diff --git a/llvm/lib/Target/Hexagon/AsmParser/HexagonAsmParser.cpp b/llvm/lib/Target/Hexagon/AsmParser/HexagonAsmParser.cpp
--- a/llvm/lib/Target/Hexagon/AsmParser/HexagonAsmParser.cpp
+++ b/llvm/lib/Target/Hexagon/AsmParser/HexagonAsmParser.cpp
@@ -71,7 +71,7 @@
 static cl::opt<bool> WarnSignedMismatch(
     "mwarn-sign-mismatch",
     cl::desc("Warn for mismatching a signed and unsigned value"),
-    cl::init(true));
+    cl::init(false));
 static cl::opt<bool> WarnNoncontigiousRegister(
     "mwarn-noncontigious-register",
     cl::desc("Warn for register names that arent contigious"), cl::init(true));