[llvm-commits] CVS: llvm/lib/Transforms/Scalar/InstructionCombining.cpp

[Chris Lattner]

Changes in directory llvm/lib/Transforms/Scalar:

InstructionCombining.cpp updated: 1.114 -> 1.115

---
Log message:

Implement InstCombine/2003-08-12-AllocaNonNull.ll


---
Diffs of the changes:

Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.114 llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.115
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.114	Wed Aug 13 00:33:12 2003
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp	Wed Aug 13 00:38:46 2003
@@ -768,9 +768,11 @@
   if (Op0 == Op1)
     return ReplaceInstUsesWith(I, ConstantBool::get(isTrueWhenEqual(I)));
 
-  // setcc <global*>, 0 - Global value addresses are never null!
-  if (isa<GlobalValue>(Op0) && isa<ConstantPointerNull>(Op1))
+  // setcc <global/alloca*>, 0 - Global/Stack value addresses are never null!
+  if (isa<ConstantPointerNull>(Op1) && 
+      (isa<GlobalValue>(Op0) || isa<AllocaInst>(Op0)))
     return ReplaceInstUsesWith(I, ConstantBool::get(!isTrueWhenEqual(I)));
+
 
   // setcc's with boolean values can always be turned into bitwise operations
   if (Ty == Type::BoolTy) {