From ff7f2c16bd45016c8d3f8aae4339e63c3d524259 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Thu, 25 Jun 2020 09:20:00 +0200 Subject: gcc: move patches around --- .../8.4.0/0002-xtensa-fix-PR-target-91880.patch | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 toolchain/gcc/patches/8.4.0/0002-xtensa-fix-PR-target-91880.patch (limited to 'toolchain/gcc/patches/8.4.0/0002-xtensa-fix-PR-target-91880.patch') diff --git a/toolchain/gcc/patches/8.4.0/0002-xtensa-fix-PR-target-91880.patch b/toolchain/gcc/patches/8.4.0/0002-xtensa-fix-PR-target-91880.patch new file mode 100644 index 000000000..e65352501 --- /dev/null +++ b/toolchain/gcc/patches/8.4.0/0002-xtensa-fix-PR-target-91880.patch @@ -0,0 +1,49 @@ +From 7c11710230921246156aecc20eb4b6ccaeaaa473 Mon Sep 17 00:00:00 2001 +From: Max Filippov +Date: Tue, 24 Sep 2019 04:15:17 -0700 +Subject: [PATCH] xtensa: fix PR target/91880 + +Xtensa hwloop_optimize segfaults when zero overhead loop is about to be +inserted as the first instruction of the function. +Insert zero overhead loop instruction into new basic block before the +loop when basic block that precedes the loop is empty. + +2019-09-26 Max Filippov +gcc/ + * config/xtensa/xtensa.c (hwloop_optimize): Insert zero overhead + loop instruction into new basic block before the loop when basic + block that precedes the loop is empty. + +Signed-off-by: Max Filippov +--- +Backported from: r276166 + + gcc/config/xtensa/xtensa.c | 5 ++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c +index ee5612441e25..2527468d57db 100644 +--- a/gcc/config/xtensa/xtensa.c ++++ b/gcc/config/xtensa/xtensa.c +@@ -4232,7 +4232,9 @@ hwloop_optimize (hwloop_info loop) + + seq = get_insns (); + +- if (!single_succ_p (entry_bb) || vec_safe_length (loop->incoming) > 1) ++ entry_after = BB_END (entry_bb); ++ if (!single_succ_p (entry_bb) || vec_safe_length (loop->incoming) > 1 ++ || !entry_after) + { + basic_block new_bb; + edge e; +@@ -4253,7 +4255,6 @@ hwloop_optimize (hwloop_info loop) + } + else + { +- entry_after = BB_END (entry_bb); + while (DEBUG_INSN_P (entry_after) + || (NOTE_P (entry_after) + && NOTE_KIND (entry_after) != NOTE_INSN_BASIC_BLOCK)) +-- +2.11.0 + -- cgit v1.2.3