From 4a5c938bbfd4586f16ff0dfde00970c2a1b0f636 Mon Sep 17 00:00:00 2001
From: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Date: Fri, 6 Mar 2020 16:21:33 +0000
Subject: [PATCH] [AArch64][SVE] Add missing movprfx attribute to some ternary
 arithmetic patterns

The two affected SVE2 patterns in this patch output a movprfx'ed instruction in their second alternative
but don't set the "movprfx" attribute, which will result in the wrong instruction length being assumed by the midend.

This patch fixes that in the same way as the other SVE patterns in the backend.

Bootstrapped and tested on aarch64-none-linux-gnu.

2020-03-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-sve2.md (@aarch64_sve_<sve_int_op><mode>:
	Specify movprfx attribute.
	(@aarch64_sve_<sve_int_op>_lane_<mode>): Likewise.
---
 gcc/ChangeLog                      | 6 ++++++
 gcc/config/aarch64/aarch64-sve2.md | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 843c49e..957c4cc 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2020-03-06  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	* config/aarch64/aarch64-sve2.md (@aarch64_sve_<sve_int_op><mode>:
+	Specify movprfx attribute.
+	(@aarch64_sve_<sve_int_op>_lane_<mode>): Likewise.
+
 2020-03-06  David Edelsohn  <dje.gcc@gmail.com>
 
 	PR target/94065
diff --git a/gcc/config/aarch64/aarch64-sve2.md b/gcc/config/aarch64/aarch64-sve2.md
index f82e60e..e18b9fe 100644
--- a/gcc/config/aarch64/aarch64-sve2.md
+++ b/gcc/config/aarch64/aarch64-sve2.md
@@ -690,6 +690,7 @@
   "@
    <sve_int_op>\t%0.<Vetype>, %2.<Vetype>, %3.<Vetype>
    movprfx\t%0, %1\;<sve_int_op>\t%0.<Vetype>, %2.<Vetype>, %3.<Vetype>"
+  [(set_attr "movprfx" "*,yes")]
 )
 
 (define_insn "@aarch64_sve_<sve_int_op>_lane_<mode>"
@@ -706,6 +707,7 @@
   "@
    <sve_int_op>\t%0.<Vetype>, %2.<Vetype>, %3.<Vetype>[%4]
    movprfx\t%0, %1\;<sve_int_op>\t%0.<Vetype>, %2.<Vetype>, %3.<Vetype>[%4]"
+  [(set_attr "movprfx" "*,yes")]
 )
 
 ;; -------------------------------------------------------------------------
-- 
2.7.4