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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)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14505 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2009-02-14 00:09:27 +00:00
parent 6ce4ee38eb
commit f9e546b068
3 changed files with 72 additions and 0 deletions
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24
toolchain/gcc/patches/4.3.1/400-arm_register_fix.patch Normal file
View File

@ -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)

24
toolchain/gcc/patches/4.3.2/400-arm_register_fix.patch Normal file
View File

@ -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)

24
toolchain/gcc/patches/4.3.3/400-arm_register_fix.patch Normal file
View File

@ -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)