From 2439931ecdc79ac2e9b840eb38b535a7e6e0eb56 Mon Sep 17 00:00:00 2001
From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 17 May 2016 12:15:05 +0000
Subject: [PATCH] [AArch64] PR target/70809: Delete aarch64_vmls<mode> pattern

	PR target/70809
	* config/aarch64/aarch64-simd.md (aarch64_vmls<mode>): Delete.

	* gcc.target/aarch64/pr70809_1.c: New test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236318 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/ChangeLog                                |  5 +++++
 gcc/config/aarch64/aarch64-simd.md           | 10 ----------
 gcc/testsuite/ChangeLog                      |  5 +++++
 gcc/testsuite/gcc.target/aarch64/pr70809_1.c | 18 ++++++++++++++++++
 4 files changed, 28 insertions(+), 10 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/aarch64/pr70809_1.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0d3e00f42b9..3c6030d427a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-05-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	PR target/70809
+	* config/aarch64/aarch64-simd.md (aarch64_vmls<mode>): Delete.
+
 2016-05-17  James Greenhalgh  <james.greenhalgh@arm.com>
 
 	* config/aarch64/aarch64-elf.h (ASM_OUTPUT_DEF): Delete.
diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index bd73bce6441..ded8bff0973 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -1919,16 +1919,6 @@
   }
 )
 
-(define_insn "aarch64_vmls<mode>"
-  [(set (match_operand:VDQF 0 "register_operand" "=w")
-       (minus:VDQF (match_operand:VDQF 1 "register_operand" "0")
-		   (mult:VDQF (match_operand:VDQF 2 "register_operand" "w")
-			      (match_operand:VDQF 3 "register_operand" "w"))))]
-  "TARGET_SIMD"
- "fmls\\t%0.<Vtype>, %2.<Vtype>, %3.<Vtype>"
-  [(set_attr "type" "neon_fp_mla_<Vetype>_scalar<q>")]
-)
-
 ;; FP Max/Min
 ;; Max/Min are introduced by idiom recognition by GCC's mid-end.  An
 ;; expression like:
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 1f8a5a60a78..9f75baa32a5 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,10 @@
 2016-05-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
+	PR target/70809
+	* gcc.target/aarch64/pr70809_1.c: New test.
+
+2016-05-17  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
 	* gcc.target/aarch64/cpu-diagnostics-1.c: Skip if -mcpu is overriden.
 	* gcc.target/aarch64/cpu-diagnostics-2.c: Likewise.
 	* gcc.target/aarch64/cpu-diagnostics-3.c: Likewise.
diff --git a/gcc/testsuite/gcc.target/aarch64/pr70809_1.c b/gcc/testsuite/gcc.target/aarch64/pr70809_1.c
new file mode 100644
index 00000000000..df88c71c42a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/pr70809_1.c
@@ -0,0 +1,18 @@
+/* PR target/70809.  */
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-vectorize -ffp-contract=off -mtune=xgene1" } */
+
+/* Check that vector FMLS is not generated when contraction is disabled.  */
+
+void
+foo (float *__restrict__ __attribute__ ((aligned (16))) a,
+     float *__restrict__ __attribute__ ((aligned (16))) x,
+     float *__restrict__ __attribute__ ((aligned (16))) y,
+     float *__restrict__ __attribute__ ((aligned (16))) z)
+{
+  unsigned i = 0;
+  for (i = 0; i < 256; i++)
+    a[i] = x[i] - (y[i] * z[i]);
+}
+
+/* { dg-final { scan-assembler-not "fmls\tv.*" } } */
-- 
2.11.4.GIT