[AArch64] Avoid GET_MODE_NUNITS in v8.4 support

This patch replaces GET_MODE_NUNITS in some of the v8.4 support
with equivalent values, in preparation for the switch to
NUM_POLY_INT_COEFFS==2.

2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
	* config/aarch64/aarch64-simd.md
	(aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
	(aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
	(aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
	(aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
	(aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
	(aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
	(aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
	(aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
	(aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
	(aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.

From-SVN: r256530

2 files changed, 28 insertions, 32 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7ff6903..8654289 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,17 @@
+2018-01-11  Richard Sandiford  <richard.sandiford@linaro.org>
+
+	* config/aarch64/aarch64-simd.md
+	(aarch64_fml<f16mac1>l<f16quad>_low<mode>): Avoid GET_MODE_NUNITS.
+	(aarch64_fml<f16mac1>l<f16quad>_high<mode>): Likewise.
+	(aarch64_fml<f16mac1>l_lane_lowv2sf): Likewise.
+	(aarch64_fml<f16mac1>l_lane_highv2sf): Likewise.
+	(aarch64_fml<f16mac1>lq_laneq_lowv4sf): Likewise.
+	(aarch64_fml<f16mac1>lq_laneq_highv4sf): Likewise.
+	(aarch64_fml<f16mac1>l_laneq_lowv2sf): Likewise.
+	(aarch64_fml<f16mac1>l_laneq_highv2sf): Likewise.
+	(aarch64_fml<f16mac1>lq_lane_lowv4sf): Likewise.
+	(aarch64_fml<f16mac1>lq_lane_highv4sf): Likewise.
+
 2018-01-11  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
 
 	PR target/83514
diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index 5b3db91..792fa1c 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -6060,9 +6060,10 @@
 	 VFMLA16_LOW))]
   "TARGET_F16FML"
 {
-  int nunits = GET_MODE_NUNITS (<VFMLA_W>mode);
-  rtx p1 = aarch64_simd_vect_par_cnst_half (<VFMLA_W>mode, nunits, false);
-  rtx p2 = aarch64_simd_vect_par_cnst_half (<VFMLA_W>mode, nunits, false);
+  rtx p1 = aarch64_simd_vect_par_cnst_half (<VFMLA_W>mode,
+					    <nunits> * 2, false);
+  rtx p2 = aarch64_simd_vect_par_cnst_half (<VFMLA_W>mode,
+					    <nunits> * 2, false);
 
   emit_insn (gen_aarch64_simd_fml<f16mac1>l<f16quad>_low<mode> (operands[0],
 								operands[1],
@@ -6082,9 +6083,8 @@
 	 VFMLA16_HIGH))]
   "TARGET_F16FML"
 {
-  int nunits = GET_MODE_NUNITS (<VFMLA_W>mode);
-  rtx p1 = aarch64_simd_vect_par_cnst_half (<VFMLA_W>mode, nunits, true);
-  rtx p2 = aarch64_simd_vect_par_cnst_half (<VFMLA_W>mode, nunits, true);
+  rtx p1 = aarch64_simd_vect_par_cnst_half (<VFMLA_W>mode, <nunits> * 2, true);
+  rtx p2 = aarch64_simd_vect_par_cnst_half (<VFMLA_W>mode, <nunits> * 2, true);
 
   emit_insn (gen_aarch64_simd_fml<f16mac1>l<f16quad>_high<mode> (operands[0],
 								 operands[1],
@@ -6173,9 +6173,7 @@
 	 VFMLA16_LOW))]
   "TARGET_F16FML"
 {
-    rtx p1 = aarch64_simd_vect_par_cnst_half (V4HFmode,
-					      GET_MODE_NUNITS (V4HFmode),
-					      false);
+    rtx p1 = aarch64_simd_vect_par_cnst_half (V4HFmode, 4, false);
     rtx lane = aarch64_endian_lane_rtx (V4HFmode, INTVAL (operands[4]));
 
