[llvm] [Pass] Add some missing passes (PR #77600)

[via llvm-commits]

https://github.com/paperchalice created https://github.com/llvm/llvm-project/pull/77600

Found them when printing the codegen ir pipeline.

>From 526868609da40efc7cd67f83eb71257f0a2a56b4 Mon Sep 17 00:00:00 2001
From: PaperChalice <liujunchang97 at outlook.com>
Date: Wed, 10 Jan 2024 21:08:33 +0800
Subject: [PATCH] [Pass] Add some missing passes

---
 llvm/lib/Passes/PassBuilder.cpp  | 2 ++
 llvm/lib/Passes/PassRegistry.def | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp
index bfc97d5464c046..b1b1531e28aede 100644
--- a/llvm/lib/Passes/PassBuilder.cpp
+++ b/llvm/lib/Passes/PassBuilder.cpp
@@ -87,12 +87,14 @@
 #include "llvm/CodeGen/InterleavedLoadCombine.h"
 #include "llvm/CodeGen/JMCInstrumenter.h"
 #include "llvm/CodeGen/LowerEmuTLS.h"
+#include "llvm/CodeGen/PreISelIntrinsicLowering.h"
 #include "llvm/CodeGen/SafeStack.h"
 #include "llvm/CodeGen/SelectOptimize.h"
 #include "llvm/CodeGen/ShadowStackGCLowering.h"
 #include "llvm/CodeGen/SjLjEHPrepare.h"
 #include "llvm/CodeGen/StackProtector.h"
 #include "llvm/CodeGen/TypePromotion.h"
+#include "llvm/CodeGen/UnreachableBlockElim.h"
 #include "llvm/CodeGen/WasmEHPrepare.h"
 #include "llvm/CodeGen/WinEHPrepare.h"
 #include "llvm/IR/DebugInfo.h"
diff --git a/llvm/lib/Passes/PassRegistry.def b/llvm/lib/Passes/PassRegistry.def
index fbaca001d1fec5..72113bb346e486 100644
--- a/llvm/lib/Passes/PassRegistry.def
+++ b/llvm/lib/Passes/PassRegistry.def
@@ -103,6 +103,7 @@ MODULE_PASS("pgo-icall-prom", PGOIndirectCallPromotion())
 MODULE_PASS("pgo-instr-gen", PGOInstrumentationGen())
 MODULE_PASS("pgo-instr-use", PGOInstrumentationUse())
 MODULE_PASS("poison-checking", PoisonCheckingPass())
+MODULE_PASS("pre-isel-intrinsic-lowering", PreISelIntrinsicLoweringPass(*TM))
 MODULE_PASS("print", PrintModulePass(dbgs()))
 MODULE_PASS("print-callgraph", CallGraphPrinterPass(dbgs()))
 MODULE_PASS("print-callgraph-sccs", CallGraphSCCsPrinterPass(dbgs()))
@@ -423,10 +424,11 @@ FUNCTION_PASS("structurizecfg", StructurizeCFGPass())
 FUNCTION_PASS("tailcallelim", TailCallElimPass())
 FUNCTION_PASS("tlshoist", TLSVariableHoistPass())
 FUNCTION_PASS("transform-warning", WarnMissedTransformationsPass())
-FUNCTION_PASS("trigger-verifier-error", TriggerVerifierErrorPass())  
+FUNCTION_PASS("trigger-verifier-error", TriggerVerifierErrorPass())
 FUNCTION_PASS("tsan", ThreadSanitizerPass())
 FUNCTION_PASS("typepromotion", TypePromotionPass(TM))
 FUNCTION_PASS("unify-loop-exits", UnifyLoopExitsPass())
+FUNCTION_PASS("unreachable-block-elim", UnreachableBlockElimPass())
 FUNCTION_PASS("vector-combine", VectorCombinePass())
 FUNCTION_PASS("verify", VerifierPass())
 FUNCTION_PASS("verify<domtree>", DominatorTreeVerifierPass())