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+// Test transparent PTH support.
+
+// RUN: %clang -no-canonical-prefixes -ccc-pch-is-pth -x c-header %s -o %t.h.pth -### 2> %t.log
+// RUN: FileCheck -check-prefix CHECK1 -input-file %t.log %s
+
+// CHECK1: "{{.*}}/clang{{.*}}" "-cc1" {{.*}} "-o" "{{.*}}.h.pth" "-x" "c-header" "{{.*}}pth.c"
+
+// RUN: touch %t.h.pth
+// RUN: %clang -no-canonical-prefixes -ccc-pch-is-pth -E -include %t.h %s -### 2> %t.log
+// RUN: FileCheck -check-prefix CHECK2 -input-file %t.log %s
+
+// CHECK2: "{{.*}}/clang{{.*}}" "-cc1" {{.*}}"-include-pth" "{{.*}}.h.pth" {{.*}}"-x" "c" "{{.*}}pth.c"