gdb/testsuite/

	Test inf-call of varargs of type _Complex.
	* 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.

From c2ebad1f79857052030c535ba0c647ddf798f2c1 Mon Sep 17 00:00:00 2001
From: Yao Qi <yao@codesourcery.com>
Date: Wed, 18 May 2011 15:35:31 +0800
Subject: [PATCH 2/4] vararg of type _Complex

---
 gdb/testsuite/gdb.base/varargs.c   |   80 ++++++++++++++++++++++++++++++++++++
 gdb/testsuite/gdb.base/varargs.exp |   38 +++++++++++++++++
 2 files changed, 118 insertions(+), 0 deletions(-)

diff --git a/gdb/testsuite/gdb.base/varargs.c b/gdb/testsuite/gdb.base/varargs.c
index 1122767..1ad2ffc 100644
--- a/gdb/testsuite/gdb.base/varargs.c
+++ b/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 */
diff --git a/gdb/testsuite/gdb.base/varargs.exp b/gdb/testsuite/gdb.base/varargs.exp
index 4627862..2a6c53b 100644
--- a/gdb/testsuite/gdb.base/varargs.exp
+++ b/gdb/testsuite/gdb.base/varargs.exp
@@ -44,6 +44,9 @@ if [get_compiler_info ${binfile}] {
 }
 
 set additional_flags {debug}
+if [support_complex_tests] {
+    set additional_flags "$additional_flags additional_flags=-DTEST_COMPLEX"
+}
 
 if {$hp_cc_compiler} {
     lappend additional_flags "additional_flags=-Ae"
@@ -112,3 +115,38 @@ 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
+
+    gdb_test_multiple "print find_max_float_real(4, fc1, fc2, fc3, fc4)" \
+	"print find_max_float_real(4, fc1, fc2, fc3, fc4)" {
+	-re ".*= 4 \\+ 4 \\* I.*$gdb_prompt $" {
+	    pass "print find_max_float_real(4, fc1, fc2, fc3, fc4)"
+	}
+	-re ".*$gdb_prompt $" {
+	    kfail gdb/12776 "print find_max_float_real(4, fc1, fc2, fc3, fc4)"
+	}
+    }
+
+    gdb_test_multiple "print find_max_double_real(4, dc1, dc2, dc3, dc4)" \
+	"print find_max_double_real(4, dc1, dc2, dc3, dc4)" {
+	-re ".*= 4 \\+ 4 \\* I.*${gdb_prompt} $" {
+	    pass "print find_max_float_real(4, fc1, fc2, fc3, fc4)"
+	}
+	-re ".*$gdb_prompt $" {
+	    kfail gdb/12776 "print find_max_double_real(4, dc1, dc2, dc3, dc4)"
+	}
+    }
+    gdb_test_multiple "print find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)" \
+	"print find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)" {
+	 -re ".*= 4 \\+ 4 \\* I.*${gdb_prompt} $" {
+	     pass "print find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)"
+	 }
+	 -re ".*$gdb_prompt $" {
+	    kfail gdb/12776 "print find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)"
+	}
+    }
+
+}
-- 
1.7.0.4