diff options
Diffstat (limited to 'meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0010-Fix-atomic-side-effects.patch')
| -rw-r--r-- | meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0010-Fix-atomic-side-effects.patch | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0010-Fix-atomic-side-effects.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0010-Fix-atomic-side-effects.patch deleted file mode 100644 index c21ca816f..000000000 --- a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gcc/gcc-7/0010-Fix-atomic-side-effects.patch +++ /dev/null @@ -1,69 +0,0 @@ -From c1e8a1419e8f5d18e7135fb4fe3bf21941125008 Mon Sep 17 00:00:00 2001 -From: Mahesh Bodapati <mbodapat@xilinx.com> -Date: Sat, 26 Aug 2017 19:21:24 -0700 -Subject: [PATCH] Fix atomic side effects. - -In atomic_compare_and_swapsi, add side effects to prevent incorrect -assumptions during optimization. Previously, the outputs were considered -unused; this generated assembly code with undefined side effects after -invocation of the atomic. - -Signed-off-by: Kirk Meyer <kirk.meyer@sencore.com> -Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com> -Signed-off-by: Mahesh Bodapati <mbodapat@xilinx.com> -Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com> -Upstream-Status: Pending ---- - gcc/config/microblaze/microblaze.md | 3 +++ - gcc/config/microblaze/sync.md | 21 +++++++++++++-------- - 2 files changed, 16 insertions(+), 8 deletions(-) - -diff --git a/gcc/config/microblaze/microblaze.md b/gcc/config/microblaze/microblaze.md -index 8a372d7ebb..59d629b559 100644 ---- a/gcc/config/microblaze/microblaze.md -+++ b/gcc/config/microblaze/microblaze.md -@@ -41,6 +41,9 @@ - (UNSPEC_CMP 104) ;; signed compare - (UNSPEC_CMPU 105) ;; unsigned compare - (UNSPEC_TLS 106) ;; jump table -+ (UNSPECV_CAS_BOOL 201) ;; compare and swap (bool) -+ (UNSPECV_CAS_VAL 202) ;; compare and swap (val) -+ (UNSPECV_CAS_MEM 203) ;; compare and swap (mem) - ]) - - (define_c_enum "unspec" [ -diff --git a/gcc/config/microblaze/sync.md b/gcc/config/microblaze/sync.md -index 8125bd8d63..edf4bdd811 100644 ---- a/gcc/config/microblaze/sync.md -+++ b/gcc/config/microblaze/sync.md -@@ -18,14 +18,19 @@ - ;; <http://www.gnu.org/licenses/>. - - (define_insn "atomic_compare_and_swapsi" -- [(match_operand:SI 0 "register_operand" "=&d") ;; bool output -- (match_operand:SI 1 "register_operand" "=&d") ;; val output -- (match_operand:SI 2 "nonimmediate_operand" "+Q") ;; memory -- (match_operand:SI 3 "register_operand" "d") ;; expected value -- (match_operand:SI 4 "register_operand" "d") ;; desired value -- (match_operand:SI 5 "const_int_operand" "") ;; is_weak -- (match_operand:SI 6 "const_int_operand" "") ;; mod_s -- (match_operand:SI 7 "const_int_operand" "") ;; mod_f -+ [(set (match_operand:SI 0 "register_operand" "=&d") ;; bool output -+ (unspec_volatile:SI -+ [(match_operand:SI 2 "nonimmediate_operand" "+Q") ;; memory -+ (match_operand:SI 3 "register_operand" "d") ;; expected value -+ (match_operand:SI 4 "register_operand" "d")] ;; desired value -+ UNSPECV_CAS_BOOL)) -+ (set (match_operand:SI 1 "register_operand" "=&d") ;; val output -+ (unspec_volatile:SI [(const_int 0)] UNSPECV_CAS_VAL)) -+ (set (match_dup 2) -+ (unspec_volatile:SI [(const_int 0)] UNSPECV_CAS_MEM)) -+ (match_operand:SI 5 "const_int_operand" "") ;; is_weak -+ (match_operand:SI 6 "const_int_operand" "") ;; mod_s -+ (match_operand:SI 7 "const_int_operand" "") ;; mod_f - (clobber (match_scratch:SI 8 "=&d"))] - "" - { --- -2.14.2 - |