diff options
Diffstat (limited to 'toolchain/gcc/4.3.2/306-arm-funroll-loops.patch')
| -rw-r--r-- | toolchain/gcc/4.3.2/306-arm-funroll-loops.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/toolchain/gcc/4.3.2/306-arm-funroll-loops.patch b/toolchain/gcc/4.3.2/306-arm-funroll-loops.patch new file mode 100644 index 000000000..be66b4dc7 --- /dev/null +++ b/toolchain/gcc/4.3.2/306-arm-funroll-loops.patch @@ -0,0 +1,31 @@ +ChangeLog (regrename) + + gcc/ + * regrename.c: Unshare RTX earlier in build_def_use to avoid + corruption of dup_loc. + + +Index: gcc/regrename.c +=================================================================== +--- a/gcc/regrename.c (revision 197947) ++++ b/gcc/regrename.c (working copy) +@@ -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) |