forked from OSchip/llvm-project
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
//===- OrderedBasicBlockTest.cpp - OrderedBasicBlock unit tests -----------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Analysis/OrderedBasicBlock.h"
|
|
#include "llvm/AsmParser/Parser.h"
|
|
#include "llvm/IR/BasicBlock.h"
|
|
#include "llvm/IR/Function.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
namespace llvm {
|
|
namespace {
|
|
|
|
class OrderedBasicBlockTest : public testing::Test {
|
|
protected:
|
|
LLVMContext C;
|
|
|
|
std::unique_ptr<Module> makeLLVMModule() {
|
|
const char *ModuleString = R"(define i32 @f(i32 %x) {
|
|
%add = add i32 %x, 42
|
|
ret i32 %add
|
|
})";
|
|
SMDiagnostic Err;
|
|
auto foo = parseAssemblyString(ModuleString, Err, C);
|
|
return foo;
|
|
}
|
|
};
|
|
|
|
TEST_F(OrderedBasicBlockTest, Basic) {
|
|
auto M = makeLLVMModule();
|
|
Function *F = M->getFunction("f");
|
|
BasicBlock::iterator I = F->front().begin();
|
|
Instruction *Add = &*I++;
|
|
Instruction *Ret = &*I++;
|
|
|
|
OrderedBasicBlock OBB(&F->front());
|
|
// Intentionally duplicated to verify cached and uncached are the same.
|
|
EXPECT_FALSE(OBB.dominates(Add, Add));
|
|
EXPECT_FALSE(OBB.dominates(Add, Add));
|
|
EXPECT_TRUE(OBB.dominates(Add, Ret));
|
|
EXPECT_TRUE(OBB.dominates(Add, Ret));
|
|
EXPECT_FALSE(OBB.dominates(Ret, Add));
|
|
EXPECT_FALSE(OBB.dominates(Ret, Add));
|
|
EXPECT_FALSE(OBB.dominates(Ret, Ret));
|
|
EXPECT_FALSE(OBB.dominates(Ret, Ret));
|
|
}
|
|
|
|
} // end anonymous namespace
|
|
} // end namespace llvm
|