[llvm] r177608 - Use pre-inc, pre-dec when possible.

[Jakub Staszak]

Author: kuba
Date: Wed Mar 20 18:56:19 2013
New Revision: 177608

URL: http://llvm.org/viewvc/llvm-project?rev=177608&view=rev
Log:
Use pre-inc, pre-dec when possible.
They are generally faster (at least not slower) than post-inc, post-dec.

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

Modified: llvm/trunk/include/llvm/ADT/APSInt.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/APSInt.h?rev=177608&r1=177607&r2=177608&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/APSInt.h (original)
+++ llvm/trunk/include/llvm/ADT/APSInt.h Wed Mar 20 18:56:19 2013
@@ -161,11 +161,11 @@ public:
   }
 
   APSInt& operator++() {
-    static_cast<APInt&>(*this)++;
+    ++(static_cast<APInt&>(*this));
     return *this;
   }
   APSInt& operator--() {
-    static_cast<APInt&>(*this)--;
+    --(static_cast<APInt&>(*this));
     return *this;
   }
   APSInt operator++(int) {

Modified: llvm/trunk/lib/IR/Instructions.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Instructions.cpp?rev=177608&r1=177607&r2=177608&view=diff
==============================================================================
--- llvm/trunk/lib/IR/Instructions.cpp (original)
+++ llvm/trunk/lib/IR/Instructions.cpp Wed Mar 20 18:56:19 2013
@@ -3000,8 +3000,8 @@ ICmpInst::makeConstantRange(Predicate pr
   uint32_t BitWidth = C.getBitWidth();
   switch (pred) {
   default: llvm_unreachable("Invalid ICmp opcode to ConstantRange ctor!");
-  case ICmpInst::ICMP_EQ: Upper++; break;
-  case ICmpInst::ICMP_NE: Lower++; break;
+  case ICmpInst::ICMP_EQ: ++Upper; break;
+  case ICmpInst::ICMP_NE: ++Lower; break;
   case ICmpInst::ICMP_ULT:
     Lower = APInt::getMinValue(BitWidth);
     // Check for an empty-set condition.
@@ -3015,25 +3015,25 @@ ICmpInst::makeConstantRange(Predicate pr
       return ConstantRange(BitWidth, /*isFullSet=*/false);
     break;
   case ICmpInst::ICMP_UGT: 
-    Lower++; Upper = APInt::getMinValue(BitWidth);        // Min = Next(Max)
+    ++Lower; Upper = APInt::getMinValue(BitWidth);        // Min = Next(Max)
     // Check for an empty-set condition.
     if (Lower == Upper)
       return ConstantRange(BitWidth, /*isFullSet=*/false);
     break;
   case ICmpInst::ICMP_SGT:
-    Lower++; Upper = APInt::getSignedMinValue(BitWidth);  // Min = Next(Max)
+    ++Lower; Upper = APInt::getSignedMinValue(BitWidth);  // Min = Next(Max)
     // Check for an empty-set condition.
     if (Lower == Upper)
       return ConstantRange(BitWidth, /*isFullSet=*/false);
     break;
   case ICmpInst::ICMP_ULE: 
-    Lower = APInt::getMinValue(BitWidth); Upper++; 
+    Lower = APInt::getMinValue(BitWidth); ++Upper; 
     // Check for a full-set condition.
     if (Lower == Upper)
       return ConstantRange(BitWidth, /*isFullSet=*/true);
     break;
   case ICmpInst::ICMP_SLE: 
-    Lower = APInt::getSignedMinValue(BitWidth); Upper++; 
+    Lower = APInt::getSignedMinValue(BitWidth); ++Upper; 
     // Check for a full-set condition.
     if (Lower == Upper)
       return ConstantRange(BitWidth, /*isFullSet=*/true);

Modified: llvm/trunk/lib/Support/APInt.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/APInt.cpp?rev=177608&r1=177607&r2=177608&view=diff
==============================================================================
--- llvm/trunk/lib/Support/APInt.cpp (original)
+++ llvm/trunk/lib/Support/APInt.cpp Wed Mar 20 18:56:19 2013
@@ -559,12 +559,12 @@ bool APInt::slt(const APInt& RHS) const
   if (lhsNeg) {
     // Sign bit is set so perform two's complement to make it positive
     lhs.flipAllBits();
-    lhs++;
+    ++lhs;
   }
   if (rhsNeg) {
     // Sign bit is set so perform two's complement to make it positive
     rhs.flipAllBits();
-    rhs++;
+    ++rhs;
   }
 
   // Now we have unsigned values to compare so do the comparison if necessary
@@ -2116,7 +2116,7 @@ void APInt::fromString(unsigned numbits,
   }
   // If its negative, put it in two's complement form
   if (isNeg) {
-    (*this)--;
+    --(*this);
     this->flipAllBits();
   }
 }
@@ -2197,7 +2197,7 @@ void APInt::toString(SmallVectorImpl<cha
     // Flip the bits and add one to turn it into the equivalent positive
     // value and put a '-' in the result.
     Tmp.flipAllBits();
-    Tmp++;
+    ++Tmp;
     Str.push_back('-');
   }