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| author | Ulf Samuelsson <ulf.samuelsson@atmel.com> | 2009-01-23 23:03:25 +0000 |
|---|---|---|
| committer | Ulf Samuelsson <ulf.samuelsson@atmel.com> | 2009-01-23 23:03:25 +0000 |
| commit | ecdd71417c62351fdd6db144eb508dbefa264e3e (patch) | |
| tree | 5abc19b1ec1852dff43717bacc990a99a8cfdf9b /toolchain | |
| parent | 2b192f0815973e032c6f58c98043d0712bd6eede (diff) | |
| download | buildroot-novena-ecdd71417c62351fdd6db144eb508dbefa264e3e.tar.gz buildroot-novena-ecdd71417c62351fdd6db144eb508dbefa264e3e.zip | |
Fix unroll bug for ARM toolchain
Diffstat (limited to 'toolchain')
| -rw-r--r-- | toolchain/gcc/4.3.2/306-arm-funroll-loops.patch.arm | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/toolchain/gcc/4.3.2/306-arm-funroll-loops.patch.arm b/toolchain/gcc/4.3.2/306-arm-funroll-loops.patch.arm new file mode 100644 index 000000000..dadaf32ac --- /dev/null +++ b/toolchain/gcc/4.3.2/306-arm-funroll-loops.patch.arm @@ -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 +=================================================================== +--- gcc/regrename.c (revision 197947) ++++ 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) |