[llvm-commits] CVS: llvm/lib/VMCore/ConstantFolding.cpp

Jeff Cohen jeffc at jolt-lang.org
Mon May 2 20:13:12 PDT 2005



Changes in directory llvm/lib/VMCore:

ConstantFolding.cpp updated: 1.75 -> 1.76
---
Log message:

Use ANSI-approved way of getting the value infinity (otherwise VC++ won't compile it)

---
Diffs of the changes:  (+4 -3)

 ConstantFolding.cpp |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)


Index: llvm/lib/VMCore/ConstantFolding.cpp
diff -u llvm/lib/VMCore/ConstantFolding.cpp:1.75 llvm/lib/VMCore/ConstantFolding.cpp:1.76
--- llvm/lib/VMCore/ConstantFolding.cpp:1.75	Mon May  2 16:25:47 2005
+++ llvm/lib/VMCore/ConstantFolding.cpp	Mon May  2 22:13:01 2005
@@ -24,6 +24,7 @@
 #include "llvm/DerivedTypes.h"
 #include "llvm/Function.h"
 #include "llvm/Support/GetElementPtrTypeIterator.h"
+#include <limits>
 #include <cmath>
 using namespace llvm;
 
@@ -471,9 +472,9 @@
     return ConstantClass::get(*Ty, Result);
   }
   static Constant *Div(const ConstantClass *V1, const ConstantClass *V2) {
-    if (V2->isExactlyValue(0.0)) return ConstantClass::get(*Ty, INFINITY);
-    if (V2->isExactlyValue(-0.0)) return ConstantClass::get(*Ty, -INFINITY);
-    if (V2->isNullValue()) return 0;
+    BuiltinType inf = std::numeric_limits<BuiltinType>::infinity();
+    if (V2->isExactlyValue(0.0)) return ConstantClass::get(*Ty, inf);
+    if (V2->isExactlyValue(-0.0)) return ConstantClass::get(*Ty, -inf);
     BuiltinType R = (BuiltinType)V1->getValue() / (BuiltinType)V2->getValue();
     return ConstantClass::get(*Ty, R);
   }






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