[llvm-rc] Support '--' for delimiting options from input paths

This allows avoiding conflicts between paths that begin with the same
chars as some llvm-rc options (which can be used with either slashes
or dashes).

Differential Revision: https://reviews.llvm.org/D56743

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351305 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/tools/llvm-rc/absolute.test b/test/tools/llvm-rc/absolute.test
index 5e8a6c8..95aff3e 100644
--- a/test/tools/llvm-rc/absolute.test
+++ b/test/tools/llvm-rc/absolute.test
@@ -1,3 +1,3 @@
 ; RUN: touch %t.manifest
 ; RUN: echo "1 24 \"%t.manifest\"" > %t.rc
-; RUN: llvm-rc %t.rc
+; RUN: llvm-rc -- %t.rc
diff --git a/test/tools/llvm-rc/codepage.test b/test/tools/llvm-rc/codepage.test
index ce17e0a..05e3181 100644
--- a/test/tools/llvm-rc/codepage.test
+++ b/test/tools/llvm-rc/codepage.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /C 65001 /FO %t.utf8.res %p/Inputs/utf8.rc
+; RUN: llvm-rc /C 65001 /FO %t.utf8.res -- %p/Inputs/utf8.rc
 ; RUN: llvm-readobj %t.utf8.res | FileCheck %s --check-prefix=UTF8
 
 ; UTF8:      Resource type (int): 6
diff --git a/test/tools/llvm-rc/cpp-output.test b/test/tools/llvm-rc/cpp-output.test
index 456a59d..984e9fd 100644
--- a/test/tools/llvm-rc/cpp-output.test
+++ b/test/tools/llvm-rc/cpp-output.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/cpp-output.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/cpp-output.rc
 ; RUN: llvm-readobj %t | FileCheck %s
 
 ; CHECK:      Resource type (int): 6
diff --git a/test/tools/llvm-rc/flags.test b/test/tools/llvm-rc/flags.test
index 452e90a..5b71481 100644
--- a/test/tools/llvm-rc/flags.test
+++ b/test/tools/llvm-rc/flags.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /dry-run /FO %t %p/Inputs/empty.rc 2>&1 | FileCheck %s --allow-empty --check-prefix=FO
-; RUN: llvm-rc /dry-run /FO%t %p/Inputs/empty.rc 2>&1 | FileCheck %s --allow-empty --check-prefix=FO
+; RUN: llvm-rc /dry-run /FO %t -- %p/Inputs/empty.rc 2>&1 | FileCheck %s --allow-empty --check-prefix=FO
+; RUN: llvm-rc /dry-run /FO%t -- %p/Inputs/empty.rc 2>&1 | FileCheck %s --allow-empty --check-prefix=FO
 
 ; FO-NOT: Exactly one input file should be provided.
diff --git a/test/tools/llvm-rc/include-paths.test b/test/tools/llvm-rc/include-paths.test
index e6c52b1..10a77e6 100644
--- a/test/tools/llvm-rc/include-paths.test
+++ b/test/tools/llvm-rc/include-paths.test
@@ -1,21 +1,21 @@
 ; Should find the bitmap if it is in the same folder as the rc file.
 ; RUN: rm -f %t.include.res
-; RUN: llvm-rc /FO %t.include.res %p/Inputs/include.rc
+; RUN: llvm-rc /FO %t.include.res -- %p/Inputs/include.rc
 ; RUN: llvm-readobj %t.include.res | FileCheck --check-prefix=FOUND %s
 
 ; Try including files without quotes.
 ; RUN: rm -f %t.noquotes.res
-; RUN: llvm-rc /FO %t.noquotes.res %p/Inputs/include-noquotes.rc
+; RUN: llvm-rc /FO %t.noquotes.res -- %p/Inputs/include-noquotes.rc
 ; RUN: llvm-readobj %t.noquotes.res | FileCheck --check-prefix=FOUND %s
 
 ; Should find the bitmap if the folder is explicitly specified.
 ; RUN: rm -f %t.nested-include.res
-; RUN: llvm-rc /FO %t.nested-include.res /I %p/Inputs/nested %p/Inputs/deep-include.rc
+; RUN: llvm-rc /FO %t.nested-include.res /I %p/Inputs/nested -- %p/Inputs/deep-include.rc
 ; RUN: llvm-readobj %t.nested-include.res | FileCheck --check-prefix=FOUND %s
 
