re PR target/34734 ([avr] attribute((progmem)) not handled properly in C++)

	PR target/34734
	PR target/44643
	* gcc.target/avr/avr.exp: Run over cpp files, too.
	* gcc.target/avr/torture/avr-torture.exp: Ditto.
	* gcc.target/avr/progmem.h: New file.
	* gcc.target/avr/exit-abort.h: New file.
	* gcc.target/avr/progmem-error-1.c: New file.
	* gcc.target/avr/progmem-error-1.cpp: New file.
	* gcc.target/avr/progmem-warning-1.c: New file.
	* gcc.target/avr/torture/progmem-1.c: New file.
	* gcc.target/avr/torture/progmem-1.cpp: New file.

From-SVN: r175811

gcc/testsuite/ChangeLog

+2011-07-04  Georg-Johann Lay  <avr@gjlay.de>
+	
+	PR target/34734
+	PR target/44643
+	* gcc.target/avr/avr.exp: Run over cpp files, too.
+	* gcc.target/avr/torture/avr-torture.exp: Ditto.
+	* gcc.target/avr/progmem.h: New file.
+	* gcc.target/avr/exit-abort.h: New file.
+	* gcc.target/avr/progmem-error-1.c: New file.
+	* gcc.target/avr/progmem-error-1.cpp: New file.
+	* gcc.target/avr/progmem-warning-1.c: New file.
+	* gcc.target/avr/torture/progmem-1.c: New file.
+	* gcc.target/avr/torture/progmem-1.cpp: New file.
+
 2011-07-04  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/49615

gcc/testsuite/gcc.target/avr/avr.exp

@@ -34,7 +34,7 @@ if ![info exists DEFAULT_CFLAGS] then {
 dg-init
 
 # Main loop.
-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cCS\]]] \
+dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.{\[cCS\],cpp}]] \
 	"" $DEFAULT_CFLAGS
 
 # All done.

gcc/testsuite/gcc.target/avr/exit-abort.h

+#ifdef __cplusplus
+extern "C" {
+#endif
+  extern void exit (int);
+  extern void abort (void);
+#ifdef __cplusplus
+}
+#endif

gcc/testsuite/gcc.target/avr/progmem-error-1.c

+/* { dg-do compile } */
+
+#include "progmem.h"
+
+char str[] PROGMEM = "Hallo"; /* { dg-error "must be const" } */

gcc/testsuite/gcc.target/avr/progmem-error-1.cpp

+/* { dg-do compile } */
+
+#include "progmem.h"
+
+char str[] PROGMEM = "Hallo"; /* { dg-error "must be const" } */

gcc/testsuite/gcc.target/avr/progmem-warning-1.c

+/* PR target/34734 */
+/* { dg-do compile } */
+/* { dg-options "-Wuninitialized" } */
+
+#include "progmem.h"
+
+const char c PROGMEM; /* { dg-warning "uninitialized variable 'c' put into program memory area" } */

gcc/testsuite/gcc.target/avr/progmem.h

+#define PROGMEM __attribute__((progmem))
+
+#define PSTR(s)                                             \
+    (__extension__({                                        \
+            static const char __c[] PROGMEM = (s);          \
+            &__c[0];}))
+
+#define pgm_read_char(addr)                                 \
+    (__extension__({                                        \
+            unsigned int __addr16 = (unsigned int)(addr);   \
+            char __result;                                  \
+            __asm__ ("lpm %0, %a1"                          \
+                     : "=r" (__result) : "z" (__addr16));   \
+            __result; }))

gcc/testsuite/gcc.target/avr/torture/avr-torture.exp

@@ -52,7 +52,7 @@ set-torture-options $AVR_TORTURE_OPTIONS
 
 
 # Main loop.
-gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cS\]]] $DEFAULT_CFLAGS
+gcc-dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.{\[cS\],cpp}]] $DEFAULT_CFLAGS
 
 # Finalize use of torture lists.
 torture-finish

gcc/testsuite/gcc.target/avr/torture/progmem-1.c

+/* { dg-do run } */
+
+#include "../exit-abort.h"
+#include "../progmem.h"
+
+const char strA[] PROGMEM = "@A";
+const char strc PROGMEM = 'c';
+
+unsigned int volatile s = 2;
+
+int main()
+{
+    char c;
+    
+    c = pgm_read_char (&strA[s-1]);
+    if (c != 'A')
+        abort();
+
+    c = pgm_read_char (&PSTR ("@@B")[s]);
+    if (c != 'B')
+        abort();
+
+    c = pgm_read_char (&strc);
+    if (c != 'c')
+        abort();
+
+    exit (0);
+
+    return 0;
+}

gcc/testsuite/gcc.target/avr/torture/progmem-1.cpp

+/* { dg-do run } */
+#include "progmem-1.c"