diff --git a/llvm/test/tools/llvm-symbolizer/invalid-input-address.test b/llvm/test/tools/llvm-symbolizer/invalid-input-address.test
--- a/llvm/test/tools/llvm-symbolizer/invalid-input-address.test
+++ b/llvm/test/tools/llvm-symbolizer/invalid-input-address.test
@@ -1,7 +1,23 @@
 # Use address that can't fit in a 64-bit number. Show that llvm-symbolizer
 # simply echoes it as per other malformed input addresses.
-RUN: llvm-symbolizer --obj=addr.exe 0x10000000000000000 | FileCheck %s
+RUN: llvm-symbolizer --obj=addr.exe 0x10000000000000000 | FileCheck --check-prefix=LARGE-ADDR %s
 
-CHECK-NOT: {{.}}
-CHECK:     0x10000000000000000
-CHECK-NOT: {{.}}
+LARGE-ADDR-NOT: {{.}}
+LARGE-ADDR:     0x10000000000000000
+LARGE-ADDR-NOT: {{.}}
+
+RUN: echo '"some text"' '"some text2"' > %t.rsp
+RUN: echo -e 'some text\nsome text2\n' > %t.inp
+
+# Test bad input address values, via stdin, command line and response file.
+RUN: llvm-symbolizer --obj=%p/Inputs/addr.exe < %t.inp | FileCheck --check-prefix=BAD-INPUT %s
+RUN: llvm-symbolizer --obj=%p/Inputs/addr.exe "some text" "some text2" | FileCheck --check-prefix=BAD-INPUT %s
+RUN: llvm-symbolizer --obj=%p/Inputs/addr.exe @%t.rsp | FileCheck --check-prefix=BAD-INPUT %s
+
+# Test bad input address values for the GNU-compatible version.
+RUN: llvm-addr2line --obj=%p/Inputs/addr.exe < %t.inp | FileCheck --check-prefix=BAD-INPUT %s
+RUN: llvm-addr2line --obj=%p/Inputs/addr.exe "some text" "some text2" | FileCheck --check-prefix=BAD-INPUT %s
+RUN: llvm-addr2line --obj=%p/Inputs/addr.exe @%t.rsp | FileCheck --check-prefix=BAD-INPUT %s
+
+BAD-INPUT:      some text
+BAD-INPUT-NEXT: some text2
diff --git a/llvm/test/tools/llvm-symbolizer/sym.test b/llvm/test/tools/llvm-symbolizer/sym.test
--- a/llvm/test/tools/llvm-symbolizer/sym.test
+++ b/llvm/test/tools/llvm-symbolizer/sym.test
@@ -42,11 +42,16 @@
 RUN: llvm-addr2line -pfi -obj=%p/Inputs/addr.exe < %p/Inputs/addr.inp | FileCheck -check-prefixes=A2LP,A2LP_F,A2LP_FI %s
 RUN: llvm-addr2line -pafi -obj=%p/Inputs/addr.exe < %p/Inputs/addr.inp | FileCheck -check-prefixes=A2LP,A2LP_AF,A2LP_FI %s
 
-#CHECK: some text
-#CHECK: 0x40054d
-#CHECK: main
-#CHECK: {{[/\]+}}tmp{{[/\]+}}x.c:14:0
-#CHECK: some text2
+# CHECK: some text
+# CHECK-NEXT: 0x40054d
+# CHECK-NEXT: inctwo
+# CHECK-NEXT: {{[/\]+}}tmp{{[/\]+}}x.c:3:3
+# CHECK-NEXT: inc
+# CHECK-NEXT: {{[/\]+}}tmp{{[/\]+}}x.c:7:0
+# CHECK-NEXT: main
+# CHECK-NEXT: {{[/\]+}}tmp{{[/\]+}}x.c:14:0
+# CHECK-EMPTY:
+# CHECK-NEXT: some text2
 #
 #PRETTY: some text
 #PRETTY: {{[0x]+}}40054d: inctwo at {{[/\]+}}tmp{{[/\]+}}x.c:3:3
diff --git a/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp b/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
--- a/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
+++ b/llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
@@ -24,6 +24,7 @@
 #include "llvm/Support/InitLLVM.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/raw_ostream.h"
+#include <algorithm>
 #include <cstdio>
 #include <cstring>
 #include <string>
@@ -228,7 +229,7 @@
   std::string ModuleName;
   uint64_t Offset = 0;
   if (!parseCommand(StringRef(InputString), Cmd, ModuleName, Offset)) {
-    outs() << InputString;
+    outs() << InputString << "\n";
     return;
   }
 
@@ -328,7 +329,13 @@
     char InputString[kMaxInputStringLength];
 
     while (fgets(InputString, sizeof(InputString), stdin)) {
-      symbolizeInput(InputString, Symbolizer, Printer);
+      // Strip newline characters.
+      std::string StrippedInputString(InputString);
+      StrippedInputString.erase(
+          std::remove_if(StrippedInputString.begin(), StrippedInputString.end(),
+                         [](char c) { return c == '\r' || c == '\n'; }),
+          StrippedInputString.end());
+      symbolizeInput(StrippedInputString, Symbolizer, Printer);
       outs().flush();
     }
   } else {