 ; Otherwise, it should not find the bitmap.
 ; RUN: rm -f %t.nested-include.res
-; RUN: not llvm-rc /FO %t.nested-include.res %p/Inputs/deep-include.rc 2>&1 \
+; RUN: not llvm-rc /FO %t.nested-include.res -- %p/Inputs/deep-include.rc 2>&1 \
 ; RUN:   | FileCheck --check-prefix=MISSING %s
 
 ; Should find the bitmap if the process's current working directory
@@ -24,7 +24,7 @@
 ; failure of other tests if run first.
 ; RUN: rm -f %t.nested-include.res
 ; RUN: cd %p/Inputs/nested
-; RUN: llvm-rc /FO %t.nested-include.res %p/Inputs/include.rc
+; RUN: llvm-rc /FO %t.nested-include.res -- %p/Inputs/include.rc
 ; RUN: llvm-readobj %t.nested-include.res | FileCheck --check-prefix=FOUND %s
 
 FOUND:      Resource type (int): 2
diff --git a/test/tools/llvm-rc/memoryflags-stringtable.test b/test/tools/llvm-rc/memoryflags-stringtable.test
index f168bed..e8a2d40 100644
--- a/test/tools/llvm-rc/memoryflags-stringtable.test
+++ b/test/tools/llvm-rc/memoryflags-stringtable.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/memoryflags-stringtable.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/memoryflags-stringtable.rc
 ; RUN: llvm-readobj %t | FileCheck %s
 
 ; CHECK:      Resource type (int): 6
diff --git a/test/tools/llvm-rc/memoryflags.test b/test/tools/llvm-rc/memoryflags.test
index c36fb9b..14e1193 100644
--- a/test/tools/llvm-rc/memoryflags.test
+++ b/test/tools/llvm-rc/memoryflags.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/memoryflags.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/memoryflags.rc
 ; RUN: llvm-readobj %t | FileCheck %s
 
 ; CHECK:      Resource type (int): 1
diff --git a/test/tools/llvm-rc/not-expr.test b/test/tools/llvm-rc/not-expr.test
index c602234..43725ed 100644
--- a/test/tools/llvm-rc/not-expr.test
+++ b/test/tools/llvm-rc/not-expr.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/not-expr.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/not-expr.rc
 ; RUN: llvm-readobj %t | FileCheck %s --check-prefix=NOTEXPR
 
 ; NOTEXPR: Resource type (int): 5
diff --git a/test/tools/llvm-rc/parser-expr.test b/test/tools/llvm-rc/parser-expr.test
index 9558f93..1fb6aa6 100644
--- a/test/tools/llvm-rc/parser-expr.test
+++ b/test/tools/llvm-rc/parser-expr.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /dry-run /V %p/Inputs/parser-expr.rc | FileCheck %s
+; RUN: llvm-rc /dry-run /V -- %p/Inputs/parser-expr.rc | FileCheck %s
 
 ; CHECK:  Language: 5, Sublanguage: 1
 ; CHECK-NEXT:  Language: 3, Sublanguage: 2
diff --git a/test/tools/llvm-rc/parser.test b/test/tools/llvm-rc/parser.test
index 66ed738..4f10d78 100644
--- a/test/tools/llvm-rc/parser.test
+++ b/test/tools/llvm-rc/parser.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /dry-run /V %p/Inputs/parser-correct-everything.rc | FileCheck %s --check-prefix PGOOD
+; RUN: llvm-rc /dry-run /V -- %p/Inputs/parser-correct-everything.rc | FileCheck %s --check-prefix PGOOD
 
 ; PGOOD:  Icon (meh): "hello.bmp"
 ; PGOOD-NEXT:  Icon (Icon): "Icon"
diff --git a/test/tools/llvm-rc/tag-accelerators.test b/test/tools/llvm-rc/tag-accelerators.test
index 093a0bd..910bf21 100644
--- a/test/tools/llvm-rc/tag-accelerators.test
+++ b/test/tools/llvm-rc/tag-accelerators.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/tag-accelerators.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/tag-accelerators.rc
 ; RUN: llvm-readobj %t | FileCheck %s --check-prefix=ACCELERATORS
 
