From dfe47dba37cc785df2f2736734d9ab2bffe39b80 Mon Sep 17 00:00:00 2001
From: Argyrios Kyrtzidis <akyrtzi@gmail.com>
Date: Fri, 15 Oct 2010 18:51:34 +0000
Subject: [PATCH] Revert r116605, a lot more were committed by mistake.

llvm-svn: 116606
---
 .../clang/Basic/DiagnosticDriverKinds.td      |  2 --
 clang/include/clang/Driver/Options.td         |  1 -
 clang/lib/Driver/Tools.cpp                    | 10 ---------
 clang/test/Driver/pth.c                       | 21 -------------------
 4 files changed, 34 deletions(-)

diff --git a/clang/include/clang/Basic/DiagnosticDriverKinds.td b/clang/include/clang/Basic/DiagnosticDriverKinds.td
index a7c30a744d2f..19011ace7f27 100644
--- a/clang/include/clang/Basic/DiagnosticDriverKinds.td
+++ b/clang/include/clang/Basic/DiagnosticDriverKinds.td
@@ -102,7 +102,5 @@ def warn_drv_objc_gc_unsupported : Warning<
   "Objective-C garbage collection is not supported on this platform, ignoring '%0'">;
 def warn_drv_pch_not_first_include : Warning<
   "precompiled header '%0' was ignored because '%1' is not first '-include'">;
-def warn_drv_pch_missing_language : Warning<
-  "ignoring argument '%0' due to missing precompiled header '%1' for language '%2'">;
 
 }
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index ab87d57d4353..cfb9c81b574c 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -426,7 +426,6 @@ def iframework : JoinedOrSeparate<"-iframework">, Group<clang_i_Group>;
 def imacros : JoinedOrSeparate<"-imacros">, Group<clang_i_Group>;
 def image__base : Separate<"-image_base">;
 def include_ : JoinedOrSeparate<"-include">, Group<clang_i_Group>, EnumName<"include">;
-def include_pch : Separate<"-include-pch">, Group<clang_i_Group>;
 def init : Separate<"-init">;
 def install__name : Separate<"-install_name">;
 def integrated_as : Flag<"-integrated-as">, Flags<[DriverOption]>;
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index fd57cffbc543..229cf608f3f0 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -256,16 +256,6 @@ void Clang::AddPreprocessingOptions(const Driver &D,
       if (FoundPCH || FoundPTH) {
         if (IsFirstImplicitInclude) {
           A->claim();
-          if (P.isDirectory()) {
-            // Expect to find a precompiled header matching the current input type
-            P.appendComponent(types::getTypeName(Inputs[0].getType()));
-            if (!P.exists()) {
-              D.Diag(clang::diag::warn_drv_pch_missing_language)
-                  << A->getAsString(Args) << P.str()
-                  << types::getTypeName(Inputs[0].getType());
-              continue;
-            }
-          }
           if (UsePCH)
             CmdArgs.push_back("-include-pch");
           else
diff --git a/clang/test/Driver/pth.c b/clang/test/Driver/pth.c
index d6ed90423b62..9c47c5599376 100644
--- a/clang/test/Driver/pth.c
+++ b/clang/test/Driver/pth.c
@@ -10,24 +10,3 @@
 // RUN: FileCheck -check-prefix CHECK2 -input-file %t.log %s
 
 // CHECK2: "{{.*}}/clang{{.*}}" "-cc1" {{.*}}"-include-pth" "{{.*}}.h.pth" {{.*}}"-x" "c" "{{.*}}pth.c"
-
-// RUN: mkdir -p %t.pth
-// RUN: %clang -ccc-pch-is-pth -x c-header %s -o %t.pth/c -### 2> %t.log
-// RUN: FileCheck -check-prefix CHECK3 -input-file %t.log %s
-
-// CHECK3: "{{.*}}/clang{{.*}}" "-cc1" {{.*}} "-o" "{{.*}}.pth/c" "-x" "c-header" "{{.*}}pth.c"
-
-// RUN: rm -f %t.pth/c
-// RUN: %clang -ccc-pch-is-pth -E -include %t %s -### 2> %t.log
-// RUN: echo "DONE" >> %t.log
-// RUN: FileCheck -check-prefix CHECK4 -input-file %t.log %s
-
-// CHECK4: {{.*}} ignoring argument '-include {{.*}}' due to missing precompiled header '{{.*}}.pth/c' for language 'c'
-// CHECK4-NOT: -include-pth
-// CHECK4: DONE
-
-// RUN: touch %t.pth/c
-// RUN: %clang -ccc-pch-is-pth -E -include %t %s -### 2> %t.log
-// RUN: FileCheck -check-prefix CHECK5 -input-file %t.log %s
-
-// CHECK5: "{{.*}}/clang{{.*}}" "-cc1" {{.*}}"-include-pth" "{{.*}}.pth/c" {{.*}}"-x" "c" "{{.*}}pth.c"