Add latest gcc patch for AVR32 gcc-4.2.2 prepatched source

diff --git a/toolchain/gcc/ext_source/Atmel/avr32/4.2.2-avr32-2.1.5/903-avr32-fix-removal-of-redundant-cast-operations.patch b/toolchain/gcc/ext_source/Atmel/avr32/4.2.2-avr32-2.1.5/903-avr32-fix-removal-of-redundant-cast-operations.patch
new file mode 100644 (file)
index 0000000..59ecbff
--- /dev/null
+++ b/toolchain/gcc/ext_source/Atmel/avr32/4.2.2-avr32-2.1.5/903-avr32-fix-removal-of-redundant-cast-operations.patch
@@ -0,0 +1,16 @@
+Index: trunk/gcc/config/avr32/avr32.c
+===================================================================
+--- trunk/gcc/config/avr32/avr32.c     (revision 43495)
++++ trunk/gcc/config/avr32/avr32.c     (revision 43496)
+@@ -6499,6 +6499,11 @@
+                   break;
+               }
+ 
++              /* Check if we have a call and the register is used as an argument. */
++              if (CALL_P (scan)
++                  && find_reg_fusage (scan, USE, reg) )
++                break;
++
+             if (!reg_mentioned_p (reg, PATTERN (scan)))
+               continue;
+