Revert "[Codegen][ReplaceWithVecLib] add pass to replace vector intrinsics with calls to vector library"

This reverts commit 2303e93.
Investigating bot failures.

Author: rotateright

llvm/include/llvm/CodeGen/CodeGenPassBuilder.h

@@ -29,7 +29,6 @@
 #include "llvm/CodeGen/MachineModuleInfo.h"
 #include "llvm/CodeGen/MachinePassManager.h"
 #include "llvm/CodeGen/PreISelIntrinsicLowering.h"
-#include "llvm/CodeGen/ReplaceWithVeclib.h"
 #include "llvm/CodeGen/UnreachableBlockElim.h"
 #include "llvm/IR/IRPrintingPasses.h"
 #include "llvm/IR/PassManager.h"
@@ -651,12 +650,6 @@ void CodeGenPassBuilder<Derived>::addIRPasses(AddIRPass &addPass) const {
   if (getOptLevel() != CodeGenOpt::None && !Opt.DisableConstantHoisting)
     addPass(ConstantHoistingPass());
 
-  if (getOptLevel() != CodeGenOpt::None) {
-    // Replace calls to LLVM intrinsics (e.g., exp, log) operating on vector
-    // operands with calls to the corresponding functions in a vector library.
-    addPass(ReplaceWithVeclib());
-  }
-
   if (getOptLevel() != CodeGenOpt::None && !Opt.DisablePartialLibcallInlining)
     addPass(PartiallyInlineLibCallsPass());
 

llvm/include/llvm/CodeGen/MachinePassRegistry.def

@@ -39,7 +39,6 @@ FUNCTION_PASS("mergeicmps", MergeICmpsPass, ())
 FUNCTION_PASS("lower-constant-intrinsics", LowerConstantIntrinsicsPass, ())
 FUNCTION_PASS("unreachableblockelim", UnreachableBlockElimPass, ())
 FUNCTION_PASS("consthoist", ConstantHoistingPass, ())
-FUNCTION_PASS("replace-with-veclib", ReplaceWithVeclib, ())
 FUNCTION_PASS("partially-inline-libcalls", PartiallyInlineLibCallsPass, ())
 FUNCTION_PASS("ee-instrument", EntryExitInstrumenterPass, (false))
 FUNCTION_PASS("post-inline-ee-instrument", EntryExitInstrumenterPass, (true))

llvm/include/llvm/CodeGen/Passes.h

@@ -448,10 +448,6 @@ namespace llvm {
   /// shuffles.
   FunctionPass *createExpandReductionsPass();
 
-  // This pass replaces intrinsics operating on vector operands with calls to
-  // the corresponding function in a vector library (e.g., SVML, libmvec).
-  FunctionPass *createReplaceWithVeclibLegacyPass();
-
   // This pass expands memcmp() to load/stores.
   FunctionPass *createExpandMemCmpPass();
 

llvm/include/llvm/CodeGen/ReplaceWithVeclib.h

@@ -380,7 +380,6 @@ void initializeRegionPrinterPass(PassRegistry&);
 void initializeRegionViewerPass(PassRegistry&);
 void initializeRegisterCoalescerPass(PassRegistry&);
 void initializeRenameIndependentSubregsPass(PassRegistry&);
-void initializeReplaceWithVeclibLegacyPass(PassRegistry &);
 void initializeResetMachineFunctionPass(PassRegistry&);
 void initializeReversePostOrderFunctionAttrsLegacyPassPass(PassRegistry&);
 void initializeRewriteStatepointsForGCLegacyPassPass(PassRegistry &);

llvm/include/llvm/InitializePasses.h

@@ -147,7 +147,6 @@ add_llvm_component_library(LLVMCodeGen
   RegisterUsageInfo.cpp
   RegUsageInfoCollector.cpp
   RegUsageInfoPropagate.cpp
-  ReplaceWithVeclib.cpp
   ResetMachineFunctionPass.cpp
   SafeStack.cpp
   SafeStackLayout.cpp

llvm/lib/CodeGen/CMakeLists.txt

@@ -858,9 +858,6 @@ void TargetPassConfig::addIRPasses() {
   if (getOptLevel() != CodeGenOpt::None && !DisableConstantHoisting)
     addPass(createConstantHoistingPass());
 
-  if (getOptLevel() != CodeGenOpt::None)
-    addPass(createReplaceWithVeclibLegacyPass());
-
   if (getOptLevel() != CodeGenOpt::None && !DisablePartialLibcallInlining)
     addPass(createPartiallyInlineLibCallsPass());
 

llvm/lib/CodeGen/ReplaceWithVeclib.cpp

@@ -54,7 +54,6 @@
 ; CHECK-NEXT:       Branch Probability Analysis
 ; CHECK-NEXT:       Block Frequency Analysis
 ; CHECK-NEXT:       Constant Hoisting
-; CHECK-NEXT:       Replace intrinsics with calls to vector library
 ; CHECK-NEXT:       Partially inline calls to library functions
 ; CHECK-NEXT:       Instrument function entry/exit with calls to e.g. mcount() (post inlining)
 ; CHECK-NEXT:       Scalarize Masked Memory Intrinsics

llvm/lib/CodeGen/TargetPassConfig.cpp

@@ -34,7 +34,6 @@
 ; CHECK-NEXT:      Branch Probability Analysis
 ; CHECK-NEXT:      Block Frequency Analysis
 ; CHECK-NEXT:      Constant Hoisting
-; CHECK-NEXT:      Replace intrinsics with calls to vector library
 ; CHECK-NEXT:      Partially inline calls to library functions
 ; CHECK-NEXT:      Instrument function entry/exit with calls to e.g. mcount() (post inlining)
 ; CHECK-NEXT:      Scalarize Masked Memory Intrinsics