Revert "[LLVM] Add flags to crash the opt/codegen pipeline" (llvm#200977)

Reverts llvm#200967

Test failing on some buildbots:
https://lab.llvm.org/buildbot/#/builders/11/builds/41237

Author: aeubanks

llvm/include/llvm/Transforms/Utils/TriggerCrashPass.h

@@ -50,7 +50,6 @@
 #include "llvm/Transforms/ObjCARC.h"
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/Transforms/Utils.h"
-#include "llvm/Transforms/Utils/TriggerCrashPass.h"
 #include <cassert>
 #include <optional>
 #include <string>
@@ -100,11 +99,6 @@ static cl::opt<bool> DisableConstantHoisting("disable-constant-hoisting",
     cl::Hidden, cl::desc("Disable ConstantHoisting"));
 static cl::opt<bool> DisableCGP("disable-cgp", cl::Hidden,
     cl::desc("Disable Codegen Prepare"));
-
-static cl::opt<bool>
-    TriggerCrash("codegen-pipeline-trigger-crash", cl::init(false), cl::Hidden,
-                 cl::desc("Trigger crash in codegen pipeline"));
-
 static cl::opt<bool> DisableCopyProp("disable-copyprop", cl::Hidden,
     cl::desc("Disable Copy Propagation pass"));
 static cl::opt<bool> DisablePartialLibcallInlining("disable-partial-libcall-inlining",
@@ -1092,10 +1086,6 @@ bool TargetPassConfig::addISelPasses() {
   addPass(createPreISelIntrinsicLoweringPass());
   addPass(createExpandIRInstsPass(getOptLevel()));
   addIRPasses();
-
-  if (TriggerCrash)
-    addPass(createTriggerCrashFunctionPass());
-
   addCodeGenPrepare();
   addPassesToHandleExceptions();
   addISelPrepare();

llvm/lib/CodeGen/TargetPassConfig.cpp

@@ -386,7 +386,6 @@
 #include "llvm/Transforms/Utils/StripGCRelocates.h"
 #include "llvm/Transforms/Utils/StripNonLineTableDebugInfo.h"
 #include "llvm/Transforms/Utils/SymbolRewriter.h"
-#include "llvm/Transforms/Utils/TriggerCrashPass.h"
 #include "llvm/Transforms/Utils/UnifyFunctionExitNodes.h"
 #include "llvm/Transforms/Utils/UnifyLoopExits.h"
 #include "llvm/Transforms/Vectorize/LoadStoreVectorizer.h"
@@ -424,6 +423,28 @@ bool applyMIRDebugify(DIBuilder &DIB, Function &F, ModuleAnalysisManager &AM) {
       });
 }
 
+// Passes for testing crashes.
+// DO NOT USE THIS EXCEPT FOR TESTING!
+class TriggerCrashModulePass
+    : public OptionalPassInfoMixin<TriggerCrashModulePass> {
+public:
+  PreservedAnalyses run(Module &, ModuleAnalysisManager &) {
+    abort();
+    return PreservedAnalyses::all();
+  }
+  static StringRef name() { return "TriggerCrashModulePass"; }
+};
+
+class TriggerCrashFunctionPass
+    : public OptionalPassInfoMixin<TriggerCrashFunctionPass> {
+public:
+  PreservedAnalyses run(Function &, FunctionAnalysisManager &) {
+    abort();
+    return PreservedAnalyses::all();
+  }
+  static StringRef name() { return "TriggerCrashFunctionPass"; }
+};
+
 // A pass for testing message reporting of -verify-each failures.
 // DO NOT USE THIS EXCEPT FOR TESTING!
 class TriggerVerifierErrorPass

llvm/lib/Passes/PassBuilder.cpp

@@ -151,7 +151,6 @@
 #include "llvm/Transforms/Utils/NameAnonGlobals.h"
 #include "llvm/Transforms/Utils/RelLookupTableConverter.h"
 #include "llvm/Transforms/Utils/SimplifyCFGOptions.h"
-#include "llvm/Transforms/Utils/TriggerCrashPass.h"
 #include "llvm/Transforms/Vectorize/LoopVectorize.h"
 #include "llvm/Transforms/Vectorize/SLPVectorizer.h"
 #include "llvm/Transforms/Vectorize/VectorCombine.h"
@@ -197,10 +196,6 @@ static cl::opt<bool> EnablePostPGOLoopRotation(
     "enable-post-pgo-loop-rotation", cl::init(true), cl::Hidden,
     cl::desc("Run the loop rotation transformation after PGO instrumentation"));
 
-static cl::opt<bool>
-    TriggerCrash("opt-pipeline-trigger-crash", cl::init(false), cl::Hidden,
-                 cl::desc("Trigger crash in optimization pipeline"));
-
 static cl::opt<bool> EnableGlobalAnalyses(
     "enable-global-analyses", cl::init(true), cl::Hidden,
     cl::desc("Enable inter-procedural analyses"));
@@ -1781,9 +1776,6 @@ PassBuilder::buildPerModuleDefaultPipeline(OptimizationLevel Level,
   // Force any function attributes we want the rest of the pipeline to observe.
   MPM.addPass(ForceFunctionAttrsPass());
 
-  if (TriggerCrash)
-    MPM.addPass(createModuleToFunctionPassAdaptor(TriggerCrashFunctionPass()));
-
   if (PGOOpt && PGOOpt->DebugInfoForProfiling)
     MPM.addPass(createModuleToFunctionPassAdaptor(AddDiscriminatorsPass()));
 

llvm/lib/Passes/PassBuilderPipelines.cpp

@@ -91,7 +91,6 @@ add_llvm_component_library(LLVMTransformUtils
   SplitModuleByCategory.cpp
   StripNonLineTableDebugInfo.cpp
   SymbolRewriter.cpp
-  TriggerCrashPass.cpp
   UnifyFunctionExitNodes.cpp
   UnifyLoopExits.cpp
   Utils.cpp

llvm/lib/Transforms/Utils/CMakeLists.txt

@@ -99,7 +99,6 @@ static_library("Utils") {
     "StripGCRelocates.cpp",
     "StripNonLineTableDebugInfo.cpp",
     "SymbolRewriter.cpp",
-    "TriggerCrashPass.cpp",
     "UnifyFunctionExitNodes.cpp",
     "UnifyLoopExits.cpp",
     "Utils.cpp",