From f9bc168bd3fb92b60988b0b35dc356018c8a3eb9 Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Date: Thu, 31 Dec 2020 16:16:07 -0500
Subject: [PATCH] pan/bi: Add bi_swz_16 helper

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10065>
---
 src/panfrost/bifrost/compiler.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/panfrost/bifrost/compiler.h b/src/panfrost/bifrost/compiler.h
index d2b1d414ccd..7d01e3db015 100644
--- a/src/panfrost/bifrost/compiler.h
+++ b/src/panfrost/bifrost/compiler.h
@@ -168,13 +168,19 @@ bi_word(bi_index idx, unsigned component)
 
 /* Helps construct swizzles */
 static inline bi_index
-bi_half(bi_index idx, bool upper)
+bi_swz_16(bi_index idx, bool x, bool y)
 {
         assert(idx.swizzle == BI_SWIZZLE_H01);
-        idx.swizzle = upper ? BI_SWIZZLE_H11 : BI_SWIZZLE_H00;
+        idx.swizzle = BI_SWIZZLE_H00 | (x << 1) | y;
         return idx;
 }
 
+static inline bi_index
+bi_half(bi_index idx, bool upper)
+{
+        return bi_swz_16(idx, upper, upper);
+}
+
 static inline bi_index
 bi_byte(bi_index idx, unsigned lane)
 {