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-rw-r--r--include/llvm/Constants.h13
-rw-r--r--lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp10
-rw-r--r--lib/Transforms/Scalar/PredicateSimplifier.cpp31
-rw-r--r--lib/VMCore/Constants.cpp22
-rw-r--r--lib/VMCore/LLVMContext.cpp8
-rw-r--r--lib/VMCore/LLVMContextImpl.h21
6 files changed, 49 insertions, 56 deletions
diff --git a/include/llvm/Constants.h b/include/llvm/Constants.h
index 487dd67..8106d91 100644
--- a/include/llvm/Constants.h
+++ b/include/llvm/Constants.h
@@ -93,16 +93,6 @@ public:
return Val == V;
}
- /// getTrue/getFalse - Return the singleton true/false values.
- static inline ConstantInt *getTrue() {
- if (TheTrueVal) return TheTrueVal;
- return CreateTrueFalseVals(true);
- }
- static inline ConstantInt *getFalse() {
- if (TheFalseVal) return TheFalseVal;
- return CreateTrueFalseVals(false);
- }
-
/// getType - Specialize the getType() method to always return an IntegerType,
/// which reduces the amount of casting needed in parts of the compiler.
///
@@ -200,9 +190,6 @@ public:
static bool classof(const Value *V) {
return V->getValueID() == ConstantIntVal;
}
- static void ResetTrueFalse() { TheTrueVal = TheFalseVal = 0; }
-private:
- static ConstantInt *CreateTrueFalseVals(bool WhichOne);
};
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
index 3fa6047..0a7b105 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
@@ -1149,7 +1149,7 @@ SelectionDAGLowering::EmitBranchForMergedCondition(Value *Cond,
}
// Create a CaseBlock record representing this branch.
- CaseBlock CB(ISD::SETEQ, Cond, ConstantInt::getTrue(),
+ CaseBlock CB(ISD::SETEQ, Cond, DAG.getContext()->getConstantIntTrue(),
NULL, TBB, FBB, CurBB);
SwitchCases.push_back(CB);
}
@@ -1304,7 +1304,7 @@ void SelectionDAGLowering::visitBr(BranchInst &I) {
}
// Create a CaseBlock record representing this branch.
- CaseBlock CB(ISD::SETEQ, CondVal, ConstantInt::getTrue(),
+ CaseBlock CB(ISD::SETEQ, CondVal, DAG.getContext()->getConstantIntTrue(),
NULL, Succ0MBB, Succ1MBB, CurMBB);
// Use visitSwitchCase to actually insert the fast branch sequence for this
// cond branch.
@@ -1322,9 +1322,11 @@ void SelectionDAGLowering::visitSwitchCase(CaseBlock &CB) {
if (CB.CmpMHS == NULL) {
// Fold "(X == true)" to X and "(X == false)" to !X to
// handle common cases produced by branch lowering.
- if (CB.CmpRHS == ConstantInt::getTrue() && CB.CC == ISD::SETEQ)
+ if (CB.CmpRHS == DAG.getContext()->getConstantIntTrue() &&
+ CB.CC == ISD::SETEQ)
Cond = CondLHS;
- else if (CB.CmpRHS == ConstantInt::getFalse() && CB.CC == ISD::SETEQ) {
+ else if (CB.CmpRHS == DAG.getContext()->getConstantIntFalse() &&
+ CB.CC == ISD::SETEQ) {
SDValue True = DAG.getConstant(1, CondLHS.getValueType());
Cond = DAG.getNode(ISD::XOR, dl, CondLHS.getValueType(), CondLHS, True);
} else
diff --git a/lib/Transforms/Scalar/PredicateSimplifier.cpp b/lib/Transforms/Scalar/PredicateSimplifier.cpp
index 9845f5f..df397ce 100644
--- a/lib/Transforms/Scalar/PredicateSimplifier.cpp
+++ b/lib/Transforms/Scalar/PredicateSimplifier.cpp
@@ -1690,8 +1690,8 @@ namespace {
bool isRelatedBy(Value *V1, Value *V2, ICmpInst::Predicate Pred) const {
if (Constant *C1 = dyn_cast<Constant>(V1))
if (Constant *C2 = dyn_cast<Constant>(V2))
- return ConstantExpr::getCompare(Pred, C1, C2) ==
- ConstantInt::getTrue();
+ return Context->getConstantExprCompare(Pred, C1, C2) ==
+ Context->getConstantIntTrue();
unsigned n1 = VN.valueNumber(V1, Top);
unsigned n2 = VN.valueNumber(V2, Top);
@@ -1803,10 +1803,10 @@ namespace {
// "icmp ult i32 %a, %y" EQ true then %a u< y
// etc.
