Decouple llvm::SpecialCaseList text representation and its LLVM IR semantics.

Turn llvm::SpecialCaseList into a simple class that parses text files in
a specified format and knows nothing about LLVM IR. Move this class into
LLVMSupport library. Implement two users of this class:
  * DFSanABIList in DFSan instrumentation pass.
  * SanitizerBlacklist in Clang CodeGen library.
The latter will be modified to use actual source-level information from frontend
(source file names) instead of unstable LLVM IR things (LLVM Module identifier).

Remove dependency edge from ClangCodeGen/ClangDriver to LLVMTransformUtils.

No functionality change.

llvm-svn: 212643

1 files changed, 0 insertions, 232 deletions

diff --git a/llvm/unittests/Transforms/Utils/SpecialCaseList.cpp b/llvm/unittests/Transforms/Utils/SpecialCaseList.cpp
deleted file mode 100644
index bcbca493af2..00000000000
--- a/llvm/unittests/Transforms/Utils/SpecialCaseList.cpp
+++ /dev/null
@@ -1,232 +0,0 @@
-//===- SpecialCaseList.cpp - Unit tests for SpecialCaseList ---------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/IR/Function.h"
-#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Transforms/Utils/SpecialCaseList.h"
-#include "gtest/gtest.h"
-
-using namespace llvm;
-
-namespace {
-
-class SpecialCaseListTest : public ::testing::Test {
-protected:
-  Function *makeFunction(StringRef Name, Module &M) {
-    return Function::Create(FunctionType::get(Type::getVoidTy(Ctx), false),
-                            GlobalValue::ExternalLinkage,
-                            Name,
-                            &M);
-  }
-
-  GlobalVariable *makeGlobal(StringRef Name, StringRef StructName, Module &M) {
-    StructType *ST =
-        StructType::create(StructName, Type::getInt32Ty(Ctx), (Type*)nullptr);
-    return new GlobalVariable(
-        M, ST, false, GlobalValue::ExternalLinkage, nullptr, Name);
-  }
-
-  GlobalAlias *makeAlias(StringRef Name, GlobalObject *Aliasee) {
-    return GlobalAlias::create(GlobalValue::ExternalLinkage, Name, Aliasee);
-  }
-
-  SpecialCaseList *makeSpecialCaseList(StringRef List, std::string &Error) {
-    std::unique_ptr<MemoryBuffer> MB(MemoryBuffer::getMemBuffer(List));
-    return SpecialCaseList::create(MB.get(), Error);
-  }
-
-  SpecialCaseList *makeSpecialCaseList(StringRef List) {
-    std::string Error;
-    SpecialCaseList *SCL = makeSpecialCaseList(List, Error);
-    assert(SCL);
-    assert(Error == "");
-    return SCL;
-  }
-
-  LLVMContext Ctx;
-};
-
-TEST_F(SpecialCaseListTest, ModuleIsIn) {
-  Module M("hello", Ctx);
-  Function *F = makeFunction("foo", M);
-  GlobalVariable *GV = makeGlobal("bar", "t", M);
-
-  std::unique_ptr<SpecialCaseList> SCL(
-      makeSpecialCaseList("# This is a comment.\n"
-                          "\n"
-                          "src:hello\n"));
-  EXPECT_TRUE(SCL->isIn(M));
-  EXPECT_TRUE(SCL->isIn(*F));
