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authorEric Christopher <echristo@apple.com>2011-06-09 05:58:50 +0000
committerEric Christopher <echristo@apple.com>2011-06-09 05:58:50 +0000
commitc3a627de3f857d3788b8e689cfa4b93b5013b07c (patch)
tree2a3ac045dbdf2e7c0343b3289366fca75cfdb36b /examples/HowToUseJIT
parentc53cc48ca98c86a9ccb9de632c77890c5f7ea2d5 (diff)
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Have the JIT tutorial use IRBuilder for the IR.
Patch by Jake Waskett! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132770 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'examples/HowToUseJIT')
-rw-r--r--examples/HowToUseJIT/HowToUseJIT.cpp25
1 files changed, 17 insertions, 8 deletions
diff --git a/examples/HowToUseJIT/HowToUseJIT.cpp b/examples/HowToUseJIT/HowToUseJIT.cpp
index 8e3b6dc..a8c3ce4 100644
--- a/examples/HowToUseJIT/HowToUseJIT.cpp
+++ b/examples/HowToUseJIT/HowToUseJIT.cpp
@@ -45,6 +45,8 @@
#include "llvm/Target/TargetSelect.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/IRBuilder.h"
+
using namespace llvm;
int main() {
@@ -68,8 +70,12 @@ int main() {
// because of the last argument.
BasicBlock *BB = BasicBlock::Create(Context, "EntryBlock", Add1F);
+ // Create a basic block builder with default parameters. The builder will
+ // automatically append instructions to the basic block `BB'.
+ IRBuilder<> builder(BB);
+
// Get pointers to the constant `1'.
- Value *One = ConstantInt::get(Type::getInt32Ty(Context), 1);
+ Value *One = builder.getInt32(1);
// Get pointers to the integer argument of the add1 function...
assert(Add1F->arg_begin() != Add1F->arg_end()); // Make sure there's an arg
@@ -77,10 +83,10 @@ int main() {
ArgX->setName("AnArg"); // Give it a nice symbolic name for fun.
// Create the add instruction, inserting it into the end of BB.
- Instruction *Add = BinaryOperator::CreateAdd(One, ArgX, "addresult", BB);
+ Value *Add = builder.CreateAdd(One, ArgX);
// Create the return instruction and add it to the basic block
- ReturnInst::Create(Context, Add, BB);
+ builder.CreateRet(Add);
// Now, function add1 is ready.
@@ -94,15 +100,18 @@ int main() {
// Add a basic block to the FooF function.
BB = BasicBlock::Create(Context, "EntryBlock", FooF);
- // Get pointers to the constant `10'.
- Value *Ten = ConstantInt::get(Type::getInt32Ty(Context), 10);
+ // Tell the basic block builder to attach itself to the new basic block
+ builder.SetInsertPoint(BB);
+
+ // Get pointer to the constant `10'.
+ Value *Ten = builder.getInt32(10);
- // Pass Ten to the call call:
- CallInst *Add1CallRes = CallInst::Create(Add1F, Ten, "add1", BB);
+ // Pass Ten to the call to Add1F
+ CallInst *Add1CallRes = builder.CreateCall(Add1F, Ten);
Add1CallRes->setTailCall(true);
// Create the return instruction and add it to the basic block.
- ReturnInst::Create(Context, Add1CallRes, BB);
+ builder.CreateRet(Add1CallRes);
// Now we create the JIT.
ExecutionEngine* EE = EngineBuilder(M).create();