diff --git a/llvm/include/llvm/CodeGen/CodeGenPassBuilder.h b/llvm/include/llvm/CodeGen/CodeGenPassBuilder.h
--- a/llvm/include/llvm/CodeGen/CodeGenPassBuilder.h
+++ b/llvm/include/llvm/CodeGen/CodeGenPassBuilder.h
@@ -668,6 +668,10 @@
 
   // Expand reduction intrinsics into shuffle sequences if the target wants to.
   addPass(ExpandReductionsPass());
+
+  // Convert conditional moves to conditional jumps when profitable.
+  if (getOptLevel() != CodeGenOpt::None && !Opt.DisableSelectOptimize)
+    addPass(SelectOptimizePass());
 }
 
 /// Turn exception handling constructs into something the code generators can
diff --git a/llvm/include/llvm/CodeGen/MachinePassRegistry.def b/llvm/include/llvm/CodeGen/MachinePassRegistry.def
--- a/llvm/include/llvm/CodeGen/MachinePassRegistry.def
+++ b/llvm/include/llvm/CodeGen/MachinePassRegistry.def
@@ -119,6 +119,7 @@
 DUMMY_FUNCTION_PASS("cfguard-dispatch", CFGuardDispatchPass, ())
 DUMMY_FUNCTION_PASS("cfguard-check", CFGuardCheckPass, ())
 DUMMY_FUNCTION_PASS("gc-info-printer", GCInfoPrinterPass, ())
+DUMMY_FUNCTION_PASS("select-optimize", SelectOptimizePass, ())
 #undef DUMMY_FUNCTION_PASS
 
 #ifndef DUMMY_MODULE_PASS
diff --git a/llvm/include/llvm/CodeGen/Passes.h b/llvm/include/llvm/CodeGen/Passes.h
--- a/llvm/include/llvm/CodeGen/Passes.h
+++ b/llvm/include/llvm/CodeGen/Passes.h
@@ -554,6 +554,10 @@
   /// When learning an eviction policy, extract score(reward) information,
   /// otherwise this does nothing
   FunctionPass *createRegAllocScoringPass();
+
+  /// This pass converts conditional moves to conditional jumps when profitable.
+  FunctionPass *createSelectOptimizePass();
+
 } // End llvm namespace
 
 #endif
diff --git a/llvm/include/llvm/InitializePasses.h b/llvm/include/llvm/InitializePasses.h
--- a/llvm/include/llvm/InitializePasses.h
+++ b/llvm/include/llvm/InitializePasses.h
@@ -405,6 +405,7 @@
 void initializeSafeStackLegacyPassPass(PassRegistry&);
 void initializeSafepointIRVerifierPass(PassRegistry&);
 void initializeSampleProfileLoaderLegacyPassPass(PassRegistry&);
+void initializeSelectOptimizePass(PassRegistry &);
 void initializeModuleSanitizerCoverageLegacyPassPass(PassRegistry &);
 void initializeScalarEvolutionWrapperPassPass(PassRegistry&);
 void initializeScalarizeMaskedMemIntrinLegacyPassPass(PassRegistry &);
diff --git a/llvm/include/llvm/LinkAllPasses.h b/llvm/include/llvm/LinkAllPasses.h
--- a/llvm/include/llvm/LinkAllPasses.h
+++ b/llvm/include/llvm/LinkAllPasses.h
@@ -236,6 +236,7 @@
       (void) llvm::createUnifyLoopExitsPass();
       (void) llvm::createFixIrreduciblePass();
       (void)llvm::createFunctionSpecializationPass();
+      (void)llvm::createSelectOptimizePass();
 
