From 9fa038dc21e966dceb23f9410351e863e3ce1114 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Tue, 30 Jan 2007 23:13:49 +0000 Subject: Change constant folding APIs to take an optional TargetData, and change ConstantFoldInstOperands/ConstantFoldCall to take a pointer to an array of operands + size, instead of an std::vector. In some cases, switch to using a SmallVector instead of a vector. This allows us to get rid of some special case gross code that was there to avoid the cost of constructing a vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33670 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Utils/CloneFunction.cpp | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) (limited to 'lib/Transforms/Utils/CloneFunction.cpp') diff --git a/lib/Transforms/Utils/CloneFunction.cpp b/lib/Transforms/Utils/CloneFunction.cpp index 753d657d58..f47bf1b7bf 100644 --- a/lib/Transforms/Utils/CloneFunction.cpp +++ b/lib/Transforms/Utils/CloneFunction.cpp @@ -21,6 +21,7 @@ #include "llvm/Support/CFG.h" #include "ValueMapper.h" #include "llvm/Transforms/Utils/Local.h" +#include "llvm/ADT/SmallVector.h" using namespace llvm; // CloneBasicBlock - See comments in Cloning.h @@ -281,24 +282,7 @@ void PruningFunctionCloner::CloneBlock(const BasicBlock *BB) { /// mapping its operands through ValueMap if they are available. Constant *PruningFunctionCloner:: ConstantFoldMappedInstruction(const Instruction *I) { - if (isa(I)) { - if (Constant *Op0 = dyn_cast_or_null(MapValue(I->getOperand(0), - ValueMap))) - if (Constant *Op1 = dyn_cast_or_null(MapValue(I->getOperand(1), - ValueMap))) - return ConstantExpr::getCompare(cast(I)->getPredicate(), Op0, - Op1); - return 0; - } else if (isa(I) || isa(I)) { - if (Constant *Op0 = dyn_cast_or_null(MapValue(I->getOperand(0), - ValueMap))) - if (Constant *Op1 = dyn_cast_or_null(MapValue(I->getOperand(1), - ValueMap))) - return ConstantExpr::get(I->getOpcode(), Op0, Op1); - return 0; - } - - std::vector Ops; + SmallVector Ops; for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) if (Constant *Op = dyn_cast_or_null(MapValue(I->getOperand(i), ValueMap))) @@ -306,7 +290,7 @@ ConstantFoldMappedInstruction(const Instruction *I) { else return 0; // All operands not constant! - return ConstantFoldInstOperands(I, Ops); + return ConstantFoldInstOperands(I, &Ops[0], Ops.size()); } /// CloneAndPruneFunctionInto - This works exactly like CloneFunctionInto, -- cgit v1.2.3