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

[Chris Lattner]

Changes in directory llvm/lib/Transforms/Scalar:

SCCP.cpp updated: 1.132 -> 1.133
---
Log message:

Fix an ugly problem in SCCP.  This fixes Benchmarks/Misc-C++/mandel-text.cpp



---
Diffs of the changes:  (+3 -2)

 SCCP.cpp |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)


Index: llvm/lib/Transforms/Scalar/SCCP.cpp
diff -u llvm/lib/Transforms/Scalar/SCCP.cpp:1.132 llvm/lib/Transforms/Scalar/SCCP.cpp:1.133
--- llvm/lib/Transforms/Scalar/SCCP.cpp:1.132	Thu Sep 28 18:35:21 2006
+++ llvm/lib/Transforms/Scalar/SCCP.cpp	Fri Oct 20 15:19:08 2006
@@ -1032,7 +1032,7 @@
         if (BI->isConditional()) {
           LatticeVal &BCValue = getValueState(BI->getCondition());
           if (BCValue.isUndefined()) {
-            BI->setCondition(ConstantBool::getTrue());
+            BCValue.markOverdefined();
             BranchesResolved = true;
             visit(BI);
           }
@@ -1041,7 +1041,8 @@
         LatticeVal &SCValue = getValueState(SI->getCondition());
         if (SCValue.isUndefined()) {
           const Type *CondTy = SI->getCondition()->getType();
-          SI->setCondition(Constant::getNullValue(CondTy));
+          // Pick and arbitrary direction for the switch to go.
+          SCValue.markOverdefined();
           BranchesResolved = true;
           visit(SI);
         }