[llvm] r300577 - [APInt] Inline the single word case of lshrInPlace similar to what we do for <<=.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Tue Apr 18 14:13:27 2017
New Revision: 300577

URL: http://llvm.org/viewvc/llvm-project?rev=300577&view=rev
Log:
[APInt] Inline the single word case of lshrInPlace similar to what we do for <<=.

Modified:
    llvm/trunk/include/llvm/ADT/APInt.h
    llvm/trunk/lib/Support/APInt.cpp

Modified: llvm/trunk/include/llvm/ADT/APInt.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/APInt.h?rev=300577&r1=300576&r2=300577&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/APInt.h (original)
+++ llvm/trunk/include/llvm/ADT/APInt.h Tue Apr 18 14:13:27 2017
@@ -191,6 +191,9 @@ private:
   /// out-of-line slow case for shl
   void shlSlowCase(unsigned ShiftAmt);
 
+  /// out-of-line slow case for lshr.
+  void lshrSlowCase(unsigned ShiftAmt);
+
   /// out-of-line slow case for operator=
   APInt &AssignSlowCase(const APInt &RHS);
 
@@ -889,7 +892,16 @@ public:
   }
 
   /// Logical right-shift this APInt by ShiftAmt in place.
-  void lshrInPlace(unsigned ShiftAmt);
+  void lshrInPlace(unsigned ShiftAmt) {
+    if (isSingleWord()) {
+      if (ShiftAmt >= BitWidth)
+        VAL = 0;
+      else
+        VAL >>= ShiftAmt;
+      return;
+    }
+    lshrSlowCase(ShiftAmt);
+  }
 
   /// \brief Left-shift function.
   ///

Modified: llvm/trunk/lib/Support/APInt.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/APInt.cpp?rev=300577&r1=300576&r2=300577&view=diff
==============================================================================
--- llvm/trunk/lib/Support/APInt.cpp (original)
+++ llvm/trunk/lib/Support/APInt.cpp Tue Apr 18 14:13:27 2017
@@ -1140,15 +1140,7 @@ void APInt::lshrInPlace(const APInt &shi
 
 /// Logical right-shift this APInt by shiftAmt.
 /// @brief Logical right-shift function.
-void APInt::lshrInPlace(unsigned ShiftAmt) {
-  if (isSingleWord()) {
-    if (ShiftAmt >= BitWidth)
-      VAL = 0;
-    else
-      VAL >>= ShiftAmt;
-    return;
-  }
-
+void APInt::lshrSlowCase(unsigned ShiftAmt) {
   tcShiftRight(pVal, getNumWords(), ShiftAmt);
 }