From: Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
Date: Mon, 16 Jul 2018 09:03:48 +0000 (+0000)
Subject: [Patch AArch64] Add early clobber for aarch64_store_exclusive.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1d896f48fa2f796ba13773ab735ef40fa3afb257;p=gcc.git

[Patch AArch64] Add early clobber for aarch64_store_exclusive.

From-SVN: r262686
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5ed47c13633..3e394ae407c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2018-07-16  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
+
+	* config/aarch64/atomics.md (aarch64_store_execlusive<mode>): Add
+	early clobber.
+
 2018-07-16  Eric Botcazou  <ebotcazou@adacore.com>
 
 	PR tree-optimization/86514
diff --git a/gcc/config/aarch64/atomics.md b/gcc/config/aarch64/atomics.md
index 68dc65c6d00..cd8c44e20ab 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