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authorFelix Fietkau <nbd@openwrt.org>2009-02-14 00:09:27 +0000
committerFelix Fietkau <nbd@openwrt.org>2009-02-14 00:09:27 +0000
commit152887e42470227a0fdcf32e62802290d9cd5bd8 (patch)
treee3bae0b4667d43844aa3d05c1bcd5d998131d26a /toolchain/gcc/patches/4.3.3
parente697d8c27ff1a8d8e691bb2fe767bbe25ea8a684 (diff)
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fix gcc 4.3.x segfault triggered by using -frename-registers (reproduced on arm, might be relevant for other platforms as well)
SVN-Revision: 14505
Diffstat (limited to 'toolchain/gcc/patches/4.3.3')
-rw-r--r--toolchain/gcc/patches/4.3.3/400-arm_register_fix.patch24
1 files changed, 24 insertions, 0 deletions
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
index 0000000000..2fb5aa627c
--- /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)