Index: ELF/ScriptParser.cpp
===================================================================
--- ELF/ScriptParser.cpp
+++ ELF/ScriptParser.cpp
@@ -76,7 +76,7 @@
     // so that you can write "file-name.cpp" as one bare token, for example.
     size_t Pos = S.find_first_not_of(
         "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
-        "0123456789_.$/\\~=+[]*?-:!<>");
+        "0123456789_.$/\\~=+[]*?-:!<>^");
 
     // A character that cannot start a word (which is usually a
     // punctuation) forms a single character token.
Index: ELF/Strings.cpp
===================================================================
--- ELF/Strings.cpp
+++ ELF/Strings.cpp
@@ -24,25 +24,32 @@
 using namespace lld::elf;
 
 bool elf::hasWildcard(StringRef S) {
-  return S.find_first_of("?*") != StringRef::npos;
+  return S.find_first_of("?*[") != StringRef::npos;
 }
 
 // Converts a glob pattern to a regular expression.
 static std::string toRegex(StringRef S) {
-  if (S.find_first_of("[]") != StringRef::npos)
-    warning("unsupported wildcard: " + S);
-
   std::string T;
+  bool InBracketExpr = false;
   while (!S.empty()) {
     char C = S.front();
+    if (InBracketExpr) {
+      InBracketExpr = C != ']';
+      T += C;
+      S = S.drop_front();
+      continue;
+    }
+
     if (C == '*')
       T += ".*";
     else if (C == '?')
       T += '.';
-    else if (StringRef(".+^${}()|/\\[]").find_first_of(C) != StringRef::npos)
+    else if (StringRef(".+^${}()|/\\").find_first_of(C) != StringRef::npos)
       T += std::string("\\") + C;
     else
       T += C;
+
+    InBracketExpr = C == '[';
     S = S.substr(1);
   }
   return T;
Index: test/ELF/version-script-complex-wildcards.s
===================================================================
--- test/ELF/version-script-complex-wildcards.s
+++ test/ELF/version-script-complex-wildcards.s
@@ -0,0 +1,102 @@
+# REQUIRES: shell
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
+# RUN: echo "LIBSAMPLE_2.0 { \
+# RUN:   global:             \
+# RUN:     extern "C++" {    \
+# RUN:       ab[c]*;          \
+# RUN:   };                  \
+# RUN: }; " > %t.script
+# RUN: ld.lld --version-script %t.script -shared %t.o -o %t.so
+# RUN: llvm-readobj -V %t.so | FileCheck %s --check-prefix=ABC
+# ABC: Name: _Z3abbi@
+# ABC: Name: _Z3abci@@LIBSAMPLE_2.0
+
+# RUN: echo "LIBSAMPLE_2.0 { \
+# RUN:   global:             \
+# RUN:     extern "C++" {    \
+# RUN:       ab[b]*;          \
+# RUN:   };                  \
+# RUN: }; " > %t1.script
+# RUN: ld.lld --version-script %t1.script -shared %t.o -o %t1.so
+# RUN: llvm-readobj -V %t1.so | FileCheck %s --check-prefix=ABB
+# ABB: Name: _Z3abbi@@LIBSAMPLE_2.0
+# ABB: Name: _Z3abci@
+
+# RUN: echo "LIBSAMPLE_2.0 { \
+# RUN:   global:             \
+# RUN:     extern "C++" {    \
+# RUN:       ab[a-b]*;       \
+# RUN:   };                  \
+# RUN: }; " > %t2.script
+# RUN: ld.lld --version-script %t2.script -shared %t.o -o %t2.so
+# RUN: llvm-readobj -V %t2.so | FileCheck %s --check-prefix=ABB
+
+# RUN: echo "LIBSAMPLE_2.0 { \
+# RUN:   global:             \
+# RUN:     extern "C++" {    \
+# RUN:       ab[a-c]*;       \
+# RUN:   };                  \
+# RUN: }; " > %t3.script
+# RUN: ld.lld --version-script %t3.script -shared %t.o -o %t3.so
+# RUN: llvm-readobj -V %t3.so | FileCheck %s --check-prefix=ABBABC
+# ABBABC: Name: _Z3abbi@@LIBSAMPLE_2.0
+# ABBABC: Name: _Z3abci@@LIBSAMPLE_2.0
+
+# RUN: echo "LIBSAMPLE_2.0 { \
+# RUN:   global:             \
+# RUN:     extern "C++" {    \
+# RUN:       ab[a-bc-d]*;       \
+# RUN:   };                  \
+# RUN: }; " > %t4.script
+# RUN: ld.lld --version-script %t4.script -shared %t.o -o %t4.so
+# RUN: llvm-readobj -V %t4.so | FileCheck %s --check-prefix=ABBABC
+
+# RUN: echo "LIBSAMPLE_2.0 { \
+# RUN:   global:             \
+# RUN:     extern "C++" {    \
+# RUN:       ab[a-bd-e]*;       \
+# RUN:   };                  \
+# RUN: }; " > %t5.script
+# RUN: ld.lld --version-script %t5.script -shared %t.o -o %t5.so
+# RUN: llvm-readobj -V %t5.so | FileCheck %s --check-prefix=ABB
+
+# RUN: echo "LIBSAMPLE_2.0 { \
+# RUN:   global:             \
+# RUN:     extern "C++" {    \
+# RUN:       ab[^a-c]*;       \
+# RUN:   };                  \
+# RUN: }; " > %t6.script
+# RUN: ld.lld --version-script %t6.script -shared %t.o -o %t6.so
+# RUN: llvm-readobj -V %t6.so | FileCheck %s --check-prefix=NO
+# NO:  Name: _Z3abbi@
+# NO:  Name: _Z3abci@
+
+# RUN: echo "LIBSAMPLE_2.0 { \
+# RUN:   global:             \
+# RUN:     extern "C++" {    \
+# RUN:       ab[^c-z]*;       \
+# RUN:   };                  \
+# RUN: }; " > %t7.script
+# RUN: ld.lld --version-script %t7.script -shared %t.o -o %t7.so
+# RUN: llvm-readobj -V %t7.so | FileCheck %s --check-prefix=ABB
+
+# RUN: echo "LIBSAMPLE_2.0 { \
+# RUN:   global:             \
+# RUN:     extern "C++" {    \
+# RUN:       a[x-za-b][a-c]*;       \
+# RUN:   };                  \
+# RUN: }; " > %t8.script
+# RUN: ld.lld --version-script %t8.script -shared %t.o -o %t8.so
+# RUN: llvm-readobj -V %t8.so | FileCheck %s --check-prefix=ABBABC
+
+.text
+.globl _Z3abci
+.type _Z3abci,@function
+_Z3abci:
+retq
+
+.globl _Z3abbi
+.type _Z3abbi,@function
+_Z3abbi:
+retq