diff --git a/contrib/llvm-project/clang/include/clang/Driver/Options.td b/contrib/llvm-project/clang/include/clang/Driver/Options.td
index f818acb39d51..966cb907b7e2 100644
--- a/contrib/llvm-project/clang/include/clang/Driver/Options.td
+++ b/contrib/llvm-project/clang/include/clang/Driver/Options.td
@@ -1435,11 +1435,11 @@ def fno_pch_validate_input_files_content:
   Group<f_Group>, Flags<[DriverOption]>;
 def fpch_instantiate_templates:
   Flag <["-"], "fpch-instantiate-templates">,
-  Group<f_Group>, Flags<[CC1Option]>,
+  Group<f_Group>, Flags<[CC1Option, CoreOption]>,
   HelpText<"Instantiate templates already while building a PCH">;
 def fno_pch_instantiate_templates:
   Flag <["-"], "fno-pch-instantiate-templates">,
-  Group<f_Group>, Flags<[CC1Option]>;
+  Group<f_Group>, Flags<[CC1Option, CoreOption]>;
 defm pch_codegen: OptInFFlag<"pch-codegen", "Generate ", "Do not generate ",
   "code for uses of this PCH that assumes an explicit object file will be built for the PCH">;
 defm pch_debuginfo: OptInFFlag<"pch-debuginfo", "Generate ", "Do not generate ",
diff --git a/contrib/llvm-project/clang/lib/Driver/ToolChains/Clang.cpp b/contrib/llvm-project/clang/lib/Driver/ToolChains/Clang.cpp
index f0a5451322aa..af4bcf951e6c 100644
--- a/contrib/llvm-project/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/contrib/llvm-project/clang/lib/Driver/ToolChains/Clang.cpp
@@ -1197,7 +1197,11 @@ void Clang::AddPreprocessingOptions(Compilation &C, const JobAction &JA,
     if (YcArg && JA.getKind() >= Action::PrecompileJobClass &&
         JA.getKind() <= Action::AssembleJobClass) {
       CmdArgs.push_back(Args.MakeArgString("-building-pch-with-obj"));
-      CmdArgs.push_back(Args.MakeArgString("-fpch-instantiate-templates"));
+      // -fpch-instantiate-templates is the default when creating
+      // precomp using /Yc
+      if (Args.hasFlag(options::OPT_fpch_instantiate_templates,
+                       options::OPT_fno_pch_instantiate_templates, true))
+        CmdArgs.push_back(Args.MakeArgString("-fpch-instantiate-templates"));
     }
     if (YcArg || YuArg) {
       StringRef ThroughHeader = YcArg ? YcArg->getValue() : YuArg->getValue();
diff --git a/contrib/llvm-project/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/contrib/llvm-project/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 64af293caf9e..8b3e6189a07f 100644
--- a/contrib/llvm-project/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/contrib/llvm-project/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -5751,10 +5751,8 @@ SDValue TargetLowering::getNegatedExpression(SDValue Op, SelectionDAG &DAG,
 
     // If we already have the use of the negated floating constant, it is free
     // to negate it even it has multiple uses.
-    if (!Op.hasOneUse() && CFP.use_empty()) {
-      RemoveDeadNode(CFP);
+    if (!Op.hasOneUse() && CFP.use_empty())
       break;
-    }
     Cost = NegatibleCost::Neutral;
     return CFP;
   }
diff --git a/contrib/llvm-project/llvm/lib/CodeGen/TailDuplicator.cpp b/contrib/llvm-project/llvm/lib/CodeGen/TailDuplicator.cpp
index bd554189f12b..f9773f74a7bd 100644
--- a/contrib/llvm-project/llvm/lib/CodeGen/TailDuplicator.cpp
+++ b/contrib/llvm-project/llvm/lib/CodeGen/TailDuplicator.cpp
@@ -627,6 +627,14 @@ bool TailDuplicator::shouldTailDuplicate(bool IsSimple,
     if (PreRegAlloc && MI.isCall())
       return false;
 
+    // TailDuplicator::appendCopies will erroneously place COPYs after
+    // INLINEASM_BR instructions after 4b0aa5724fea, which demonstrates the same
+    // bug that was fixed in f7a53d82c090.
+    // FIXME: Use findPHICopyInsertPoint() to find the correct insertion point
+    //        for the COPY when replacing PHIs.
+    if (MI.getOpcode() == TargetOpcode::INLINEASM_BR)
+      return false;
+
     if (MI.isBundle())
       InstrCount += MI.getBundleSize();
     else if (!MI.isPHI() && !MI.isMetaInstruction())
diff --git a/lib/clang/include/VCSVersion.inc b/lib/clang/include/VCSVersion.inc
index b2eea8f942ec..262abbdeb434 100644
--- a/lib/clang/include/VCSVersion.inc
+++ b/lib/clang/include/VCSVersion.inc
@@ -1,14 +1,14 @@
 // $FreeBSD$
 
-#define LLVM_REVISION "llvmorg-11.0.0-rc5-0-g60a25202a7d"
+#define LLVM_REVISION "llvmorg-11.0.0-0-g176249bd673"
 #define LLVM_REPOSITORY "git@github.com:llvm/llvm-project.git"
 
-#define CLANG_REVISION "llvmorg-11.0.0-rc5-0-g60a25202a7d"
+#define CLANG_REVISION "llvmorg-11.0.0-0-g176249bd673"
 #define CLANG_REPOSITORY "git@github.com:llvm/llvm-project.git"
 
 // <Upstream revision at import>-<Local identifier in __FreeBSD_version style>
-#define LLD_REVISION "llvmorg-11.0.0-rc5-0-g60a25202a7d-1300007"
+#define LLD_REVISION "llvmorg-11.0.0-0-g176249bd673-1300007"
 #define LLD_REPOSITORY "FreeBSD"
 
-#define LLDB_REVISION "llvmorg-11.0.0-rc5-0-g60a25202a7d"
+#define LLDB_REVISION "llvmorg-11.0.0-0-g176249bd673"
 #define LLDB_REPOSITORY "git@github.com:llvm/llvm-project.git"
diff --git a/lib/clang/include/llvm/Support/VCSRevision.h b/lib/clang/include/llvm/Support/VCSRevision.h
index 495520a531e1..f61139ec085d 100644
--- a/lib/clang/include/llvm/Support/VCSRevision.h
+++ b/lib/clang/include/llvm/Support/VCSRevision.h
@@ -1,3 +1,3 @@
 /* $FreeBSD$ */
-#define LLVM_REVISION "llvmorg-11.0.0-rc5-0-g60a25202a7d"
+#define LLVM_REVISION "llvmorg-11.0.0-0-g176249bd673"
 #define LLVM_REPOSITORY "git@github.com:llvm/llvm-project.git"