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* [gcc(refs/vendors/redhat/heads/gcc-8-branch)] aarch64: Add early clobber for aarch64_store_exclusive.
@ 2020-09-17 16:57 Jakub Jelinek
0 siblings, 0 replies; only message in thread
From: Jakub Jelinek @ 2020-09-17 16:57 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:afe3fd8b7ace95b21dc35d0ca54e3bc392dbdbe9
commit afe3fd8b7ace95b21dc35d0ca54e3bc392dbdbe9
Author: Andre Vieira <andre.simoesdiasvieira@arm.com>
Date: Thu Apr 16 10:16:07 2020 +0100
aarch64: Add early clobber for aarch64_store_exclusive.
gcc/ChangeLog:
2020-04-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
Backport from mainline.
2018-07-16 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
* config/aarch64/atomics.md (aarch64_store_execlusive<mode>): Add
early clobber.
Diff:
---
gcc/ChangeLog | 9 +++++++++
gcc/config/aarch64/atomics.md | 2 +-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4b8c8d3be97..4cd2e2e2836 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2020-04-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
+
+ Backport from mainline.
+ 2018-07-16 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
+
+ * config/aarch64/atomics.md (aarch64_store_execlusive<mode>): Add
+ early clobber.
+
2020-04-21 Martin Jambor <mjambor@suse.cz>
Backport from master
@@ -40,6 +48,7 @@
* config/i386/i386.c (rest_of_insert_endbranch): Insert ENDBR at
function entry if function will be called indirectly.
+
2020-04-15 Uroš Bizjak <ubizjak@gmail.com>
PR target/94603
diff --git a/gcc/config/aarch64/atomics.md b/gcc/config/aarch64/atomics.md
index 686e39ff2ee..fba5ec6db58 100644
--- a/gcc/config/aarch64/atomics.md
+++ b/gcc/config/aarch64/atomics.md
@@ -530,7 +530,7 @@
)
(define_insn "aarch64_store_exclusive<mode>"
- [(set (match_operand:SI 0 "register_operand" "=r")
+ [(set (match_operand:SI 0 "register_operand" "=&r")
(unspec_volatile:SI [(const_int 0)] UNSPECV_SX))
(set (match_operand:ALLI 1 "aarch64_sync_memory_operand" "=Q")
(unspec_volatile:ALLI
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