forked from OSchip/llvm-project
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
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//===- InlineCostTest.cpp - test for InlineCost ---------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/InlineCost.h"
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#include "llvm/Analysis/TargetTransformInfo.h"
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#include "llvm/AsmParser/Parser.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "gtest/gtest.h"
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namespace {
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// Tests that we can retrieve the CostFeatures without an error
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TEST(InlineCostTest, CostFeatures) {
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using namespace llvm;
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const auto *const IR = R"IR(
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define i32 @f(i32) {
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ret i32 4
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}
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define i32 @g(i32) {
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%2 = call i32 @f(i32 0)
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ret i32 %2
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}
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)IR";
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LLVMContext C;
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SMDiagnostic Err;
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std::unique_ptr<Module> M = parseAssemblyString(IR, Err, C);
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ASSERT_TRUE(M);
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auto *G = M->getFunction("g");
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ASSERT_TRUE(G);
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// find the call to f in g
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CallBase *CB = nullptr;
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for (auto &BB : *G) {
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for (auto &I : BB) {
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if ((CB = dyn_cast<CallBase>(&I)))
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break;
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}
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}
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ASSERT_TRUE(CB);
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ModuleAnalysisManager MAM;
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FunctionAnalysisManager FAM;
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FAM.registerPass([&] { return TargetIRAnalysis(); });
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FAM.registerPass([&] { return ModuleAnalysisManagerFunctionProxy(MAM); });
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FAM.registerPass([&] { return AssumptionAnalysis(); });
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MAM.registerPass([&] { return FunctionAnalysisManagerModuleProxy(FAM); });
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MAM.registerPass([&] { return PassInstrumentationAnalysis(); });
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FAM.registerPass([&] { return PassInstrumentationAnalysis(); });
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ModulePassManager MPM;
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MPM.run(*M, MAM);
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auto GetAssumptionCache = [&](Function &F) -> AssumptionCache & {
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return FAM.getResult<AssumptionAnalysis>(F);
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};
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auto &TIR = FAM.getResult<TargetIRAnalysis>(*G);
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const auto Features =
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llvm::getInliningCostFeatures(*CB, TIR, GetAssumptionCache);
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// Check that the optional is not empty
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ASSERT_TRUE(Features);
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}
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} // namespace
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