[Mesa-dev] [PATCH] i965/fs: Use align1 mode on ternary instructions on Gen10+

[Matt Turner]

Align1 mode offers some nice features over align16, like access to more
data types and the ability to use a 16-bit immediate. This patch does
not start using any new features. It just emits ternary instructions in
align1 mode.
---
 src/intel/compiler/brw_fs_generator.cpp | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/intel/compiler/brw_fs_generator.cpp b/src/intel/compiler/brw_fs_generator.cpp
index 2622a91917..bdf2f916cb 100644
--- a/src/intel/compiler/brw_fs_generator.cpp
+++ b/src/intel/compiler/brw_fs_generator.cpp
@@ -1729,13 +1729,15 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
 
       case BRW_OPCODE_MAD:
          assert(devinfo->gen >= 6);
-	 brw_set_default_access_mode(p, BRW_ALIGN_16);
+         if (devinfo->gen < 10)
+            brw_set_default_access_mode(p, BRW_ALIGN_16);
          brw_MAD(p, dst, src[0], src[1], src[2]);
 	 break;
 
       case BRW_OPCODE_LRP:
          assert(devinfo->gen >= 6);
-	 brw_set_default_access_mode(p, BRW_ALIGN_16);
+         if (devinfo->gen < 10)
+            brw_set_default_access_mode(p, BRW_ALIGN_16);
          brw_LRP(p, dst, src[0], src[1], src[2]);
 	 break;
 
@@ -1833,7 +1835,8 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
 
       case BRW_OPCODE_BFE:
          assert(devinfo->gen >= 7);
-         brw_set_default_access_mode(p, BRW_ALIGN_16);
+         if (devinfo->gen < 10)
+            brw_set_default_access_mode(p, BRW_ALIGN_16);
          brw_BFE(p, dst, src[0], src[1], src[2]);
          break;
 
@@ -1843,7 +1846,8 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
          break;
       case BRW_OPCODE_BFI2:
          assert(devinfo->gen >= 7);
-         brw_set_default_access_mode(p, BRW_ALIGN_16);
+         if (devinfo->gen < 10)
+            brw_set_default_access_mode(p, BRW_ALIGN_16);
          brw_BFI2(p, dst, src[0], src[1], src[2]);
          break;
 
-- 
2.13.6