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authorNick Lewycky <nicholas@mxc.ca>2011-05-21 23:14:36 +0000
committerNick Lewycky <nicholas@mxc.ca>2011-05-21 23:14:36 +0000
commit0cf51561eddd659a7b427f40144e22363fd95a57 (patch)
treea66609b096578e6bd62f2c9cc5e6e292bcdcb8bc
parentd22920aae81ec318404f7c5235c634954d966cf6 (diff)
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Add CreateLifetimeStart and CreateLifetimeEnd to the IRBuilder, with plans to
use these soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131812 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--include/llvm/Support/IRBuilder.h22
-rw-r--r--lib/VMCore/IRBuilder.cpp31
-rw-r--r--unittests/Support/IRBuilderTest.cpp70
3 files changed, 118 insertions, 5 deletions
diff --git a/include/llvm/Support/IRBuilder.h b/include/llvm/Support/IRBuilder.h
index ea3e6b4..6a7c277 100644
--- a/include/llvm/Support/IRBuilder.h
+++ b/include/llvm/Support/IRBuilder.h
@@ -107,6 +107,10 @@ public:
I->setDebugLoc(CurDbgLocation);
}
+ /// getCurrentFunctionReturnType - Get the return type of the current function
+ /// that we're emitting into.
+ const Type *getCurrentFunctionReturnType() const;
+
/// InsertPoint - A saved insertion point.
class InsertPoint {
BasicBlock *Block;
@@ -195,6 +199,7 @@ public:
return ConstantInt::get(getInt64Ty(), C);
}
+ /// getInt - Get a constant integer value.
ConstantInt *getInt(const APInt &AI) {
return ConstantInt::get(Context, AI);
}
@@ -247,10 +252,10 @@ public:
return Type::getInt8PtrTy(Context, AddrSpace);
}
- /// getCurrentFunctionReturnType - Get the return type of the current function
- /// that we're emitting into.
- const Type *getCurrentFunctionReturnType() const;
-
+ //===--------------------------------------------------------------------===//
+ // Intrinsic creation methods
+ //===--------------------------------------------------------------------===//
+
/// CreateMemSet - Create and insert a memset to the specified pointer and the
/// specified value. If the pointer isn't an i8*, it will be converted. If a
/// TBAA tag is specified, it will be added to the instruction.
@@ -283,6 +288,15 @@ public:
CallInst *CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
bool isVolatile = false, MDNode *TBAATag = 0);
+
+ /// CreateLifetimeStart - Create a lifetime.start intrinsic. If the pointer
+ /// isn't i8* it will be converted.
+ CallInst *CreateLifetimeStart(Value *Ptr, ConstantInt *Size = 0);
+
+ /// CreateLifetimeEnd - Create a lifetime.end intrinsic. If the pointer isn't
+ /// i8* it will be converted.
+ CallInst *CreateLifetimeEnd(Value *Ptr, ConstantInt *Size = 0);
+
private:
Value *getCastedInt8PtrValue(Value *Ptr);
};
diff --git a/lib/VMCore/IRBuilder.cpp b/lib/VMCore/IRBuilder.cpp
index 2149155..f2d469a 100644
--- a/lib/VMCore/IRBuilder.cpp
+++ b/lib/VMCore/IRBuilder.cpp
@@ -60,7 +60,6 @@ static CallInst *createCallHelper(Value *Callee, Value *const* Ops,
return CI;
}
-
CallInst *IRBuilderBase::
CreateMemSet(Value *Ptr, Value *Val, Value *Size, unsigned Align,
bool isVolatile, MDNode *TBAATag) {
@@ -118,3 +117,33 @@ CreateMemMove(Value *Dst, Value *Src, Value *Size, unsigned Align,
return CI;
}
+
+CallInst *IRBuilderBase::CreateLifetimeStart(Value *Ptr, ConstantInt *Size) {
+ assert(isa<PointerType>(Ptr->getType()) &&
