Index: clang/lib/Format/FormatToken.h
===================================================================
--- clang/lib/Format/FormatToken.h
+++ clang/lib/Format/FormatToken.h
@@ -1787,8 +1787,7 @@
 
   /// Whether the token begins a block.
   bool isBlockBegin(const FormatToken &Tok, const FormatStyle &Style) const {
-    return Tok.is(TT_MacroBlockBegin) ||
-           (Style.isVerilog() ? isVerilogBegin(Tok) : Tok.is(tok::l_brace));
+    return Style.isVerilog() ? isVerilogBegin(Tok) : Tok.is(tok::l_brace);
   }
 
 private:
Index: clang/unittests/Format/FormatTest.cpp
===================================================================
--- clang/unittests/Format/FormatTest.cpp
+++ clang/unittests/Format/FormatTest.cpp
@@ -6602,6 +6602,13 @@
                "  x = 1;\n"
                "FOO_END(Baz)",
                Style);
+
+  Style.RemoveBracesLLVM = true;
+  verifyNoCrash("for (;;)\n"
+                "  FOO_BEGIN\n"
+                "    foo();\n"
+                "  FOO_END",
+                Style);
 }
 
 //===----------------------------------------------------------------------===//