- if (Canonical == ConstantInt::getTrue()) {
+ if (Canonical == Context->getConstantIntTrue()) {
add(IC->getOperand(0), IC->getOperand(1), IC->getPredicate(),
NewContext);
- } else if (Canonical == ConstantInt::getFalse()) {
+ } else if (Canonical == Context->getConstantIntFalse()) {
add(IC->getOperand(0), IC->getOperand(1),
ICmpInst::getInversePredicate(IC->getPredicate()), NewContext);
}
@@ -1822,11 +1822,11 @@ namespace {
if (isRelatedBy(True, False, ICmpInst::ICMP_NE)) {
if (Canonical == VN.canonicalize(True, Top) ||
isRelatedBy(Canonical, False, ICmpInst::ICMP_NE))
- add(SI->getCondition(), ConstantInt::getTrue(),
+ add(SI->getCondition(), Context->getConstantIntTrue(),
ICmpInst::ICMP_EQ, NewContext);
else if (Canonical == VN.canonicalize(False, Top) ||
isRelatedBy(Canonical, True, ICmpInst::ICMP_NE))
- add(SI->getCondition(), ConstantInt::getFalse(),
+ add(SI->getCondition(), Context->getConstantIntFalse(),
ICmpInst::ICMP_EQ, NewContext);
}
} else if (GetElementPtrInst *GEPI = dyn_cast<GetElementPtrInst>(I)) {
@@ -2050,9 +2050,10 @@ namespace {
ICmpInst::Predicate Pred = IC->getPredicate();
if (isRelatedBy(Op0, Op1, Pred))
- add(IC, ConstantInt::getTrue(), ICmpInst::ICMP_EQ, NewContext);
+ add(IC, Context->getConstantIntTrue(), ICmpInst::ICMP_EQ, NewContext);
else if (isRelatedBy(Op0, Op1, ICmpInst::getInversePredicate(Pred)))
- add(IC, ConstantInt::getFalse(), ICmpInst::ICMP_EQ, NewContext);
+ add(IC, Context->getConstantIntFalse(),
+ ICmpInst::ICMP_EQ, NewContext);
} else if (SelectInst *SI = dyn_cast<SelectInst>(I)) {
if (I->getType()->isFPOrFPVector()) return;
@@ -2063,9 +2064,9 @@ namespace {
// %b EQ %c then %a EQ %b
Value *Canonical = VN.canonicalize(SI->getCondition(), Top);
- if (Canonical == ConstantInt::getTrue()) {
+ if (Canonical == Context->getConstantIntTrue()) {
add(SI, SI->getTrueValue(), ICmpInst::ICMP_EQ, NewContext);
- } else if (Canonical == ConstantInt::getFalse()) {
+ } else if (Canonical == Context->getConstantIntFalse()) {
add(SI, SI->getFalseValue(), ICmpInst::ICMP_EQ, NewContext);
} else if (VN.canonicalize(SI->getTrueValue(), Top) ==
VN.canonicalize(SI->getFalseValue(), Top)) {
@@ -2154,8 +2155,8 @@ namespace {
// the BB as unreachable if so.
if (Constant *CI_L = dyn_cast<Constant>(O.LHS)) {
if (Constant *CI_R = dyn_cast<Constant>(O.RHS)) {
- if (ConstantExpr::getCompare(O.Op, CI_L, CI_R) ==
- ConstantInt::getFalse())
+ if (Context->getConstantExprCompare(O.Op, CI_L, CI_R) ==
+ Context->getConstantIntFalse())
UB.mark(TopBB);
WorkList.pop_front();
@@ -2446,6 +2447,8 @@ namespace {
return;
}
+ LLVMContext *Context = BI.getParent()->getContext();
+
for (DomTreeDFS::Node::iterator I = DTNode->begin(), E = DTNode->end();
I != E; ++I) {
BasicBlock *Dest = (*I)->getBlock();
@@ -2455,7 +2458,7 @@ namespace {
if (Dest == TrueDest) {
DOUT << "(" << DTNode->getBlock()->getName() << ") true set:\n";
VRPSolver VRP(VN, IG, UB, VR, PS->DTDFS, PS->modified, Dest);
- VRP.add(ConstantInt::getTrue(), Condition, ICmpInst::ICMP_EQ);
+ VRP.add(Context->getConstantIntTrue(), Condition, ICmpInst::ICMP_EQ);
VRP.solve();
DEBUG(VN.dump());
DEBUG(IG.dump());
@@ -2463,7 +2466,7 @@ namespace {
} else if (Dest == FalseDest) {
DOUT << "(" << DTNode->getBlock()->getName() << ") false set:\n";
VRPSolver VRP(VN, IG, UB, VR, PS->DTDFS, PS->modified, Dest);
- VRP.add(ConstantInt::getFalse(), Condition, ICmpInst::ICMP_EQ);
+ VRP.add(Context->getConstantIntFalse(), Condition, ICmpInst::ICMP_EQ);
