fix gcc 4.3.x segfault triggered by using -frename-registers (reproduced on arm,...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14505 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/toolchain/gcc/patches/4.3.1/400-arm_register_fix.patch b/toolchain/gcc/patches/4.3.1/400-arm_register_fix.patch
new file mode 100644 (file)
index 0000000..2fb5aa6
--- /dev/null
+++ b/toolchain/gcc/patches/4.3.1/400-arm_register_fix.patch
@@ -0,0 +1,24 @@
+Fixes GCC PR36350
+
+--- a/gcc/regrename.c
++++ b/gcc/regrename.c
+@@ -783,6 +783,10 @@ build_def_use (basic_block bb)
+               recog_data.operand_type[i] = OP_INOUT;
+           }
+ 
++        /* Unshare dup_loc RTL */
++        for (i = 0; i < recog_data.n_dups; i++)
++          *recog_data.dup_loc[i] = copy_rtx(*recog_data.dup_loc[i]);
++
+         /* Step 1: Close chains for which we have overlapping reads.  */
+         for (i = 0; i < n_ops; i++)
+           scan_rtx (insn, recog_data.operand_loc[i],
+@@ -813,7 +817,7 @@ build_def_use (basic_block bb)
+                   OP_IN, 0);
+ 
+         for (i = 0; i < recog_data.n_dups; i++)
+-          *recog_data.dup_loc[i] = copy_rtx (old_dups[i]);
++          *recog_data.dup_loc[i] = old_dups[i];
+         for (i = 0; i < n_ops; i++)
+           *recog_data.operand_loc[i] = old_operands[i];
+         if (recog_data.n_dups)

diff --git a/toolchain/gcc/patches/4.3.2/400-arm_register_fix.patch b/toolchain/gcc/patches/4.3.2/400-arm_register_fix.patch
new file mode 100644 (file)
index 0000000..2fb5aa6
--- /dev/null
+++ b/toolchain/gcc/patches/4.3.2/400-arm_register_fix.patch
@@ -0,0 +1,24 @@
+Fixes GCC PR36350
+
+--- a/gcc/regrename.c
++++ b/gcc/regrename.c
+@@ -783,6 +783,10 @@ build_def_use (basic_block bb)
+               recog_data.operand_type[i] = OP_INOUT;
+           }
+ 
++        /* Unshare dup_loc RTL */
++        for (i = 0; i < recog_data.n_dups; i++)
++          *recog_data.dup_loc[i] = copy_rtx(*recog_data.dup_loc[i]);
++
+         /* Step 1: Close chains for which we have overlapping reads.  */
+         for (i = 0; i < n_ops; i++)
+           scan_rtx (insn, recog_data.operand_loc[i],
+@@ -813,7 +817,7 @@ build_def_use (basic_block bb)
+                   OP_IN, 0);
+ 
+         for (i = 0; i < recog_data.n_dups; i++)
+-          *recog_data.dup_loc[i] = copy_rtx (old_dups[i]);
++          *recog_data.dup_loc[i] = old_dups[i];
+         for (i = 0; i < n_ops; i++)
+           *recog_data.operand_loc[i] = old_operands[i];
+         if (recog_data.n_dups)

diff --git a/toolchain/gcc/patches/4.3.3/400-arm_register_fix.patch b/toolchain/gcc/patches/4.3.3/400-arm_register_fix.patch
new file mode 100644 (file)
index 0000000..2fb5aa6
--- /dev/null
+++ b/toolchain/gcc/patches/4.3.3/400-arm_register_fix.patch
@@ -0,0 +1,24 @@
+Fixes GCC PR36350
+
+--- a/gcc/regrename.c
++++ b/gcc/regrename.c
+@@ -783,6 +783,10 @@ build_def_use (basic_block bb)
+               recog_data.operand_type[i] = OP_INOUT;
+           }
+ 
++        /* Unshare dup_loc RTL */
++        for (i = 0; i < recog_data.n_dups; i++)
++          *recog_data.dup_loc[i] = copy_rtx(*recog_data.dup_loc[i]);
++
+         /* Step 1: Close chains for which we have overlapping reads.  */
+         for (i = 0; i < n_ops; i++)
+           scan_rtx (insn, recog_data.operand_loc[i],
+@@ -813,7 +817,7 @@ build_def_use (basic_block bb)
+                   OP_IN, 0);
+ 
+         for (i = 0; i < recog_data.n_dups; i++)
+-          *recog_data.dup_loc[i] = copy_rtx (old_dups[i]);
++          *recog_data.dup_loc[i] = old_dups[i];
+         for (i = 0; i < n_ops; i++)
+           *recog_data.operand_loc[i] = old_operands[i];
+         if (recog_data.n_dups)