-  EXPECT_TRUE(SCL->isIn(*GV));
-
-  SCL.reset(makeSpecialCaseList("src:he*o\n"));
-  EXPECT_TRUE(SCL->isIn(M));
-  EXPECT_TRUE(SCL->isIn(*F));
-  EXPECT_TRUE(SCL->isIn(*GV));
-
-  SCL.reset(makeSpecialCaseList("src:hi\n"));
-  EXPECT_FALSE(SCL->isIn(M));
-  EXPECT_FALSE(SCL->isIn(*F));
-  EXPECT_FALSE(SCL->isIn(*GV));
-}
-
-TEST_F(SpecialCaseListTest, FunctionIsIn) {
-  Module M("hello", Ctx);
-  Function *Foo = makeFunction("foo", M);
-  Function *Bar = makeFunction("bar", M);
-
-  std::unique_ptr<SpecialCaseList> SCL(makeSpecialCaseList("fun:foo\n"));
-  EXPECT_TRUE(SCL->isIn(*Foo));
-  EXPECT_FALSE(SCL->isIn(*Bar));
-
-  SCL.reset(makeSpecialCaseList("fun:b*\n"));
-  EXPECT_FALSE(SCL->isIn(*Foo));
-  EXPECT_TRUE(SCL->isIn(*Bar));
-
-  SCL.reset(makeSpecialCaseList("fun:f*\n"
-                                "fun:bar\n"));
-  EXPECT_TRUE(SCL->isIn(*Foo));
-  EXPECT_TRUE(SCL->isIn(*Bar));
-
-  SCL.reset(makeSpecialCaseList("fun:foo=functional\n"));
-  EXPECT_TRUE(SCL->isIn(*Foo, "functional"));
-  StringRef Category;
-  EXPECT_FALSE(SCL->isIn(*Bar, "functional"));
-}
-
-TEST_F(SpecialCaseListTest, GlobalIsIn) {
-  Module M("hello", Ctx);
-  GlobalVariable *Foo = makeGlobal("foo", "t1", M);
-  GlobalVariable *Bar = makeGlobal("bar", "t2", M);
-
-  std::unique_ptr<SpecialCaseList> SCL(makeSpecialCaseList("global:foo\n"));
-  EXPECT_TRUE(SCL->isIn(*Foo));
-  EXPECT_FALSE(SCL->isIn(*Bar));
-  EXPECT_FALSE(SCL->isIn(*Foo, "init"));
-  EXPECT_FALSE(SCL->isIn(*Bar, "init"));
-
-  SCL.reset(makeSpecialCaseList("global:foo=init\n"));
-  EXPECT_FALSE(SCL->isIn(*Foo));
-  EXPECT_FALSE(SCL->isIn(*Bar));
-  EXPECT_TRUE(SCL->isIn(*Foo, "init"));
-  EXPECT_FALSE(SCL->isIn(*Bar, "init"));
-
-  SCL.reset(makeSpecialCaseList("global-init:foo\n"));
-  EXPECT_FALSE(SCL->isIn(*Foo));
-  EXPECT_FALSE(SCL->isIn(*Bar));
-  EXPECT_TRUE(SCL->isIn(*Foo, "init"));
-  EXPECT_FALSE(SCL->isIn(*Bar, "init"));
-
-  SCL.reset(makeSpecialCaseList("type:t2=init\n"));
-  EXPECT_FALSE(SCL->isIn(*Foo));
-  EXPECT_FALSE(SCL->isIn(*Bar));
-  EXPECT_FALSE(SCL->isIn(*Foo, "init"));
-  EXPECT_TRUE(SCL->isIn(*Bar, "init"));
-
-  SCL.reset(makeSpecialCaseList("global-init-type:t2\n"));
-  EXPECT_FALSE(SCL->isIn(*Foo));
-  EXPECT_FALSE(SCL->isIn(*Bar));
-  EXPECT_FALSE(SCL->isIn(*Foo, "init"));
-  EXPECT_TRUE(SCL->isIn(*Bar, "init"));
-
-  SCL.reset(makeSpecialCaseList("src:hello=init\n"));
-  EXPECT_FALSE(SCL->isIn(*Foo));
-  EXPECT_FALSE(SCL->isIn(*Bar));
-  EXPECT_TRUE(SCL->isIn(*Foo, "init"));
-  EXPECT_TRUE(SCL->isIn(*Bar, "init"));
-
-  SCL.reset(makeSpecialCaseList("global-init-src:hello\n"));
-  EXPECT_FALSE(SCL->isIn(*Foo));
-  EXPECT_FALSE(SCL->isIn(*Bar));
-  EXPECT_TRUE(SCL->isIn(*Foo, "init"));
-  EXPECT_TRUE(SCL->isIn(*Bar, "init"));
-}
-
-TEST_F(SpecialCaseListTest, AliasIsIn) {
-  Module M("hello", Ctx);
-  Function *Foo = makeFunction("foo", M);
