Revert r356511 "[TailCallElim] Add tailcall elimination pass to LTO pipelines"

Due to buildbot failures (LLD tests).

llvm-svn: 356516

2 files changed, 0 insertions, 8 deletions

diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp
index ba0d6c2bd68..2baff899010 100644
--- a/llvm/lib/Passes/PassBuilder.cpp
+++ b/llvm/lib/Passes/PassBuilder.cpp
@@ -1185,10 +1185,6 @@ PassBuilder::buildLTODefaultPipeline(OptimizationLevel Level, bool DebugLogging,
   // Break up allocas
   FPM.addPass(SROA());
 
-  // LTO provides additional opportunities for tailcall elimination due to
-  // link-time inlining, and visibility of nocapture attribute.
-  FPM.addPass(TailCallElimPass());
-
   // Run a few AA driver optimizations here and now to cleanup the code.
   MPM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
 
diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
index 9e241aa335a..0505135673b 100644
--- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -896,10 +896,6 @@ void PassManagerBuilder::addLTOOptimizationPasses(legacy::PassManagerBase &PM) {
   // Break up allocas
   PM.add(createSROAPass());
 
-  // LTO provides additional opportunities for tailcall elimination due to
-  // link-time inlining, and visibility of nocapture attribute.
-  PM.add(createTailCallEliminationPass());
-
   // Run a few AA driven optimizations here and now, to cleanup the code.
   PM.add(createPostOrderFunctionAttrsLegacyPass()); // Add nocapture.
   PM.add(createGlobalsAAWrapperPass()); // IP alias analysis.