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

[Chris Lattner]

Changes in directory llvm/lib/Transforms/Scalar:

SCCP.cpp updated: 1.157 -> 1.158
---
Log message:

eliminate a malloc/free for (almost) every GEP processed.  This speeds up 
IPSCCP 3.3% on kimwitu.


---
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:1.157 llvm/lib/Transforms/Scalar/SCCP.cpp:1.158
--- llvm/lib/Transforms/Scalar/SCCP.cpp:1.157	Fri Feb  2 14:38:30 2007
+++ llvm/lib/Transforms/Scalar/SCCP.cpp	Fri Feb  2 14:51:48 2007
@@ -968,7 +968,7 @@
   LatticeVal &IV = ValueState[&I];
   if (IV.isOverdefined()) return;
 
-  std::vector<Constant*> Operands;
+  SmallVector<Constant*, 8> Operands;
   Operands.reserve(I.getNumOperands());
 
   for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) {
@@ -986,7 +986,8 @@
   Constant *Ptr = Operands[0];
   Operands.erase(Operands.begin());  // Erase the pointer from idx list...
 
-  markConstant(IV, &I, ConstantExpr::getGetElementPtr(Ptr, Operands));
+  markConstant(IV, &I, ConstantExpr::getGetElementPtr(Ptr, &Operands[0],
+                                                      Operands.size()));
 }
 
 void SCCPSolver::visitStoreInst(Instruction &SI) {