diff --git a/clang/include/clang/Basic/CodeGenOptions.def b/clang/include/clang/Basic/CodeGenOptions.def
--- a/clang/include/clang/Basic/CodeGenOptions.def
+++ b/clang/include/clang/Basic/CodeGenOptions.def
@@ -139,6 +139,9 @@
 VALUE_CODEGENOPT(PatchableFunctionEntryCount , 32, 0) ///< Number of NOPs at function entry
 VALUE_CODEGENOPT(PatchableFunctionEntryOffset , 32, 0)
 
+CODEGENOPT(HotPatch, 1, 0) ///< Supports the Microsoft /HOTPATCH flag and would
+                           ///< generate a 'patchable-function' attribute.
+
 CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled.
 CODEGENOPT(CallFEntry , 1, 0) ///< Set when -mfentry is enabled.
 CODEGENOPT(MNopMCount , 1, 0) ///< Set when -mnop-mcount is enabled.
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -2490,6 +2490,9 @@
 def fpatchable_function_entry_EQ : Joined<["-"], "fpatchable-function-entry=">, Group<f_Group>, Flags<[CC1Option]>,
   MetaVarName<"<N,M>">, HelpText<"Generate M NOPs before function entry and N-M NOPs after function entry">,
   MarshallingInfoInt<CodeGenOpts<"PatchableFunctionEntryCount">>;
+def fhotpatch : Flag<["-"], "fhotpatch">, Group<f_Group>, Flags<[CC1Option]>,
+  HelpText<"Ensure that all functions can be hotpatched at runtime">,
+  MarshallingInfoFlag<CodeGenOpts<"HotPatch">>;
 def fpcc_struct_return : Flag<["-"], "fpcc-struct-return">, Group<f_Group>, Flags<[CC1Option]>,
   HelpText<"Override the default ABI to return all structs on the stack">;
 def fpch_preprocess : Flag<["-"], "fpch-preprocess">, Group<f_Group>;
@@ -6114,6 +6117,8 @@
 def _SLASH_help : CLFlag<"help">, Alias<help>,
   HelpText<"Display available options">;
 def _SLASH_HELP : CLFlag<"HELP">, Alias<help>;
+def _SLASH_hotpatch : CLFlag<"hotpatch">, Alias<fhotpatch>,
+  HelpText<"Create hotpatchable image">;
 def _SLASH_I : CLJoinedOrSeparate<"I">,
   HelpText<"Add directory to include search path">, MetaVarName<"<dir>">,
   Alias<I>;
@@ -6470,7 +6475,6 @@
 def _SLASH_headerUnitAngle : CLJoinedOrSeparate<"headerUnit:angle">;
 def _SLASH_headerUnitQuote : CLJoinedOrSeparate<"headerUnit:quote">;
 def _SLASH_homeparams : CLFlag<"homeparams">;
-def _SLASH_hotpatch : CLFlag<"hotpatch">;
 def _SLASH_kernel : CLFlag<"kernel">;
 def _SLASH_LN : CLFlag<"LN">;
 def _SLASH_MP : CLJoined<"MP">;
diff --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -645,6 +645,7 @@
   Options.MCOptions.CommandLineArgs = CodeGenOpts.CommandLineArgs;
   Options.DebugStrictDwarf = CodeGenOpts.DebugStrictDwarf;
   Options.ObjectFilenameForDebug = CodeGenOpts.ObjectFilenameForDebug;
+  Options.Hotpatch = CodeGenOpts.HotPatch;
 
   return true;
 }
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp
--- a/clang/lib/CodeGen/CodeGenFunction.cpp
+++ b/clang/lib/CodeGen/CodeGenFunction.cpp
@@ -882,6 +882,8 @@
     if (Offset)
       Fn->addFnAttr("patchable-function-prefix", std::to_string(Offset));
   }
+  if (CGM.getCodeGenOpts().HotPatch)
+    Fn->addFnAttr("patchable-function", "prologue-short-redirect");
 
   // Add no-jump-tables value.
   if (CGM.getCodeGenOpts().NoUseJumpTables)
diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -5994,6 +5994,7 @@
           "-fpatchable-function-entry-offset=" + Twine(Offset)));
     }
   }
+  Args.AddLastArg(CmdArgs, options::OPT_fhotpatch);
 
   if (TC.SupportsProfiling()) {
     Args.AddLastArg(CmdArgs, options::OPT_pg);
diff --git a/clang/test/CodeGen/patchable-function-entry.c b/clang/test/CodeGen/patchable-function-entry.c
--- a/clang/test/CodeGen/patchable-function-entry.c
+++ b/clang/test/CodeGen/patchable-function-entry.c
@@ -1,5 +1,6 @@
 // RUN: %clang_cc1 -triple aarch64 -emit-llvm %s -o - | FileCheck %s
 // RUN: %clang_cc1 -triple x86_64 -emit-llvm %s -fpatchable-function-entry=1 -o - | FileCheck --check-prefixes=CHECK,OPT %s
+// RUN: %clang_cc1 -triple x86_64 -emit-llvm %s -fhotpatch -o - | FileCheck --check-prefixes=HOTPATCH %s
 
