This reverts a commit from GCC which causes boot problems with ath79 boards with MIPS 74Kc CPUs. The kernel crashed like this: [ 0.097796] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.107070] Kernel panic - not syncing: Unexpected DSP exception [ 0.113470] Rebooting in 1 seconds..
The following GCC ticket was opened: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94506 Fixes: FS#2928 Signed-off-by: Hauke Mehrtens <ha...@hauke-m.de> --- ...e-optimization-91355-optimized-code-.patch | 46 +++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 toolchain/gcc/patches/8.4.0/200-Revert-re-PR-tree-optimization-91355-optimized-code-.patch diff --git a/toolchain/gcc/patches/8.4.0/200-Revert-re-PR-tree-optimization-91355-optimized-code-.patch b/toolchain/gcc/patches/8.4.0/200-Revert-re-PR-tree-optimization-91355-optimized-code-.patch new file mode 100644 index 000000000000..0fbab6ebf569 --- /dev/null +++ b/toolchain/gcc/patches/8.4.0/200-Revert-re-PR-tree-optimization-91355-optimized-code-.patch @@ -0,0 +1,46 @@ +From e73998c880ed37d41a926ce9e2aa9c143eb7077a Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens <ha...@hauke-m.de> +Date: Mon, 6 Apr 2020 21:15:31 +0200 +Subject: [PATCH] Revert "re PR tree-optimization/91355 (optimized code does + not call destructor while unwinding after exception)" + +This reverts commit 9fe0f3b6468871448bf40751a4f30cf20118ce6a. +--- + gcc/ChangeLog | 4 ---- + gcc/testsuite/ChangeLog | 3 --- + gcc/testsuite/g++.dg/torture/pr91355.C | 28 -------------------------- + gcc/tree-ssa-sink.c | 2 +- + 4 files changed, 1 insertion(+), 36 deletions(-) + delete mode 100644 gcc/testsuite/g++.dg/torture/pr91355.C + +diff --git a/gcc/ChangeLog b/gcc/ChangeLog +index 142499c563c..5b83f1b2370 100644 +--- a/gcc/ChangeLog ++++ b/gcc/ChangeLog +@@ -644,10 +644,6 @@ + + 2019-11-21 Jakub Jelinek <ja...@redhat.com> + +- PR tree-optimization/91355 +- * tree-ssa-sink.c (select_best_block): Use >= rather than > +- for early_bb scaled count with best_bb count comparison. +- + Backported from mainline + 2019-11-20 Jakub Jelinek <ja...@redhat.com> + +diff --git a/gcc/tree-ssa-sink.c b/gcc/tree-ssa-sink.c +index 5ac18289d90..345ed2b0329 100644 +--- a/gcc/tree-ssa-sink.c ++++ b/gcc/tree-ssa-sink.c +@@ -229,7 +229,7 @@ select_best_block (basic_block early_bb, + /* If result of comparsion is unknown, preffer EARLY_BB. + Thus use !(...>=..) rather than (...<...) */ + && !(best_bb->count.apply_scale (100, 1) +- >= early_bb->count.apply_scale (threshold, 1))) ++ > (early_bb->count.apply_scale (threshold, 1)))) + return best_bb; + + /* No better block found, so return EARLY_BB, which happens to be the +-- +2.20.1 + -- 2.20.1 _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
