New bitfield testcases.

2020-01-05  Andrew Pinski  <apinski@marvell.com>

        * gcc.c-torture/compile/20200105-1.c: New testcase.
        * gcc.c-torture/compile/20200105-2.c: New testcase.
        * gcc.c-torture/compile/20200105-3.c: New testcase.

From-SVN: r279893

gcc/testsuite/ChangeLog

+2020-01-05  Andrew Pinski  <apinski@marvell.com>
+
+	* gcc.c-torture/compile/20200105-1.c: New testcase.
+	* gcc.c-torture/compile/20200105-2.c: New testcase.
+	* gcc.c-torture/compile/20200105-3.c: New testcase.
+
 2020-01-05  Iain Sandoe  <iain@sandoe.co.uk>
 
 	* gcc.dg/darwin-version-1.c: Adjust test to use different

gcc/testsuite/gcc.c-torture/compile/20200105-1.c

+struct mouse_button_str {
+        unsigned char left      : 1;
+        unsigned char right     : 1;
+        unsigned char middle    : 1;
+        };
+int g(void)
+{
+  signed char a = 0;
+  struct mouse_button_str *newbutton1 = (struct mouse_button_str*)&a;
+  newbutton1->left = 1;
+  return a;
+}

gcc/testsuite/gcc.c-torture/compile/20200105-2.c

+struct mouse_button_str {
+        signed char left      : 1;
+        signed char right     : 1;
+        signed char middle    : 1;
+};
+int g(void)
+{
+  unsigned char a = 0;
+  struct mouse_button_str *newbutton1 = (struct mouse_button_str*)&a;
+  newbutton1->left = 1;
+  return a;
+}

gcc/testsuite/gcc.c-torture/compile/20200105-3.c

+struct mouse_button_str {
+        unsigned char left      : 1;
+        unsigned char right     : 1;
+        unsigned char middle    : 1;
+};
+int g(void)
+{
+  unsigned char a = 0;
+  struct mouse_button_str *newbutton1 = (struct mouse_button_str*)&a;
+  newbutton1->left = 1;
+  return a;
+}