[llvm-commits] CVS: llvm/test/Programs/SingleSource/UnitTests/2003-05-07-VarArgs.c

[Vikram Adve]

Changes in directory llvm/test/Programs/SingleSource/UnitTests:

2003-05-07-VarArgs.c updated: 1.3 -> 1.4

---
Log message:

Add tests for passing structures by value through varargs.
Also modify test to pass more arguments than fit in the argument registers.


---
Diffs of the changes:

Index: llvm/test/Programs/SingleSource/UnitTests/2003-05-07-VarArgs.c
diff -u llvm/test/Programs/SingleSource/UnitTests/2003-05-07-VarArgs.c:1.3 llvm/test/Programs/SingleSource/UnitTests/2003-05-07-VarArgs.c:1.4
--- llvm/test/Programs/SingleSource/UnitTests/2003-05-07-VarArgs.c:1.3	Thu May  8 14:43:55 2003
+++ llvm/test/Programs/SingleSource/UnitTests/2003-05-07-VarArgs.c	Sun May 25 10:56:54 2003
@@ -1,10 +1,23 @@
 #include <stdio.h>
 #include <stdarg.h>
 
+/* 5 bytes. */
+typedef struct DWordS_struct    { int i; char c; } DWordS;
+
+/* 12 bytes if d is 4-byte aligned; 16 bytes if d is 8-byte aligned. */
+typedef struct QuadWordS_struct { int i; double d; } QuadWordS;
+
+/* 20 bytes if d is 4-byte aligned; 28 bytes if d is 8-byte aligned
+ * (assuming pointer size is 4 bytes and 8 bytes respectively). */
+typedef struct LargeS_struct { int i; double d; DWordS* ptr; int j; } LargeS;
+
 void test(char *fmt, ...) {
   va_list ap, aq;
   int d;
   char c, *s;
+  DWordS dw;
+  QuadWordS qw;
+  LargeS ls;
 
   va_start(ap, fmt);
 
@@ -33,14 +46,35 @@
       c = (char) va_arg(ap, int);
       printf("char %c\n", c);
       break;
+    case 'D':
+      /* dw = va_arg(ap, DWordS);
+      printf("DWord { %d, %c }\n", dw.i, dw.c);
+      */ break;
+    case 'Q':
+      /* qw = va_arg(ap, QuadWordS);
+      printf("QuadWord { %d, %f }\n", qw.i, qw.d);
+      */ break;
+    case 'L':
+      /* ls = va_arg(ap, LargeS);
+      printf("LargeS { %d, %f, 0x%p, %d }\n", ls.i, ls.d, ls.ptr, ls.j);
+      */ break;
     }
   va_end(ap);
 }
 
 int main() {
-  test("ssici", "abc", "def", -123, 'a', 123);
+  DWordS dw = { 18, 'a' };
+  DWordS dw2;
+  QuadWordS qw = { 19, 20.0 };
+  LargeS ls = { 21, 22.0, &dw, 23 };
+
+  test("ssiciiiiis", "abc", "def", -123, 'a', 123, 6, 7, 8, 9, "10 args done!");
 
   /* test promotion & 64-bit types */
   test("ddil", 1.0, 2.0f, (short)32764, 12345677823423LL);
+
+  /* test passing structs by value to varargs */
+  test("DQL", dw2, qw, ls);
+
   return 0;
 }