[llvm] annotate interfaces in llvm/Analysis for DLL export (#136623)

## Purpose

This patch is one in a series of code-mods that annotate LLVM’s public
interface for export. This patch annotates the `llvm/Analysis` library.
These annotations currently have no meaningful impact on the LLVM build;
however, they are a prerequisite to support an LLVM Windows DLL (shared
library) build.

## Background

This effort is tracked in #109483. Additional context is provided in
[this
discourse](https://discourse.llvm.org/t/psa-annotating-llvm-public-interface/85307),
and documentation for `LLVM_ABI` and related annotations is found in the
LLVM repo
[here](https://github.com/llvm/llvm-project/blob/main/llvm/docs/InterfaceExportAnnotations.rst).

The bulk of these changes were generated automatically using the
[Interface Definition Scanner (IDS)](https://github.com/compnerd/ids)
tool, followed formatting with `git clang-format`.

The following manual adjustments were also applied after running IDS on
Linux:
- Add `#include "llvm/Support/Compiler.h"` to files where it was not
auto-added by IDS due to no pre-existing block of include statements.
- Add `LLVM_TEMPLATE_ABI` and `LLVM_EXPORT_TEMPLATE` to exported
instantiated templates
- Add `LLVM_ABI` to a subset of private class methods and fields that
require export
- Add `LLVM_ABI` to a small number of symbols that require export but
are not declared in headers

## Validation

Local builds and tests to validate cross-platform compatibility. This
included llvm, clang, and lldb on the following configurations:

- Windows with MSVC
- Windows with Clang
- Linux with GCC
- Linux with Clang
- Darwin with Clang

5 files changed, 17 insertions, 12 deletions

diff --git a/llvm/unittests/Analysis/AssumeBundleQueriesTest.cpp b/llvm/unittests/Analysis/AssumeBundleQueriesTest.cpp
index 43c8b36..5fd2ecc 100644
--- a/llvm/unittests/Analysis/AssumeBundleQueriesTest.cpp
+++ b/llvm/unittests/Analysis/AssumeBundleQueriesTest.cpp
@@ -13,6 +13,7 @@
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/Regex.h"
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Transforms/Utils/AssumeBundleBuilder.h"
@@ -22,7 +23,7 @@
 using namespace llvm;
 
 namespace llvm {
-extern cl::opt<bool> ShouldPreserveAllAttributes;
+LLVM_ABI extern cl::opt<bool> ShouldPreserveAllAttributes;
 } // namespace llvm
 
 static void RunTest(
diff --git a/llvm/unittests/Analysis/FunctionPropertiesAnalysisTest.cpp b/llvm/unittests/Analysis/FunctionPropertiesAnalysisTest.cpp
index 574ad7c..0720d93 100644
--- a/llvm/unittests/Analysis/FunctionPropertiesAnalysisTest.cpp
+++ b/llvm/unittests/Analysis/FunctionPropertiesAnalysisTest.cpp
@@ -17,6 +17,7 @@
 #include "llvm/IR/PassManager.h"
 #include "llvm/Passes/PassBuilder.h"
 #include "llvm/Passes/StandardInstrumentations.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Transforms/Utils/Cloning.h"
 #include "gtest/gtest.h"
@@ -25,9 +26,9 @@
 using namespace llvm;
 
 namespace llvm {
-extern cl::opt<bool> EnableDetailedFunctionProperties;
-extern cl::opt<bool> BigBasicBlockInstructionThreshold;
-extern cl::opt<bool> MediumBasicBlockInstrutionThreshold;
+LLVM_ABI extern cl::opt<bool> EnableDetailedFunctionProperties;
+LLVM_ABI extern cl::opt<bool> BigBasicBlockInstructionThreshold;
+LLVM_ABI extern cl::opt<bool> MediumBasicBlockInstrutionThreshold;
 } // namespace llvm
 
 namespace {
diff --git a/llvm/unittests/Analysis/IRSimilarityIdentifierTest.cpp b/llvm/unittests/Analysis/IRSimilarityIdentifierTest.cpp
index b7ef23f..9edb21f 100644
--- a/llvm/unittests/Analysis/IRSimilarityIdentifierTest.cpp
+++ b/llvm/unittests/Analysis/IRSimilarityIdentifierTest.cpp
@@ -17,14 +17,15 @@
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/Allocator.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/SourceMgr.h"
 #include "gtest/gtest.h"
 
 using namespace llvm;
 using namespace IRSimilarity;
 
-extern llvm::cl::opt<bool> UseNewDbgInfoFormat;
-extern cl::opt<bool> UseNewDbgInfoFormat;
+LLVM_ABI extern llvm::cl::opt<bool> UseNewDbgInfoFormat;
+LLVM_ABI extern cl::opt<bool> UseNewDbgInfoFormat;
 
 static std::unique_ptr<Module> makeLLVMModule(LLVMContext &Context,
                                               StringRef ModuleStr) {
diff --git a/llvm/unittests/Analysis/MemoryProfileInfoTest.cpp b/llvm/unittests/Analysis/MemoryProfileInfoTest.cpp
index 170dca0..ee2342d 100644
--- a/llvm/unittests/Analysis/MemoryProfileInfoTest.cpp
+++ b/llvm/unittests/Analysis/MemoryProfileInfoTest.cpp
@@ -23,11 +23,12 @@
 using namespace llvm;
 using namespace llvm::memprof;
 
-extern cl::opt<float> MemProfLifetimeAccessDensityColdThreshold;
-extern cl::opt<unsigned> MemProfAveLifetimeColdThreshold;
-extern cl::opt<unsigned> MemProfMinAveLifetimeAccessDensityHotThreshold;
-extern cl::opt<bool> MemProfUseHotHints;
-extern cl::opt<bool> MemProfKeepAllNotColdContexts;
+LLVM_ABI extern cl::opt<float> MemProfLifetimeAccessDensityColdThreshold;
+LLVM_ABI extern cl::opt<unsigned> MemProfAveLifetimeColdThreshold;
+LLVM_ABI extern cl::opt<unsigned>
+    MemProfMinAveLifetimeAccessDensityHotThreshold;
+LLVM_ABI extern cl::opt<bool> MemProfUseHotHints;
+LLVM_ABI extern cl::opt<bool> MemProfKeepAllNotColdContexts;
 
 namespace {
 
diff --git a/llvm/unittests/Analysis/ProfileSummaryInfoTest.cpp b/llvm/unittests/Analysis/ProfileSummaryInfoTest.cpp
index 519389d..45dc50e 100644
--- a/llvm/unittests/Analysis/ProfileSummaryInfoTest.cpp
+++ b/llvm/unittests/Analysis/ProfileSummaryInfoTest.cpp
@@ -18,13 +18,14 @@
 #include "llvm/IR/MDBuilder.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/FormatVariadic.h"
 #include "llvm/Support/SourceMgr.h"
 #include "llvm/Support/raw_ostream.h"
 #include "gtest/gtest.h"
 
-extern llvm::cl::opt<bool> ScalePartialSampleProfileWorkingSetSize;
+LLVM_ABI extern llvm::cl::opt<bool> ScalePartialSampleProfileWorkingSetSize;
 
 namespace llvm {
 namespace {