ErrorCode);
+    Error->HasUserData = false;
+  }
+
   ErrorOr(llvm::error_code EC) : HasError(true), IsValid(true) {
     Error = new ErrorHolderBase;
     Error->Error = EC;
@@ -387,6 +397,22 @@ class ErrorOr<void> {
 public:
   ErrorOr() : Error(0, 0) {}
 
+  template <class E>
+  ErrorOr(E ErrorCode, typename enable_if_c<is_error_code_enum<E>::value ||
+                                            is_error_condition_enum<E>::value,
+                                            void *> ::type = 0)
+      : Error(0, 0) {
+    error_code EC = make_error_code(ErrorCode);
+    if (EC == errc::success) {
+      Error.setInt(1);
+      return;
+    }
+    ErrorHolderBase *EHB = new ErrorHolderBase;
+    EHB->Error = EC;
+    EHB->HasUserData = false;
+    Error.setPointer(EHB);
+  }
+
   ErrorOr(llvm::error_code EC) : Error(0, 0) {
     if (EC == errc::success) {
       Error.setInt(1);
diff --git a/include/llvm/Support/FileSystem.h b/include/llvm/Support/FileSystem.h
index bae3a5a..ffa6427 100644
--- a/include/llvm/Support/FileSystem.h
+++ b/include/llvm/Support/FileSystem.h
@@ -602,7 +602,7 @@ private:
   void *FileMappingHandle;
 #endif
 
-  error_code init(int FD, uint64_t Offset);
+  error_code init(int FD, bool CloseFD, uint64_t Offset);
 
 public:
   typedef char char_type;
@@ -633,8 +633,10 @@ public:
                      error_code &ec);
 
   /// \param fd An open file descriptor to map. mapped_file_region takes
-  ///           ownership. It must have been opended in the correct mode.
+  ///   ownership if closefd is true. It must have been opended in the correct
+  ///   mode.
   mapped_file_region(int fd,
+                     bool closefd,
                      mapmode mode,
                      uint64_t length,
                      uint64_t offset,
diff --git a/include/llvm/Support/MathExtras.h b/include/llvm/Support/MathExtras.h
index 214bb6c..d6ae58d 100644
--- a/include/llvm/Support/MathExtras.h
+++ b/include/llvm/Support/MathExtras.h
@@ -258,7 +258,10 @@ inline unsigned CountTrailingZeros_32(uint32_t Value) {
     4, 7, 17, 0, 25, 22, 31, 15, 29, 10, 12, 6, 0, 21, 14, 9,
     5, 20, 8, 19, 18
   };
-  return Mod37BitPosition[(-Value & Value) % 37];
+  // Replace "-Value" by "1+~Value" in the following commented code to avoid 
+  // MSVC warning C4146
+  //    return Mod37BitPosition[(-Value & Value) % 37];
+  return Mod37BitPosition[((1 + ~Value) & Value) % 37];
 #endif
 }
 
@@ -285,7 +288,10 @@ inline unsigned CountTrailingZeros_64(uint64_t Value) {
     29, 50, 43, 46, 31, 37, 21, 57, 52, 8, 26, 49, 45, 36, 56,
     7, 48, 35, 6, 34, 33, 0
   };
-  return Mod67Position[(-Value & Value) % 67];
+  // Replace "-Value" by "1+~Value" in the following commented code to avoid 
+  // MSVC warning C4146
+  //    return Mod67Position[(-Value & Value) % 67];
+  return Mod67Position[((1 + ~Value) & Value) % 67];
 #endif
 }
 
@@ -420,7 +426,11 @@ int IsInf(double d);
 /// alignment that may be assumed after adding the two together.
 inline uint64_t MinAlign(uint64_t A, uint64_t B) {
   // The largest power of 2 that divides both A and B.
-  return (A | B) & -(A | B);
+  //
+  // Replace "-Value" by "1+~Value" in the following commented code to avoid 
+  // MSVC warning C4146
+  //    return (A | B) & -(A | B);
+  return (A | B) & (1 + ~(A | B));
 }
 
 /// NextPowerOf2 - Returns the next power of two (in 64-bits)