       (void)new llvm::IntervalPartition();
       (void)new llvm::ScalarEvolutionWrapperPass();
diff --git a/llvm/include/llvm/Target/CGPassBuilderOption.h b/llvm/include/llvm/Target/CGPassBuilderOption.h
--- a/llvm/include/llvm/Target/CGPassBuilderOption.h
+++ b/llvm/include/llvm/Target/CGPassBuilderOption.h
@@ -42,6 +42,7 @@
   bool DisableMergeICmps = false;
   bool DisablePartialLibcallInlining = false;
   bool DisableConstantHoisting = false;
+  bool DisableSelectOptimize = false;
   bool PrintISelInput = false;
   bool PrintGCInfo = false;
   bool RequiresCodeGenSCCOrder = false;
diff --git a/llvm/lib/CodeGen/CMakeLists.txt b/llvm/lib/CodeGen/CMakeLists.txt
--- a/llvm/lib/CodeGen/CMakeLists.txt
+++ b/llvm/lib/CodeGen/CMakeLists.txt
@@ -193,6 +193,7 @@
   ScheduleDAGInstrs.cpp
   ScheduleDAGPrinter.cpp
   ScoreboardHazardRecognizer.cpp
+  SelectOptimize.cpp
   ShadowStackGCLowering.cpp
   ShrinkWrap.cpp
   SjLjEHPrepare.cpp
diff --git a/llvm/lib/CodeGen/CodeGen.cpp b/llvm/lib/CodeGen/CodeGen.cpp
--- a/llvm/lib/CodeGen/CodeGen.cpp
+++ b/llvm/lib/CodeGen/CodeGen.cpp
@@ -104,6 +104,7 @@
   initializeRemoveRedundantDebugValuesPass(Registry);
   initializeRenameIndependentSubregsPass(Registry);
   initializeSafeStackLegacyPassPass(Registry);
+  initializeSelectOptimizePass(Registry);
   initializeShadowStackGCLoweringPass(Registry);
   initializeShrinkWrapPass(Registry);
   initializeSjLjEHPreparePass(Registry);
diff --git a/llvm/lib/CodeGen/SelectOptimize.cpp b/llvm/lib/CodeGen/SelectOptimize.cpp
new file mode 100644
--- /dev/null
+++ b/llvm/lib/CodeGen/SelectOptimize.cpp
@@ -0,0 +1,43 @@
+//===--- SelectOptimize.cpp - Convert select to branches if profitable ---===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This pass converts selects to conditional jumps when profitable.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CodeGen/Passes.h"
+#include "llvm/IR/Function.h"
+#include "llvm/InitializePasses.h"
+#include "llvm/Pass.h"
+
+using namespace llvm;
+
+namespace {
+
+class SelectOptimize : public FunctionPass {
+public:
+  static char ID;
+  SelectOptimize() : FunctionPass(ID) {
+    initializeSelectOptimizePass(*PassRegistry::getPassRegistry());
+  }
+
+  bool runOnFunction(Function &F) override;
+
+  void getAnalysisUsage(AnalysisUsage &AU) const override {}
+};
+} // namespace
+
+char SelectOptimize::ID = 0;
+INITIALIZE_PASS(SelectOptimize, "select-optimize", "Optimize selects", false,
+                false)
+
+FunctionPass *llvm::createSelectOptimizePass() { return new SelectOptimize(); }
+
+bool SelectOptimize::runOnFunction(Function &F) {
+  llvm_unreachable("Unimplemented");
+}
diff --git a/llvm/lib/CodeGen/TargetPassConfig.cpp b/llvm/lib/CodeGen/TargetPassConfig.cpp
--- a/llvm/lib/CodeGen/TargetPassConfig.cpp
+++ b/llvm/lib/CodeGen/TargetPassConfig.cpp
@@ -256,6 +256,11 @@
     "disable-expand-reductions", cl::init(false), cl::Hidden,
     cl::desc("Disable the expand reduction intrinsics pass from running"));
 
+/// Disable the select optimization pass.
+static cl::opt<bool> DisableSelectOptimize(
+    "disable-select-optimize", cl::init(true), cl::Hidden,
+    cl::desc("Disable the select-optimization pass from running"));
+
 /// Allow standard passes to be disabled by command line options. This supports
 /// simple binary flags that either suppress the pass or do nothing.
 /// i.e. -disable-mypass=false has no effect.
@@ -490,6 +495,7 @@
   SET_BOOLEAN_OPTION(DisableConstantHoisting)
   SET_BOOLEAN_OPTION(DisableCGP)
   SET_BOOLEAN_OPTION(DisablePartialLibcallInlining)
+  SET_BOOLEAN_OPTION(DisableSelectOptimize)
   SET_BOOLEAN_OPTION(PrintLSR)
   SET_BOOLEAN_OPTION(PrintISelInput)
   SET_BOOLEAN_OPTION(PrintGCInfo)
@@ -922,6 +928,10 @@
   // Allow disabling it for testing purposes.
   if (!DisableExpandReductions)
     addPass(createExpandReductionsPass());
+
+  // Convert conditional moves to conditional jumps when profitable.
+  if (getOptLevel() != CodeGenOpt::None && !DisableSelectOptimize)
+    addPass(createSelectOptimizePass());
 }
 
 /// Turn exception handling constructs into something the code generators can
diff --git a/llvm/tools/opt/opt.cpp b/llvm/tools/opt/opt.cpp
--- a/llvm/tools/opt/opt.cpp
+++ b/llvm/tools/opt/opt.cpp
@@ -550,6 +550,7 @@
   // supported.
   initializeExpandMemCmpPassPass(Registry);
   initializeScalarizeMaskedMemIntrinLegacyPassPass(Registry);
+  initializeSelectOptimizePass(Registry);
   initializeCodeGenPreparePass(Registry);
   initializeAtomicExpandPass(Registry);
   initializeRewriteSymbolsLegacyPassPass(Registry);