commit 66094a244932a6fc4ac63b166da11850af96ba79
Author: Logan Chien <tzuhsiang.chien@gmail.com>
Date:   Wed Aug 29 11:47:44 2012 +0800

    Add i686-linux-android for gcc toolchain detection.
    
    * Look for i686-linux-android under <sysroot>/lib/gcc.
    
    * This patch also slightly enhance the test suite for
      Android GCC toolchain detection.

diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index e036ee2..42eb128 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -1094,6 +1094,7 @@ Generic_GCC::GCCInstallationDetector::GCCInstallationDetector(
     "i686-pc-linux-gnu",
     "i486-linux-gnu",
     "i386-linux-gnu",
+    "i686-linux-android",
     "i686-redhat-linux",
     "i586-redhat-linux",
     "i386-redhat-linux",
diff --git a/test/Driver/Inputs/basic_android_tree/arm-linux-androideabi/bin/as b/test/Driver/Inputs/basic_android_tree/arm-linux-androideabi/bin/as
new file mode 100755
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/arm-linux-androideabi/bin/ld b/test/Driver/Inputs/basic_android_tree/arm-linux-androideabi/bin/ld
new file mode 100755
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/i686-linux-android/bin/ar b/test/Driver/Inputs/basic_android_tree/i686-linux-android/bin/ar
new file mode 100755
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/i686-linux-android/bin/ld b/test/Driver/Inputs/basic_android_tree/i686-linux-android/bin/ld
new file mode 100755
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtbegin.o b/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtbegin.o
new file mode 100644
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtbeginS.o b/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtbeginS.o
new file mode 100644
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtbeginT.o b/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtbeginT.o
new file mode 100644
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtend.o b/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtend.o
new file mode 100644
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtendS.o b/test/Driver/Inputs/basic_android_tree/lib/gcc/i686-linux-android/4.6/crtendS.o
new file mode 100644
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/mipsel-linux-android/bin/as b/test/Driver/Inputs/basic_android_tree/mipsel-linux-android/bin/as
new file mode 100755
index 0000000..e69de29
diff --git a/test/Driver/Inputs/basic_android_tree/mipsel-linux-android/bin/ld b/test/Driver/Inputs/basic_android_tree/mipsel-linux-android/bin/ld
new file mode 100755
index 0000000..e69de29
diff --git a/test/Driver/android.c b/test/Driver/android.c
new file mode 100644
index 0000000..cd61a19
--- /dev/null
+++ b/test/Driver/android.c
@@ -0,0 +1,21 @@
+// Test Android Toolchain Detection
+
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o \
+// RUN:     -target arm-linux-androideabi \
+// RUN:     -gcc-toolchain %S/Inputs/basic_android_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-ANDROID-ARM %s
+// CHECK-ANDROID-ARM: "{{.*}}/Inputs/basic_android_tree/{{.*}}/arm-linux-androideabi/bin/as"
+// CHECK-ANDROID-ARM: "{{.*}}/Inputs/basic_android_tree/{{.*}}/arm-linux-androideabi/bin/ld"
+
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o \
+// RUN:     -target mipsel-linux-android \
+// RUN:     -gcc-toolchain %S/Inputs/basic_android_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-ANDROID-MIPS %s
+// CHECK-ANDROID-MIPS: "{{.*}}/Inputs/basic_android_tree/{{.*}}/mipsel-linux-android/bin/as"
+// CHECK-ANDROID-MIPS: "{{.*}}/Inputs/basic_android_tree/{{.*}}/mipsel-linux-android/bin/ld"
+
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o \
+// RUN:     -target i686-linux-android \
+// RUN:     -gcc-toolchain %S/Inputs/basic_android_tree 2>&1 \
+// RUN:   | FileCheck --check-prefix=CHECK-ANDROID-X86 %s
+// CHECK-ANDROID-X86: "{{.*}}/Inputs/basic_android_tree/{{.*}}/i686-linux-android/bin/ld"
diff --git a/test/Driver/linux-ld.c b/test/Driver/linux-ld.c
index 06be358..c0ea45d 100644
--- a/test/Driver/linux-ld.c
+++ b/test/Driver/linux-ld.c
@@ -412,7 +412,7 @@
 // RUN:     --sysroot=%S/Inputs/basic_android_tree/sysroot \
 // RUN:   | FileCheck --check-prefix=CHECK-ANDROID %s
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target i386-linux-android \
+// RUN:     -target i686-linux-android \
 // RUN:     --sysroot=%S/Inputs/basic_android_tree/sysroot \
 // RUN:   | FileCheck --check-prefix=CHECK-ANDROID %s
 // CHECK-ANDROID: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
@@ -439,7 +439,7 @@
 // RUN:     -shared \
 // RUN:   | FileCheck --check-prefix=CHECK-ANDROID-SO %s
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target i386-linux-android \
+// RUN:     -target i686-linux-android \
 // RUN:     --sysroot=%S/Inputs/basic_android_tree/sysroot \
 // RUN:     -shared \
 // RUN:   | FileCheck --check-prefix=CHECK-ANDROID-SO %s
@@ -468,7 +468,7 @@
 // RUN:     -static \
 // RUN:   | FileCheck --check-prefix=CHECK-ANDROID-STATIC %s
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target i386-linux-android \
+// RUN:     -target i686-linux-android \
 // RUN:     --sysroot=%S/Inputs/basic_android_tree/sysroot \
 // RUN:     -static \
 // RUN:   | FileCheck --check-prefix=CHECK-ANDROID-STATIC %s
@@ -496,7 +496,7 @@
 // RUN:     -pie \
 // RUN:   | FileCheck --check-prefix=CHECK-ANDROID-PIE %s
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -target i386-linux-android \
+// RUN:     -target i686-linux-android \
 // RUN:     --sysroot=%S/Inputs/basic_android_tree/sysroot \
 // RUN:     -pie \
 // RUN:   | FileCheck --check-prefix=CHECK-ANDROID-PIE %s