[llvm] [LLVM] Fix missing includes for function declarations that will be needed for explicit symbol visibility (PR #103900)

[Thomas Fransham via llvm-commits]

https://github.com/fsfod created https://github.com/llvm/llvm-project/pull/103900

In multiple source files function definitions never sees there declaration in a header because its never included causing linker errors when explicit symbol visibility macros\dllexport are added to the declarations.

Most of these were originally found by @tstellar in https://github.com/llvm/llvm-project/pull/67502

TargetRegistry.h is needed in MCExternalSymbolizer.cpp for createMCSymbolizer 
Analysis/Passes.h is needed in LazyValueInfo.cpp and RegionInfo.cpp for createLazyValueInfoPassin and createRegionInfoPass 
Transforms/Scalar.h is needed in SpeculativeExecution.cpp for createSpeculativeExecutionPass

>From 824af4f7ae2e79e0696e5da7e9015479f58c5610 Mon Sep 17 00:00:00 2001
From: Thomas Fransham <tfransham at gmail.com>
Date: Mon, 5 Aug 2024 05:26:14 +0100
Subject: [PATCH] [LLVM] Fix missing includes for function declarations that
 will be needed for explicit symbol visibility

In multiple source files function definitions never sees there declaration in a
header because its never included causing linker errors when explicit symbol visibility
macros are added to the declarations.

TargetRegistry.h is needed in MCExternalSymbolizer.cpp for createMCSymbolizer
Analysis/Passes.h is needed in LazyValueInfo.cpp and RegionInfo.cpp for createLazyValueInfoPassin and createRegionInfoPass
Transforms/Scalar.h is needed in SpeculativeExecution.cpp for createSpeculativeExecutionPass
---
 llvm/lib/Analysis/LazyValueInfo.cpp                 | 1 +
 llvm/lib/Analysis/RegionInfo.cpp                    | 1 +
 llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp | 1 +
 llvm/lib/Transforms/Scalar/SpeculativeExecution.cpp | 1 +
 4 files changed, 4 insertions(+)

diff --git a/llvm/lib/Analysis/LazyValueInfo.cpp b/llvm/lib/Analysis/LazyValueInfo.cpp
index 310a7eafc81500..47d3dac73083ee 100644
--- a/llvm/lib/Analysis/LazyValueInfo.cpp
+++ b/llvm/lib/Analysis/LazyValueInfo.cpp
@@ -17,6 +17,7 @@
 #include "llvm/Analysis/AssumptionCache.h"
 #include "llvm/Analysis/ConstantFolding.h"
 #include "llvm/Analysis/InstructionSimplify.h"
+#include "llvm/Analysis/Passes.h"
 #include "llvm/Analysis/TargetLibraryInfo.h"
 #include "llvm/Analysis/ValueLattice.h"
 #include "llvm/Analysis/ValueTracking.h"
diff --git a/llvm/lib/Analysis/RegionInfo.cpp b/llvm/lib/Analysis/RegionInfo.cpp
index 9be23a374eca5a..15257b4a9a926f 100644
--- a/llvm/lib/Analysis/RegionInfo.cpp
+++ b/llvm/lib/Analysis/RegionInfo.cpp
@@ -15,6 +15,7 @@
 #ifndef NDEBUG
 #include "llvm/Analysis/RegionPrinter.h"
 #endif
+#include "llvm/Analysis/Passes.h"
 #include "llvm/Analysis/RegionInfoImpl.h"
 #include "llvm/Config/llvm-config.h"
 #include "llvm/IR/Function.h"
diff --git a/llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp b/llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp
index e3f4cdd21557e2..52cf1ff1376d08 100644
--- a/llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp
+++ b/llvm/lib/MC/MCDisassembler/MCExternalSymbolizer.cpp
@@ -10,6 +10,7 @@
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCInst.h"
+#include "llvm/MC/TargetRegistry.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cstring>
 
diff --git a/llvm/lib/Transforms/Scalar/SpeculativeExecution.cpp b/llvm/lib/Transforms/Scalar/SpeculativeExecution.cpp
index ed9c1828ce06a2..6e1bb892f62018 100644
--- a/llvm/lib/Transforms/Scalar/SpeculativeExecution.cpp
+++ b/llvm/lib/Transforms/Scalar/SpeculativeExecution.cpp
@@ -71,6 +71,7 @@
 #include "llvm/InitializePasses.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Transforms/Scalar.h"
 
 using namespace llvm;