 ; ACCELERATORS: Resource type (int): 9
diff --git a/test/tools/llvm-rc/tag-dialog.test b/test/tools/llvm-rc/tag-dialog.test
index 85a8c20..d44326e 100644
--- a/test/tools/llvm-rc/tag-dialog.test
+++ b/test/tools/llvm-rc/tag-dialog.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/tag-dialog.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/tag-dialog.rc
 ; RUN: llvm-readobj %t | FileCheck %s --check-prefix=DIALOG
 
 ; DIALOG: Resource type (int): 5
diff --git a/test/tools/llvm-rc/tag-escape.test b/test/tools/llvm-rc/tag-escape.test
index 7c58e99..51c3d92 100644
--- a/test/tools/llvm-rc/tag-escape.test
+++ b/test/tools/llvm-rc/tag-escape.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/tag-escape.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/tag-escape.rc
 ; RUN: llvm-readobj %t | FileCheck %s
 
 ; CHECK:      Resource type (int): 4
diff --git a/test/tools/llvm-rc/tag-html.test b/test/tools/llvm-rc/tag-html.test
index 571e1bc..efeb04b 100644
--- a/test/tools/llvm-rc/tag-html.test
+++ b/test/tools/llvm-rc/tag-html.test
@@ -1,6 +1,6 @@
 ; RUN: rm -rf %t && mkdir %t && cd %t
 ; RUN: cp %p/Inputs/webpage*.html .
-; RUN: llvm-rc /FO %t/tag-html.res %p/Inputs/tag-html.rc
+; RUN: llvm-rc /FO %t/tag-html.res -- %p/Inputs/tag-html.rc
 ; RUN: llvm-readobj %t/tag-html.res | FileCheck %s --check-prefix HTML
 
 ; HTML: Resource type (int): 23
diff --git a/test/tools/llvm-rc/tag-icon-cursor.test b/test/tools/llvm-rc/tag-icon-cursor.test
index 44ef684..b4301f5 100644
--- a/test/tools/llvm-rc/tag-icon-cursor.test
+++ b/test/tools/llvm-rc/tag-icon-cursor.test
@@ -1,7 +1,7 @@
 ; RUN: rm -rf %t
 ; RUN: mkdir %t
 
-; RUN: llvm-rc /FO %t/tag-icon-cursor.res %p/Inputs/tag-icon-cursor.rc
+; RUN: llvm-rc /FO %t/tag-icon-cursor.res -- %p/Inputs/tag-icon-cursor.rc
 ; RUN: llvm-readobj %t/tag-icon-cursor.res | FileCheck %s
 
 ; CHECK: Resource type (int): 1
diff --git a/test/tools/llvm-rc/tag-menu.test b/test/tools/llvm-rc/tag-menu.test
index 25dc395..91e2445 100644
--- a/test/tools/llvm-rc/tag-menu.test
+++ b/test/tools/llvm-rc/tag-menu.test
@@ -1,9 +1,9 @@
-; RUN: llvm-rc /FO %t %p/Inputs/tag-menu.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/tag-menu.rc
 ; RUN: llvm-readobj %t | FileCheck %s --check-prefix=MENU
 
 ; Test running llvm-rc without an explicit output file.
 ; RUN: cp %p/Inputs/tag-menu.rc %t.implicit.rc
-; RUN: llvm-rc %t.implicit.rc
+; RUN: llvm-rc -- %t.implicit.rc
 ; RUN: llvm-readobj %t.implicit.res | FileCheck --check-prefix=MENU %s
 
 ; MENU: Resource type (int): 4
diff --git a/test/tools/llvm-rc/tag-stringtable.test b/test/tools/llvm-rc/tag-stringtable.test
index 43b5f5c..8dc4e57 100644
--- a/test/tools/llvm-rc/tag-stringtable.test
+++ b/test/tools/llvm-rc/tag-stringtable.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/tag-stringtable-basic.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/tag-stringtable-basic.rc
 ; RUN: llvm-readobj %t | FileCheck %s
 
