From c9af134dda5a941c1addadf765e9360efe0e7766 Mon Sep 17 00:00:00 2001
From: Bruno Cardoso Lopes <bruno.cardoso@gmail.com>
Date: Fri, 28 Oct 2016 16:32:10 +0000
Subject: [Preprocessor] Support for '-dI' flag
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Implement the -dI as supported by GCC: Output ‘#include’ directives in addition
to the result of preprocessing.

This change aims to add this option, pass it through to the preprocessor via
the options class, and when inclusions occur we output some information (+ test
cases).

Patch by Steve O'Brien!

Differential Revision: https://reviews.llvm.org/D25153

llvm-svn: 285411
---
 clang/test/Preprocessor/dump_import.h  |  1 +
 clang/test/Preprocessor/dump_import.m  |  6 ++++++
 clang/test/Preprocessor/dump_include.c | 11 +++++++++++
 clang/test/Preprocessor/dump_include.h |  2 ++
 4 files changed, 20 insertions(+)
 create mode 100644 clang/test/Preprocessor/dump_import.h
 create mode 100644 clang/test/Preprocessor/dump_import.m
 create mode 100644 clang/test/Preprocessor/dump_include.c
 create mode 100644 clang/test/Preprocessor/dump_include.h

(limited to 'clang/test/Preprocessor')

diff --git a/clang/test/Preprocessor/dump_import.h b/clang/test/Preprocessor/dump_import.h
new file mode 100644
index 00000000000..fded1e52cbb
--- /dev/null
+++ b/clang/test/Preprocessor/dump_import.h
@@ -0,0 +1 @@
+#define DUMP_IMPORT_TESTVAL 1
diff --git a/clang/test/Preprocessor/dump_import.m b/clang/test/Preprocessor/dump_import.m
new file mode 100644
index 00000000000..20424ad507b
--- /dev/null
+++ b/clang/test/Preprocessor/dump_import.m
@@ -0,0 +1,6 @@
+// RUN: %clang_cc1 -E -dI %s -o - | FileCheck %s
+// CHECK: {{^}}#import "dump_
+
+// See also `dump_include.c` which tests other inclusion cases with `-dI`.
+
+#import "dump_import.h"
diff --git a/clang/test/Preprocessor/dump_include.c b/clang/test/Preprocessor/dump_include.c
new file mode 100644
index 00000000000..b98b5df7b77
--- /dev/null
+++ b/clang/test/Preprocessor/dump_include.c
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -w -E -dI -isystem %S -imacros %S/dump_include.h %s -o - | FileCheck %s
+// CHECK: {{^}}#__include_macros "/{{([^/]+/)+}}dump_
+// CHECK: {{^}}#include <dump_
+// CHECK: {{^}}#include "dump_
+// CHECK: {{^}}#include_next "dump_
+
+// See also `dump_import.m` which tests the `#import` directive with `-dI`.
+
+#include <dump_include.h>
+#include "dump_include.h"
+#include_next "dump_include.h"
diff --git a/clang/test/Preprocessor/dump_include.h b/clang/test/Preprocessor/dump_include.h
new file mode 100644
index 00000000000..9dafaa50b5c
--- /dev/null
+++ b/clang/test/Preprocessor/dump_include.h
@@ -0,0 +1,2 @@
+#pragma once
+#define DUMP_INCLUDE_TESTVAL 1
-- 
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