Index: clang-tools-extra/clang-tidy/bugprone/BranchCloneCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/bugprone/BranchCloneCheck.cpp
+++ clang-tools-extra/clang-tidy/bugprone/BranchCloneCheck.cpp
@@ -59,7 +59,8 @@
 
 void BranchCloneCheck::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(
-      ifStmt(stmt().bind("if"),
+      ifStmt(unless(allOf(isConstexpr(), isInTemplateInstantiation())),
+             stmt().bind("if"),
              hasParent(stmt(unless(ifStmt(hasElse(equalsBoundNode("if")))))),
              hasElse(stmt().bind("else"))),
       this);
Index: clang-tools-extra/clang-tidy/readability/BracesAroundStatementsCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/readability/BracesAroundStatementsCheck.cpp
+++ clang-tools-extra/clang-tidy/readability/BracesAroundStatementsCheck.cpp
@@ -123,7 +123,10 @@
 }
 
 void BracesAroundStatementsCheck::registerMatchers(MatchFinder *Finder) {
-  Finder->addMatcher(ifStmt().bind("if"), this);
+  Finder->addMatcher(
+      ifStmt(unless(allOf(isConstexpr(), isInTemplateInstantiation())))
+          .bind("if"),
+      this);
   Finder->addMatcher(whileStmt().bind("while"), this);
   Finder->addMatcher(doStmt().bind("do"), this);
   Finder->addMatcher(forStmt().bind("for"), this);
Index: clang-tools-extra/clang-tidy/readability/MisleadingIndentationCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/readability/MisleadingIndentationCheck.cpp
+++ clang-tools-extra/clang-tidy/readability/MisleadingIndentationCheck.cpp
@@ -106,7 +106,11 @@
 }
 
 void MisleadingIndentationCheck::registerMatchers(MatchFinder *Finder) {
-  Finder->addMatcher(ifStmt(hasElse(stmt())).bind("if"), this);
+  Finder->addMatcher(
+      ifStmt(unless(allOf(isConstexpr(), isInTemplateInstantiation())),
+             hasElse(stmt()))
+          .bind("if"),
+      this);
   Finder->addMatcher(
       compoundStmt(has(stmt(anyOf(ifStmt(), forStmt(), whileStmt()))))
           .bind("compound"),