VRP.solve();
DEBUG(VN.dump());
DEBUG(IG.dump());
diff --git a/lib/VMCore/Constants.cpp b/lib/VMCore/Constants.cpp
index 71e9837..347cd16 100644
--- a/lib/VMCore/Constants.cpp
+++ b/lib/VMCore/Constants.cpp
@@ -169,28 +169,6 @@ ConstantInt::ConstantInt(const IntegerType *Ty, const APInt& V)
assert(V.getBitWidth() == Ty->getBitWidth() && "Invalid constant for type");
}
-ConstantInt *ConstantInt::TheTrueVal = 0;
-ConstantInt *ConstantInt::TheFalseVal = 0;
-
-namespace llvm {
- void CleanupTrueFalse(void *) {
- ConstantInt::ResetTrueFalse();
- }
-}
-
-static ManagedCleanup<llvm::CleanupTrueFalse> TrueFalseCleanup;
-
-ConstantInt *ConstantInt::CreateTrueFalseVals(bool WhichOne) {
- assert(TheTrueVal == 0 && TheFalseVal == 0);
- TheTrueVal = getGlobalContext().getConstantInt(Type::Int1Ty, 1);
- TheFalseVal = getGlobalContext().getConstantInt(Type::Int1Ty, 0);
-
- // Ensure that llvm_shutdown nulls out TheTrueVal/TheFalseVal.
- TrueFalseCleanup.Register();
-
- return WhichOne ? TheTrueVal : TheFalseVal;
-}
-
//===----------------------------------------------------------------------===//
// ConstantFP
//===----------------------------------------------------------------------===//
diff --git a/lib/VMCore/LLVMContext.cpp b/lib/VMCore/LLVMContext.cpp
index 4d847a7..bb3762b 100644
--- a/lib/VMCore/LLVMContext.cpp
+++ b/lib/VMCore/LLVMContext.cpp
@@ -81,11 +81,15 @@ UndefValue* LLVMContext::getUndef(const Type* Ty) {
// ConstantInt accessors.
ConstantInt* LLVMContext::getConstantIntTrue() {
- return ConstantInt::getTrue();
+ assert(this && "Context not initialized!");
+ assert(pImpl && "Context not initialized!");
+ return pImpl->getConstantIntTrue();
}
ConstantInt* LLVMContext::getConstantIntFalse() {
- return ConstantInt::getFalse();
+ assert(this && "Context not initialized!");
+ assert(pImpl && "Context not initialized!");
+ return pImpl->getConstantIntFalse();
}
Constant* LLVMContext::getConstantInt(const Type* Ty, uint64_t V,
diff --git a/lib/VMCore/LLVMContextImpl.h b/lib/VMCore/LLVMContextImpl.h
index 129a759..5571995 100644
--- a/lib/VMCore/LLVMContextImpl.h
+++ b/lib/VMCore/LLVMContextImpl.h
@@ -15,6 +15,8 @@
#ifndef LLVM_LLVMCONTEXT_IMPL_H
#define LLVM_LLVMCONTEXT_IMPL_H
+#include "llvm/LLVMContext.h"
+#include "llvm/DerivedTypes.h"
#include "llvm/System/RWMutex.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/APInt.h"
@@ -100,10 +102,13 @@ class LLVMContextImpl {
FoldingSet<MDNode> MDNodeSet;
LLVMContext &Context;
+ ConstantInt *TheTrueVal;
+ ConstantInt *TheFalseVal;
+
LLVMContextImpl();
LLVMContextImpl(const LLVMContextImpl&);
public:
- LLVMContextImpl(LLVMContext &C) : Context(C) { }
+ LLVMContextImpl(LLVMContext &C) : Context(C), TheTrueVal(0), TheFalseVal(0) {}
/// Return a ConstantInt with the specified value and an implied Type. The
/// type is the integer type that corresponds to the bit width of the value.
@@ -115,6 +120,20 @@ public:
MDNode *getMDNode(Value*const* Vals, unsigned NumVals);
+ ConstantInt *getConstantIntTrue() {
+ if (TheTrueVal)
+ return TheTrueVal;
+ else
+ return (TheTrueVal = Context.getConstantInt(IntegerType::get(1), 1));
+ }
+
+ ConstantInt *getConstantIntFalse() {
+ if (TheFalseVal)
+ return TheFalseVal;
+ else
+ return (TheFalseVal = Context.getConstantInt(IntegerType::get(1), 0));
+ }
+
void erase(MDString *M);
void erase(MDNode *M);
};
generated by cgit v1.1 at 2024-12-27 11:33:12 +0000