[clang-tools-extra] Add support for plain C structs in clang-reorder-fields

This diff updates the tool clang-reorder-fields
to enable reordering of fields of plain C structs.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D35329

llvm-svn: 308678

1 files changed, 14 insertions, 0 deletions

diff --git a/clang-tools-extra/test/clang-reorder-fields/PlainCStructFieldsOrder.c b/clang-tools-extra/test/clang-reorder-fields/PlainCStructFieldsOrder.c
new file mode 100644
index 00000000000..5b4fe9e654e
--- /dev/null
+++ b/clang-tools-extra/test/clang-reorder-fields/PlainCStructFieldsOrder.c
@@ -0,0 +1,14 @@
+// RUN: clang-reorder-fields -record-name Foo -fields-order z,w,y,x %s -- | FileCheck %s
+
+struct Foo {
+  const int* x; // CHECK:      {{^  double z;}}
+  int y;        // CHECK-NEXT: {{^  int w;}}
+  double z;     // CHECK-NEXT: {{^  int y;}}
+  int w;        // CHECK-NEXT: {{^  const int\* x}}
+};
+
+int main() {
+  const int x = 13;
+  struct Foo foo = { &x, 0, 1.29, 17 }; // CHECK: {{^  struct Foo foo = { 1.29, 17, 0, &x };}} 
+  return 0;
+}