[toolchain] gcc: fix 4.2.4 ICE on avr32 (see http://gcc.gnu.org/bugzilla/show_bug...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15434 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/toolchain/gcc/patches/4.2.4/952-bug_34762.patch b/toolchain/gcc/patches/4.2.4/952-bug_34762.patch
new file mode 100644 (file)
index 0000000..1ccd968
--- /dev/null
+++ b/toolchain/gcc/patches/4.2.4/952-bug_34762.patch
@@ -0,0 +1,49 @@
+http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34762
+
+--- a/gcc/reload.c
++++ b/gcc/reload.c
+@@ -4789,7 +4789,7 @@ find_reloads_address (enum machine_mode 
+                 find_reloads_address (GET_MODE (tem), &tem, XEXP (tem, 0),
+                                       &XEXP (tem, 0), opnum,
+                                       ADDR_TYPE (type), ind_levels, insn);
+-                if (tem != orig)
++                if (!rtx_equal_p (tem, orig))
+                   push_reg_equiv_alt_mem (regno, tem);
+               }
+             /* We can avoid a reload if the register's equivalent memory
+@@ -5589,7 +5589,7 @@ find_reloads_address_1 (enum machine_mod
+                                     RELOAD_OTHER,
+                                     ind_levels, insn);
+ 
+-              if (tem != orig)
++              if (!rtx_equal_p (tem, orig))
+                 push_reg_equiv_alt_mem (regno, tem);
+ 
+               /* Then reload the memory location into a base
+@@ -5656,7 +5656,7 @@ find_reloads_address_1 (enum machine_mod
+                 find_reloads_address (GET_MODE (tem), &tem, XEXP (tem, 0),
+                                       &XEXP (tem, 0), opnum, type,
+                                       ind_levels, insn);
+-                if (tem != orig)
++                if (!rtx_equal_p (tem, orig))
+                   push_reg_equiv_alt_mem (regno, tem);
+                 /* Put this inside a new increment-expression.  */
+                 x = gen_rtx_fmt_e (GET_CODE (x), GET_MODE (x), tem);
+@@ -5848,7 +5848,7 @@ find_reloads_address_1 (enum machine_mod
+               find_reloads_address (GET_MODE (x), &x, XEXP (x, 0),
+                                     &XEXP (x, 0), opnum, ADDR_TYPE (type),
+                                     ind_levels, insn);
+-              if (x != tem)
++              if (!rtx_equal_p (x, tem))
+                 push_reg_equiv_alt_mem (regno, x);
+             }
+         }
+@@ -6076,7 +6076,7 @@ find_reloads_subreg_address (rtx x, int 
+                                              XEXP (tem, 0), &XEXP (tem, 0),
+                                              opnum, type, ind_levels, insn);
+             /* ??? Do we need to handle nonzero offsets somehow?  */
+-            if (!offset && tem != orig)
++            if (!offset && !rtx_equal_p (tem, orig))
+               push_reg_equiv_alt_mem (regno, tem);
+ 
+             /* For some processors an address may be valid in the