For PR950:

This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31063 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 5 deletions

diff --git a/lib/Transforms/Utils/LowerSwitch.cpp b/lib/Transforms/Utils/LowerSwitch.cpp
index 12a32f19cb..724499d1ba 100644
--- a/lib/Transforms/Utils/LowerSwitch.cpp
+++ b/lib/Transforms/Utils/LowerSwitch.cpp
@@ -60,11 +60,12 @@ namespace {
   struct CaseCmp {
     bool operator () (const LowerSwitch::Case& C1,
                       const LowerSwitch::Case& C2) {
-      if (const ConstantUInt* U1 = dyn_cast<const ConstantUInt>(C1.first))
-        return U1->getValue() < cast<const ConstantUInt>(C2.first)->getValue();
 
-      const ConstantSInt* S1 = dyn_cast<const ConstantSInt>(C1.first);
-      return S1->getValue() < cast<const ConstantSInt>(C2.first)->getValue();
+      const ConstantInt* CI1 = cast<const ConstantInt>(C1.first);
+      const ConstantInt* CI2 = cast<const ConstantInt>(C2.first);
+      if (CI1->getType()->isUnsigned()) 
+        return CI1->getZExtValue() < CI2->getZExtValue();
+      return CI1->getSExtValue() < CI2->getSExtValue();
     }
   };
 
@@ -129,7 +130,7 @@ BasicBlock* LowerSwitch::switchConvert(CaseItr Begin, CaseItr End,
 
   Case& Pivot = *(Begin + Mid);
   DEBUG(std::cerr << "Pivot ==> "
-                  << (int64_t)cast<ConstantInt>(Pivot.first)->getRawValue()
+                  << cast<ConstantInt>(Pivot.first)->getSExtValue()
                   << "\n");
 
   BasicBlock* LBranch = switchConvert(LHS.begin(), LHS.end(), Val,