 ; CHECK:      Resource type (int): 6
diff --git a/test/tools/llvm-rc/tag-user.test b/test/tools/llvm-rc/tag-user.test
index c0c1cfd..e93899c 100644
--- a/test/tools/llvm-rc/tag-user.test
+++ b/test/tools/llvm-rc/tag-user.test
@@ -2,7 +2,7 @@
 ; RUN: mkdir %t
 ; RUN: cd %t
 ; RUN: cp %p/Inputs/bitmap.bmp .
-; RUN: llvm-rc /FO %t/tag-user.res %p/Inputs/tag-user.rc
+; RUN: llvm-rc /FO %t/tag-user.res -- %p/Inputs/tag-user.rc
 ; RUN: llvm-readobj %t/tag-user.res | FileCheck %s
 
 ; CHECK:      Resource type (int): 500
diff --git a/test/tools/llvm-rc/tag-versioninfo.test b/test/tools/llvm-rc/tag-versioninfo.test
index 4c30346..0118f3c 100644
--- a/test/tools/llvm-rc/tag-versioninfo.test
+++ b/test/tools/llvm-rc/tag-versioninfo.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/tag-versioninfo.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/tag-versioninfo.rc
 ; RUN: llvm-readobj %t | FileCheck %s
 
 ; CHECK:      Resource type (int): 16
diff --git a/test/tools/llvm-rc/tokenizer.test b/test/tools/llvm-rc/tokenizer.test
index 5103b19..5916467 100644
--- a/test/tools/llvm-rc/tokenizer.test
+++ b/test/tools/llvm-rc/tokenizer.test
@@ -1,4 +1,4 @@
-; RUN: not llvm-rc /V /FO %t.res %p/Inputs/tokens.rc | FileCheck %s
+; RUN: not llvm-rc /V /FO %t.res -- %p/Inputs/tokens.rc | FileCheck %s
 ; llvm-rc fails now on this sample because it is an invalid resource file
 ; script. We silence the error message and just analyze the output.
 
diff --git a/test/tools/llvm-rc/versioninfo-padding.test b/test/tools/llvm-rc/versioninfo-padding.test
index 7cfb537..fab18a6 100644
--- a/test/tools/llvm-rc/versioninfo-padding.test
+++ b/test/tools/llvm-rc/versioninfo-padding.test
@@ -1,4 +1,4 @@
-; RUN: llvm-rc /FO %t %p/Inputs/versioninfo-padding.rc
+; RUN: llvm-rc /FO %t -- %p/Inputs/versioninfo-padding.rc
 ; RUN: llvm-readobj %t | FileCheck %s
 
 ; CHECK:      Resource type (int): 16
diff --git a/tools/llvm-rc/llvm-rc.cpp b/tools/llvm-rc/llvm-rc.cpp
index 4511c5c..54997e9 100644
--- a/tools/llvm-rc/llvm-rc.cpp
+++ b/tools/llvm-rc/llvm-rc.cpp
@@ -31,6 +31,7 @@
 #include "llvm/Support/Signals.h"
 #include "llvm/Support/raw_ostream.h"
 
+#include <algorithm>
 #include <system_error>
 
 using namespace llvm;
@@ -85,7 +86,10 @@
 
   RcOptTable T;
   unsigned MAI, MAC;
-  ArrayRef<const char *> ArgsArr = makeArrayRef(Argv + 1, Argc - 1);
+  const char **DashDash = std::find_if(
+      Argv + 1, Argv + Argc, [](StringRef Str) { return Str == "--"; });
+  ArrayRef<const char *> ArgsArr = makeArrayRef(Argv + 1, DashDash);
+
   opt::InputArgList InputArgs = T.ParseArgs(ArgsArr, MAI, MAC);
 
   // The tool prints nothing when invoked with no command-line arguments.
@@ -97,6 +101,8 @@
   const bool BeVerbose = InputArgs.hasArg(OPT_VERBOSE);
 
   std::vector<std::string> InArgsInfo = InputArgs.getAllArgValues(OPT_INPUT);
+  if (DashDash != Argv + Argc)
+    InArgsInfo.insert(InArgsInfo.end(), DashDash + 1, Argv + Argc);
   if (InArgsInfo.size() != 1) {
     fatalError("Exactly one input file should be provided.");
   }