-  GlobalVariable *Bar = makeGlobal("bar", "t", M);
-  GlobalAlias *FooAlias = makeAlias("fooalias", Foo);
-  GlobalAlias *BarAlias = makeAlias("baralias", Bar);
-
-  std::unique_ptr<SpecialCaseList> SCL(makeSpecialCaseList("fun:foo\n"));
-  EXPECT_FALSE(SCL->isIn(*FooAlias));
-  EXPECT_FALSE(SCL->isIn(*BarAlias));
-
-  SCL.reset(makeSpecialCaseList("global:bar\n"));
-  EXPECT_FALSE(SCL->isIn(*FooAlias));
-  EXPECT_FALSE(SCL->isIn(*BarAlias));
-
-  SCL.reset(makeSpecialCaseList("global:fooalias\n"));
-  EXPECT_FALSE(SCL->isIn(*FooAlias));
-  EXPECT_FALSE(SCL->isIn(*BarAlias));
-
-  SCL.reset(makeSpecialCaseList("fun:fooalias\n"));
-  EXPECT_TRUE(SCL->isIn(*FooAlias));
-  EXPECT_FALSE(SCL->isIn(*BarAlias));
-
-  SCL.reset(makeSpecialCaseList("global:baralias=init\n"));
-  EXPECT_FALSE(SCL->isIn(*FooAlias, "init"));
-  EXPECT_TRUE(SCL->isIn(*BarAlias, "init"));
-
-  SCL.reset(makeSpecialCaseList("type:t=init\n"));
-  EXPECT_FALSE(SCL->isIn(*FooAlias, "init"));
-  EXPECT_TRUE(SCL->isIn(*BarAlias, "init"));
-
-  SCL.reset(makeSpecialCaseList("fun:baralias=init\n"));
-  EXPECT_FALSE(SCL->isIn(*FooAlias, "init"));
-  EXPECT_FALSE(SCL->isIn(*BarAlias, "init"));
-}
-
-TEST_F(SpecialCaseListTest, Substring) {
-  Module M("othello", Ctx);
-  Function *F = makeFunction("tomfoolery", M);
-  GlobalVariable *GV = makeGlobal("bartender", "t", M);
-  GlobalAlias *GA1 = makeAlias("buffoonery", F);
-  GlobalAlias *GA2 = makeAlias("foobar", GV);
-
-  std::unique_ptr<SpecialCaseList> SCL(makeSpecialCaseList("src:hello\n"
-                                                           "fun:foo\n"
-                                                           "global:bar\n"));
-  EXPECT_FALSE(SCL->isIn(M));
-  EXPECT_FALSE(SCL->isIn(*F));
-  EXPECT_FALSE(SCL->isIn(*GV));
-  EXPECT_FALSE(SCL->isIn(*GA1));
-  EXPECT_FALSE(SCL->isIn(*GA2));
-
-  SCL.reset(makeSpecialCaseList("fun:*foo*\n"));
-  EXPECT_TRUE(SCL->isIn(*F));
-  EXPECT_TRUE(SCL->isIn(*GA1));
-}
-
-TEST_F(SpecialCaseListTest, InvalidSpecialCaseList) {
-  std::string Error;
-  EXPECT_EQ(nullptr, makeSpecialCaseList("badline", Error));
-  EXPECT_EQ("Malformed line 1: 'badline'", Error);
-  EXPECT_EQ(nullptr, makeSpecialCaseList("src:bad[a-", Error));
-  EXPECT_EQ("Malformed regex in line 1: 'bad[a-': invalid character range",
-            Error);
-  EXPECT_EQ(nullptr, makeSpecialCaseList("src:a.c\n"
-                                   "fun:fun(a\n",
-                                   Error));
-  EXPECT_EQ("Malformed regex in line 2: 'fun(a': parentheses not balanced",
-            Error);
-  EXPECT_EQ(nullptr, SpecialCaseList::create("unexisting", Error));
-  EXPECT_EQ(0U, Error.find("Can't open file 'unexisting':"));
-}
-
-TEST_F(SpecialCaseListTest, EmptySpecialCaseList) {
-  std::unique_ptr<SpecialCaseList> SCL(makeSpecialCaseList(""));
-  Module M("foo", Ctx);
-  EXPECT_FALSE(SCL->isIn(M));
-}
-
-}