Migrate CodeGen/2007-03-05-DataLayout.c from test/FrontendC with changes

to remove header file includes.

llvm-svn: 136134

clang/test/CodeGen/2007-03-05-DataLayout.c

@@ -0,0 +1,55 @@
+// Testcase for PR1242
+// RUN: %clang_cc1 -emit-llvm %s -o - | grep datalayout | \
+// RUN:    not grep {"\[Ee\]-p:\[36\]\[24\]:\[36\]\[24\]"}
+// END.
+
+typedef __SIZE_TYPE__ size_t;
+void * malloc(size_t size);
+#define NDIM 3
+#define BODY 01
+typedef double vector[NDIM];
+typedef struct bnode* bodyptr;
+// { i16, double, [3 x double], i32, i32, [3 x double], [3 x double], [3 x
+// double], double, \2 *, \2 * }
+struct bnode {
+  short int type;
+  double mass;
+  vector pos;
+  int proc;
+  int new_proc;
+  vector vel;
+  vector acc;
+  vector new_acc;
+  double phi;
+  bodyptr next;
+  bodyptr proc_next;
+} body;
+
+#define Type(x) ((x)->type)
+#define Mass(x) ((x)->mass)
+#define Pos(x)  ((x)->pos)
+#define Proc(x) ((x)->proc)
+#define New_Proc(x) ((x)->new_proc)
+#define Vel(x)  ((x)->vel)
+#define Acc(x)  ((x)->acc)
+#define New_Acc(x)  ((x)->new_acc)
+#define Phi(x)  ((x)->phi)
+#define Next(x) ((x)->next)
+#define Proc_Next(x) ((x)->proc_next)
+
+bodyptr ubody_alloc(int p)
+{
+  register bodyptr tmp;
+  tmp = (bodyptr)malloc(sizeof(body));
+
+  Type(tmp) = BODY;
+  Proc(tmp) = p;
+  Proc_Next(tmp) = NULL;
+  New_Proc(tmp) = p;
+  return tmp;
+}
+
+int main(int argc, char** argv) {
+  bodyptr b = ubody_alloc(17);
+  return 0;
+}