 // CHECK: define{{.*}} void @f0() #0
 __attribute__((patchable_function_entry(0))) void f0() {}
@@ -34,3 +35,7 @@
 // CHECK: attributes #2 = { {{.*}} "patchable-function-entry"="0" "patchable-function-prefix"="4"
 // CHECK: attributes #3 = { {{.*}} "patchable-function-entry"="3" "patchable-function-prefix"="2"
 // OPT:   attributes #4 = { {{.*}} "patchable-function-entry"="1"
+// HOTPATCH: attributes #0 = { {{.*}} "patchable-function"="prologue-short-redirect"
+// HOTPATCH: attributes #1 = { {{.*}} "patchable-function"="prologue-short-redirect"
+// HOTPATCH: attributes #2 = { {{.*}} "patchable-function"="prologue-short-redirect"
+// HOTPATCH: attributes #3 = { {{.*}} "patchable-function"="prologue-short-redirect"
diff --git a/clang/test/CodeGenCXX/debug-info-hotpatch.cpp b/clang/test/CodeGenCXX/debug-info-hotpatch.cpp
new file mode 100644
--- /dev/null
+++ b/clang/test/CodeGenCXX/debug-info-hotpatch.cpp
@@ -0,0 +1,13 @@
+// REQUIRES: x86-registered-target
+// RUN: %clang_cl --target=x86_64-windows-msvc /c /hotpatch /Z7 %s -o %t.obj
+// RUN: llvm-pdbutil dump -symbols %t.obj | FileCheck %s
+// RUN: %clang_cl --target=x86_64-windows-msvc /c /Z7 %s -o %t.obj
+// RUN: llvm-pdbutil dump -symbols %t.obj | FileCheck %s --check-prefix=NOHOTPATCH
+
+int main() {
+  return 0;
+}
+
+// CHECK: S_COMPILE3 [size = [[#]]]
+// CHECK: flags = hot patchable
+// NOHOTPATCH-NOT: flags = hot patchable
diff --git a/clang/test/Driver/cl-options.c b/clang/test/Driver/cl-options.c
--- a/clang/test/Driver/cl-options.c
+++ b/clang/test/Driver/cl-options.c
@@ -118,6 +118,9 @@
 // RUN: %clang_cl /Gw /Gw- -### -- %s 2>&1 | FileCheck -check-prefix=Gw_ %s
 // Gw_-NOT: -fdata-sections
 
+// RUN: %clang_cl /hotpatch -### -- %s 2>&1 | FileCheck -check-prefix=hotpatch %s
+// hotpatch: -fhotpatch
+
 // RUN: %clang_cl /Imyincludedir -### -- %s 2>&1 | FileCheck -check-prefix=SLASH_I %s
 // RUN: %clang_cl /I myincludedir -### -- %s 2>&1 | FileCheck -check-prefix=SLASH_I %s
 // SLASH_I: "-I" "myincludedir"
diff --git a/llvm/include/llvm/Target/TargetOptions.h b/llvm/include/llvm/Target/TargetOptions.h
--- a/llvm/include/llvm/Target/TargetOptions.h
+++ b/llvm/include/llvm/Target/TargetOptions.h
@@ -140,9 +140,9 @@
           EnableMachineFunctionSplitter(false), SupportsDefaultOutlining(false),
           EmitAddrsig(false), EmitCallSiteInfo(false),
           SupportsDebugEntryValues(false), EnableDebugEntryValues(false),
-          ValueTrackingVariableLocations(false),
-          ForceDwarfFrameSection(false), XRayOmitFunctionIndex(false),
-          DebugStrictDwarf(false),
+          ValueTrackingVariableLocations(false), ForceDwarfFrameSection(false),
+          XRayOmitFunctionIndex(false), DebugStrictDwarf(false),
+          Hotpatch(false),
           FPDenormalMode(DenormalMode::IEEE, DenormalMode::IEEE) {}
 
     /// DisableFramePointerElim - This returns true if frame pointer elimination
@@ -342,6 +342,9 @@
     /// By default, it is set to false.
     unsigned DebugStrictDwarf : 1;
 
+    /// Emit the hotpatch flag in CodeView debug.
+    unsigned Hotpatch : 1;
+
     /// Name of the stack usage file (i.e., .su file) if user passes
     /// -fstack-usage. If empty, it can be implied that -fstack-usage is not
     /// passed on the command line.
diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
@@ -843,6 +843,8 @@
   if (MMI->getModule()->getProfileSummary(/*IsCS*/ false) != nullptr) {
     Flags |= static_cast<uint32_t>(CompileSym3Flags::PGO);
   }
+  if (Asm->TM.Options.Hotpatch)
+    Flags |= static_cast<uint32_t>(CompileSym3Flags::HotPatch);
 
   OS.AddComment("Flags and language");
   OS.emitInt32(Flags);