2011-05-30 Yao Qi <yao@codesourcery.com>

* gdb.base/varargs.c (find_max_float_real): New.
        (find_max_double_real, find_max_long_double_real): New.
        * gdb.base/varargs.exp: Call these new added functions.
	* lib/gdb.exp (setup_kfail_for_target): New.

gdb/testsuite/ChangeLog

@@ -1,3 +1,10 @@
+2011-05-30  Yao Qi  <yao@codesourcery.com>
+
+        * gdb.base/varargs.c (find_max_float_real): New.
+        (find_max_double_real, find_max_long_double_real): New.
+        * gdb.base/varargs.exp: Call these new added functions.
+	* lib/gdb.exp (setup_kfail_for_target): New.
+
 2011-05-30  Yao Qi  <yao@codesourcery.com>
 
 	* gdb.base/funcargs.c (callca, callcb, callcc): New.

gdb/testsuite/gdb.base/varargs.c

@@ -23,6 +23,28 @@ float fa,fb,fc,fd;
 double da,db,dc,dd;
 double dmax_val;
 
+#ifdef TEST_COMPLEX
+extern float crealf (float _Complex);
+extern double creal (double _Complex);
+extern long double creall (long double _Complex);
+
+float _Complex fc1 = 1.0F + 1.0iF;
+float _Complex fc2 = 2.0F + 2.0iF;
+float _Complex fc3 = 3.0F + 3.0iF;
+float _Complex fc4 = 4.0F + 4.0iF;
+
+double _Complex dc1 = 1.0 + 1.0i;
+double _Complex dc2 = 2.0 + 2.0i;
+double _Complex dc3 = 3.0 + 3.0i;
+double _Complex dc4 = 4.0 + 4.0i;
+
+long double _Complex ldc1 = 1.0L + 1.0Li;
+long double _Complex ldc2 = 2.0L + 2.0Li;
+long double _Complex ldc3 = 3.0L + 3.0Li;
+long double _Complex ldc4 = 4.0L + 4.0Li;
+
+#endif
+
 int main() {
   c = -1;
   uc = 1;
@@ -109,3 +131,61 @@ double find_max_double(int num_vals, double first_val, ...) {
   return max_val;
 }
 
+
+#ifdef TEST_COMPLEX
+float _Complex
+find_max_float_real (int num_vals, ...)
+{
+  float _Complex max = 0.0F + 0.0iF;
+  float _Complex x;
+  va_list argp;
+  int i;
+
+  va_start(argp, num_vals);
+  for (i = 0; i < num_vals; i++)
+    {
+      x = va_arg (argp, float _Complex);
+      if (crealf (max) < crealf (x)) max = x;
+    }
+
+  return max;
+}
+
+double _Complex
+find_max_double_real (int num_vals, ...)
+{
+  double _Complex max = 0.0 + 0.0i;
+  double _Complex x;
+  va_list argp;
+  int i;
+
+  va_start(argp, num_vals);
+  for (i = 0; i < num_vals; i++)
+    {
+      x = va_arg (argp, double _Complex);
+      if (creal (max) < creal (x)) max = x;
+    }
+
+  return max;
+}
+
+long double _Complex
+find_max_long_double_real (int num_vals, ...)
+{
+  long double _Complex max = 0.0L + 0.0iL;
+  long double _Complex x;
+  va_list argp;
+  int i;
+
+  va_start(argp, num_vals);
+  for (i = 0; i < num_vals; i++)
+    {
+      x = va_arg (argp, long double _Complex);
+      if (creall (max) < creal (x)) max = x;
+    }
+
+  return max;
+}
+
+
+#endif /* TEST_COMPLEX */

gdb/testsuite/gdb.base/varargs.exp

@@ -44,6 +44,9 @@ if [get_compiler_info ${binfile}] {
 }
 
 set additional_flags {debug}
+if [support_complex_tests] {
+    lappend additional_flags "additional_flags=-DTEST_COMPLEX"
+}
 
 if {$hp_cc_compiler} {
     lappend additional_flags "additional_flags=-Ae"
@@ -112,3 +115,26 @@ if {![target_info exists gdb,skip_float_tests]} {
 	"print find_max_double(5,1.0,17.0,2.0,3.0,4.0)"
 }
 
+
+# Test _Complex type here if supported.
+if [support_complex_tests] {
+    global gdb_prompt
+
+    set test "print find_max_float_real(4, fc1, fc2, fc3, fc4)"
+    setup_kfail_for_target gdb/12790 "x86_64-*-*"
+    setup_kfail_for_target gdb/12791 "arm*-*-*"
+    gdb_test $test ".*= 4 \\+ 4 \\* I" $test
+
+    set test "print find_max_double_real(4, dc1, dc2, dc3, dc4)"
+    setup_kfail_for_target gdb/12776 "i?86-*-*"
+    setup_kfail_for_target gdb/12790 "x86_64-*-*"
+    setup_kfail_for_target gdb/12791 "arm*-*-*"
+    gdb_test $test ".*= 4 \\+ 4 \\* I" $test
+
+    set test "print find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)"
+    setup_kfail_for_target gdb/12776 "i?86-*-*"
+    setup_kfail_for_target gdb/12790 "x86_64-*-*"
+    setup_kfail_for_target gdb/12791 "arm*-*-*"
+    gdb_test $test ".*= 4 \\+ 4 \\* I" $test
+
+}

gdb/testsuite/lib/gdb.exp

@@ -2996,6 +2996,14 @@ proc setup_xfail_format { format } {
     return $ret;
 }
 
+# Like setup_kfail, but only call setup_kfail conditionally if
+# istarget[TARGET] returns true.
+proc setup_kfail_for_target { PR target } {
+    if { [istarget $target] } {
+	setup_kfail $PR $target
+    }
+}
+
 proc gdb_step_for_stub { } {
     global gdb_prompt;