+ "lifetime.start only applies to pointers.");
+ Ptr = getCastedInt8PtrValue(Ptr);
+ if (!Size)
+ Size = getInt64(-1);
+ else
+ assert(Size->getType() == getInt64Ty() &&
+ "lifetime.start requires the size to be an i64");
+ Value *Ops[] = { Size, Ptr };
+ Module *M = BB->getParent()->getParent();
+ Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_start);
+ return createCallHelper(TheFn, Ops, 2, this);
+}
+
+CallInst *IRBuilderBase::CreateLifetimeEnd(Value *Ptr, ConstantInt *Size) {
+ assert(isa<PointerType>(Ptr->getType()) &&
+ "lifetime.end only applies to pointers.");
+ Ptr = getCastedInt8PtrValue(Ptr);
+ if (!Size)
+ Size = getInt64(-1);
+ else
+ assert(Size->getType() == getInt64Ty() &&
+ "lifetime.end requires the size to be an i64");
+ Value *Ops[] = { Size, Ptr };
+ Module *M = BB->getParent()->getParent();
+ Value *TheFn = Intrinsic::getDeclaration(M, Intrinsic::lifetime_end);
+ return createCallHelper(TheFn, Ops, 2, this);
+}
diff --git a/unittests/Support/IRBuilderTest.cpp b/unittests/Support/IRBuilderTest.cpp
new file mode 100644
index 0000000..5d635ae
--- /dev/null
+++ b/unittests/Support/IRBuilderTest.cpp
@@ -0,0 +1,70 @@
+//===- llvm/unittest/Support/IRBuilderTest.cpp - IRBuilder tests ----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/IRBuilder.h"
+#include "llvm/BasicBlock.h"
+#include "llvm/Function.h"
+#include "llvm/IntrinsicInst.h"
+#include "llvm/LLVMContext.h"
+#include "llvm/Module.h"
+#include "llvm/ADT/OwningPtr.h"
+
+#include "gtest/gtest.h"
+
+using namespace llvm;
+
+class IRBuilderTest : public testing::Test {
+protected:
+ virtual void SetUp() {
+ M.reset(new Module("MyModule", getGlobalContext()));
+ FunctionType *FTy = FunctionType::get(Type::getVoidTy(getGlobalContext()),
+ /*isVarArg=*/false);
+ Function *F = Function::Create(FTy, Function::ExternalLinkage, "", M.get());
+ BB = BasicBlock::Create(getGlobalContext(), "", F);
+ }
+
+ virtual void TearDown() {
+ BB = 0;
+ M.reset();
+ }
+
+ OwningPtr<Module> M;
+ BasicBlock *BB;
+};
+
+TEST_F(IRBuilderTest, Lifetime) {
+ IRBuilder<> Builder(BB);
+ AllocaInst *Var1 = Builder.CreateAlloca(Builder.getInt8Ty());
+ AllocaInst *Var2 = Builder.CreateAlloca(Builder.getInt32Ty());
+ AllocaInst *Var3 = Builder.CreateAlloca(Builder.getInt8Ty(),
+ Builder.getInt32(123));
+
+ CallInst *Start1 = Builder.CreateLifetimeStart(Var1);
+ CallInst *Start2 = Builder.CreateLifetimeStart(Var2);
+ CallInst *Start3 = Builder.CreateLifetimeStart(Var3, Builder.getInt64(100));
+
+ EXPECT_EQ(Start1->getArgOperand(0), Builder.getInt64(-1));
+ EXPECT_EQ(Start2->getArgOperand(0), Builder.getInt64(-1));
+ EXPECT_EQ(Start3->getArgOperand(0), Builder.getInt64(100));
+
+ EXPECT_EQ(Start1->getArgOperand(1), Var1);
+ EXPECT_NE(Start2->getArgOperand(1), Var2);
+ EXPECT_EQ(Start3->getArgOperand(1), Var3);
+
+ Value *End1 = Builder.CreateLifetimeEnd(Var1);
+ Builder.CreateLifetimeEnd(Var2);
+ Builder.CreateLifetimeEnd(Var3);
+
+ IntrinsicInst *II_Start1 = dyn_cast<IntrinsicInst>(Start1);
+ IntrinsicInst *II_End1 = dyn_cast<IntrinsicInst>(End1);
+ ASSERT_TRUE(II_Start1 != NULL);
+ EXPECT_EQ(II_Start1->getIntrinsicID(), Intrinsic::lifetime_start);
+ ASSERT_TRUE(II_End1 != NULL);
+ EXPECT_EQ(II_End1->getIntrinsicID(), Intrinsic::lifetime_end);
+}