mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
60e56af075
Summary: This is one more prep step necessary before the code gen pass instrumentation code could go in. Reviewers: davidxl Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D70988
130 lines
4.1 KiB
C++
130 lines
4.1 KiB
C++
//===- SizeOptsTest.cpp - SizeOpts 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/Transforms/Utils/SizeOpts.h"
|
|
#include "llvm/Analysis/ProfileSummaryInfo.h"
|
|
#include "llvm/Analysis/BlockFrequencyInfo.h"
|
|
#include "llvm/Analysis/BranchProbabilityInfo.h"
|
|
#include "llvm/Analysis/LoopInfo.h"
|
|
#include "llvm/AsmParser/Parser.h"
|
|
#include "llvm/IR/BasicBlock.h"
|
|
#include "llvm/IR/Dominators.h"
|
|
#include "llvm/IR/Function.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/Support/FormatVariadic.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
class SizeOptsTest : public testing::Test {
|
|
protected:
|
|
static const char* IRString;
|
|
LLVMContext C;
|
|
std::unique_ptr<Module> M;
|
|
struct BFIData {
|
|
std::unique_ptr<DominatorTree> DT;
|
|
std::unique_ptr<LoopInfo> LI;
|
|
std::unique_ptr<BranchProbabilityInfo> BPI;
|
|
std::unique_ptr<BlockFrequencyInfo> BFI;
|
|
BFIData(Function &F) {
|
|
DT.reset(new DominatorTree(F));
|
|
LI.reset(new LoopInfo(*DT));
|
|
BPI.reset(new BranchProbabilityInfo(F, *LI));
|
|
BFI.reset(new BlockFrequencyInfo(F, *BPI, *LI));
|
|
}
|
|
BlockFrequencyInfo *get() { return BFI.get(); }
|
|
};
|
|
|
|
void SetUp() override {
|
|
SMDiagnostic Err;
|
|
M = parseAssemblyString(IRString, Err, C);
|
|
}
|
|
};
|
|
|
|
TEST_F(SizeOptsTest, Test) {
|
|
Function *F = M->getFunction("f");
|
|
Function *G = M->getFunction("g");
|
|
Function *H = M->getFunction("h");
|
|
|
|
ProfileSummaryInfo PSI(*M.get());
|
|
BFIData BFID_F(*F);
|
|
BFIData BFID_G(*G);
|
|
BFIData BFID_H(*H);
|
|
BlockFrequencyInfo *BFI_F = BFID_F.get();
|
|
BlockFrequencyInfo *BFI_G = BFID_G.get();
|
|
BlockFrequencyInfo *BFI_H = BFID_H.get();
|
|
BasicBlock &BB0 = F->getEntryBlock();
|
|
BasicBlock *BB1 = BB0.getTerminator()->getSuccessor(0);
|
|
BasicBlock *BB2 = BB0.getTerminator()->getSuccessor(1);
|
|
BasicBlock *BB3 = BB1->getSingleSuccessor();
|
|
|
|
EXPECT_TRUE(PSI.hasProfileSummary());
|
|
EXPECT_FALSE(shouldOptimizeForSize(F, &PSI, BFI_F, PGSOQueryType::Test));
|
|
EXPECT_TRUE(shouldOptimizeForSize(G, &PSI, BFI_G, PGSOQueryType::Test));
|
|
EXPECT_FALSE(shouldOptimizeForSize(H, &PSI, BFI_H, PGSOQueryType::Test));
|
|
EXPECT_FALSE(shouldOptimizeForSize(&BB0, &PSI, BFI_F, PGSOQueryType::Test));
|
|
EXPECT_FALSE(shouldOptimizeForSize(BB1, &PSI, BFI_F, PGSOQueryType::Test));
|
|
EXPECT_TRUE(shouldOptimizeForSize(BB2, &PSI, BFI_F, PGSOQueryType::Test));
|
|
EXPECT_FALSE(shouldOptimizeForSize(BB3, &PSI, BFI_F, PGSOQueryType::Test));
|
|
}
|
|
|
|
const char* SizeOptsTest::IRString = R"IR(
|
|
define i32 @g(i32 %x) !prof !14 {
|
|
ret i32 0
|
|
}
|
|
|
|
define i32 @h(i32 %x) !prof !15 {
|
|
ret i32 0
|
|
}
|
|
|
|
define i32 @f(i32 %x) !prof !16 {
|
|
bb0:
|
|
%y1 = icmp eq i32 %x, 0
|
|
br i1 %y1, label %bb1, label %bb2, !prof !17
|
|
|
|
bb1: ; preds = %bb0
|
|
%z1 = call i32 @g(i32 %x)
|
|
br label %bb3
|
|
|
|
bb2: ; preds = %bb0
|
|
%z2 = call i32 @h(i32 %x)
|
|
br label %bb3
|
|
|
|
bb3: ; preds = %bb2, %bb1
|
|
%y2 = phi i32 [ 0, %bb1 ], [ 1, %bb2 ]
|
|
ret i32 %y2
|
|
}
|
|
|
|
!llvm.module.flags = !{!0}
|
|
|
|
!0 = !{i32 1, !"ProfileSummary", !1}
|
|
!1 = !{!2, !3, !4, !5, !6, !7, !8, !9}
|
|
!2 = !{!"ProfileFormat", !"InstrProf"}
|
|
!3 = !{!"TotalCount", i64 10000}
|
|
!4 = !{!"MaxCount", i64 10}
|
|
!5 = !{!"MaxInternalCount", i64 1}
|
|
!6 = !{!"MaxFunctionCount", i64 1000}
|
|
!7 = !{!"NumCounts", i64 3}
|
|
!8 = !{!"NumFunctions", i64 3}
|
|
!9 = !{!"DetailedSummary", !10}
|
|
!10 = !{!11, !12, !13}
|
|
!11 = !{i32 10000, i64 1000, i32 1}
|
|
!12 = !{i32 999000, i64 300, i32 3}
|
|
!13 = !{i32 999999, i64 5, i32 10}
|
|
!14 = !{!"function_entry_count", i64 1}
|
|
!15 = !{!"function_entry_count", i64 100}
|
|
!16 = !{!"function_entry_count", i64 400}
|
|
!17 = !{!"branch_weights", i32 100, i32 1}
|
|
)IR";
|
|
|
|
} // end anonymous namespace
|