     emit_insn (gen_aarch64_simd_fml<f16mac1>l_lane_lowv2sf (operands[0],
@@ -6196,9 +6194,7 @@
 	 VFMLA16_HIGH))]
   "TARGET_F16FML"
 {
-    rtx p1 = aarch64_simd_vect_par_cnst_half (V4HFmode,
-					      GET_MODE_NUNITS (V4HFmode),
-					      true);
+    rtx p1 = aarch64_simd_vect_par_cnst_half (V4HFmode, 4, true);
     rtx lane = aarch64_endian_lane_rtx (V4HFmode, INTVAL (operands[4]));
 
     emit_insn (gen_aarch64_simd_fml<f16mac1>l_lane_highv2sf (operands[0],
@@ -6292,9 +6288,7 @@
 	 VFMLA16_LOW))]
   "TARGET_F16FML"
 {
-    rtx p1 = aarch64_simd_vect_par_cnst_half (V8HFmode,
-					      GET_MODE_NUNITS (V8HFmode),
-					      false);
+    rtx p1 = aarch64_simd_vect_par_cnst_half (V8HFmode, 8, false);
     rtx lane = aarch64_endian_lane_rtx (V8HFmode, INTVAL (operands[4]));
 
     emit_insn (gen_aarch64_simd_fml<f16mac1>lq_laneq_lowv4sf (operands[0],
@@ -6314,10 +6308,7 @@
 	 VFMLA16_HIGH))]
   "TARGET_F16FML"
 {
-    rtx p1 = aarch64_simd_vect_par_cnst_half (V8HFmode,
-					      GET_MODE_NUNITS (V8HFmode),
-					      true);
-
+    rtx p1 = aarch64_simd_vect_par_cnst_half (V8HFmode, 8, true);
     rtx lane = aarch64_endian_lane_rtx (V8HFmode, INTVAL (operands[4]));
 
     emit_insn (gen_aarch64_simd_fml<f16mac1>lq_laneq_highv4sf (operands[0],
@@ -6411,9 +6402,7 @@
 	 VFMLA16_LOW))]
   "TARGET_F16FML"
 {
-    rtx p1 = aarch64_simd_vect_par_cnst_half (V4HFmode,
-					      GET_MODE_NUNITS (V4HFmode),
-					      false);
+    rtx p1 = aarch64_simd_vect_par_cnst_half (V4HFmode, 4, false);
     rtx lane = aarch64_endian_lane_rtx (V8HFmode, INTVAL (operands[4]));
 
     emit_insn (gen_aarch64_simd_fml<f16mac1>l_laneq_lowv2sf (operands[0],
@@ -6434,9 +6423,7 @@
 	 VFMLA16_HIGH))]
   "TARGET_F16FML"
 {
-    rtx p1 = aarch64_simd_vect_par_cnst_half (V4HFmode,
-					      GET_MODE_NUNITS(V4HFmode),
-					      true);
+    rtx p1 = aarch64_simd_vect_par_cnst_half (V4HFmode, 4, true);
     rtx lane = aarch64_endian_lane_rtx (V8HFmode, INTVAL (operands[4]));
 
     emit_insn (gen_aarch64_simd_fml<f16mac1>l_laneq_highv2sf (operands[0],
@@ -6531,10 +6518,7 @@
 	 VFMLA16_LOW))]
   "TARGET_F16FML"
 {
-    rtx p1 = aarch64_simd_vect_par_cnst_half (V8HFmode,
-					      GET_MODE_NUNITS (V8HFmode),
-					      false);
-
+    rtx p1 = aarch64_simd_vect_par_cnst_half (V8HFmode, 8, false);
     rtx lane = aarch64_endian_lane_rtx (V4HFmode, INTVAL (operands[4]));
 
     emit_insn (gen_aarch64_simd_fml<f16mac1>lq_lane_lowv4sf (operands[0],
@@ -6554,9 +6538,7 @@
 	 VFMLA16_HIGH))]
   "TARGET_F16FML"
 {
-    rtx p1 = aarch64_simd_vect_par_cnst_half (V8HFmode,
-					      GET_MODE_NUNITS (V8HFmode),
-					      true);
+    rtx p1 = aarch64_simd_vect_par_cnst_half (V8HFmode, 8, true);
     rtx lane = aarch64_endian_lane_rtx (V4HFmode, INTVAL (operands[4]));
 
     emit_insn (gen_aarch64_simd_fml<f16mac1>lq_lane_highv4sf (operands[0],