mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
ab5e6db94c
Added LoadInstCount, StoreInstCount, MaxLoopDepth, LoopCount Reviewed By: jdoerfert, mtrofin Differential Revision: https://reviews.llvm.org/D82283
93 lines
3.1 KiB
C++
93 lines
3.1 KiB
C++
//===- FunctionPropertiesAnalysisTest.cpp - Function Properties 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/FunctionPropertiesAnalysis.h"
|
|
#include "llvm/AsmParser/Parser.h"
|
|
#include "llvm/IR/Dominators.h"
|
|
#include "llvm/IR/Instructions.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
namespace {
|
|
|
|
class FunctionPropertiesAnalysisTest : public testing::Test {
|
|
protected:
|
|
std::unique_ptr<DominatorTree> DT;
|
|
std::unique_ptr<LoopInfo> LI;
|
|
|
|
FunctionPropertiesInfo buildFPI(Function &F) {
|
|
DT.reset(new DominatorTree(F));
|
|
LI.reset(new LoopInfo(*DT));
|
|
return FunctionPropertiesInfo::getFunctionPropertiesInfo(F, *LI);
|
|
}
|
|
|
|
std::unique_ptr<Module> makeLLVMModule(LLVMContext &C, const char *IR) {
|
|
SMDiagnostic Err;
|
|
std::unique_ptr<Module> Mod = parseAssemblyString(IR, Err, C);
|
|
if (!Mod)
|
|
Err.print("MLAnalysisTests", errs());
|
|
return Mod;
|
|
}
|
|
};
|
|
|
|
TEST_F(FunctionPropertiesAnalysisTest, BasicTest) {
|
|
LLVMContext C;
|
|
std::unique_ptr<Module> M = makeLLVMModule(C,
|
|
R"IR(
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-pc-linux-gnu"
|
|
declare i32 @f1(i32)
|
|
declare i32 @f2(i32)
|
|
define i32 @branches(i32) {
|
|
%cond = icmp slt i32 %0, 3
|
|
br i1 %cond, label %then, label %else
|
|
then:
|
|
%ret.1 = call i32 @f1(i32 %0)
|
|
br label %last.block
|
|
else:
|
|
%ret.2 = call i32 @f2(i32 %0)
|
|
br label %last.block
|
|
last.block:
|
|
%ret = phi i32 [%ret.1, %then], [%ret.2, %else]
|
|
ret i32 %ret
|
|
}
|
|
define internal i32 @top() {
|
|
%1 = call i32 @branches(i32 2)
|
|
%2 = call i32 @f1(i32 %1)
|
|
ret i32 %2
|
|
}
|
|
)IR");
|
|
|
|
Function *BranchesFunction = M->getFunction("branches");
|
|
FunctionPropertiesInfo BranchesFeatures = buildFPI(*BranchesFunction);
|
|
EXPECT_EQ(BranchesFeatures.BasicBlockCount, 4);
|
|
EXPECT_EQ(BranchesFeatures.BlocksReachedFromConditionalInstruction, 2);
|
|
// 2 Users: top is one. The other is added because @branches is not internal,
|
|
// so it may have external callers.
|
|
EXPECT_EQ(BranchesFeatures.Uses, 2);
|
|
EXPECT_EQ(BranchesFeatures.DirectCallsToDefinedFunctions, 0);
|
|
EXPECT_EQ(BranchesFeatures.LoadInstCount, 0);
|
|
EXPECT_EQ(BranchesFeatures.StoreInstCount, 0);
|
|
EXPECT_EQ(BranchesFeatures.MaxLoopDepth, 0);
|
|
EXPECT_EQ(BranchesFeatures.TopLevelLoopCount, 0);
|
|
|
|
Function *TopFunction = M->getFunction("top");
|
|
FunctionPropertiesInfo TopFeatures = buildFPI(*TopFunction);
|
|
EXPECT_EQ(TopFeatures.BasicBlockCount, 1);
|
|
EXPECT_EQ(TopFeatures.BlocksReachedFromConditionalInstruction, 0);
|
|
EXPECT_EQ(TopFeatures.Uses, 0);
|
|
EXPECT_EQ(TopFeatures.DirectCallsToDefinedFunctions, 1);
|
|
EXPECT_EQ(BranchesFeatures.LoadInstCount, 0);
|
|
EXPECT_EQ(BranchesFeatures.StoreInstCount, 0);
|
|
EXPECT_EQ(BranchesFeatures.MaxLoopDepth, 0);
|
|
EXPECT_EQ(BranchesFeatures.TopLevelLoopCount, 0);
|
|
}
|
|
} // end anonymous namespace
|