Mesa (master): i965/fs: Add a helper for detecting texturing opcodes.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: 3f2fe31eee1667ef9cad99aaad69e52a09c9effa
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3f2fe31eee1667ef9cad99aaad69e52a09c9effa

Author: Eric Anholt <eric at anholt.net>
Date:   Tue Jan 18 21:10:03 2011 -0800

i965/fs: Add a helper for detecting texturing opcodes.

---

 src/mesa/drivers/dri/i965/brw_fs.cpp |   13 +++++--------
 src/mesa/drivers/dri/i965/brw_fs.h   |    7 +++++++
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 056bb99..5b595a3 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2647,10 +2647,7 @@ fs_visitor::split_virtual_grfs()
       fs_inst *inst = (fs_inst *)iter.get();
 
       /* Texturing produces 4 contiguous registers, so no splitting. */
-      if ((inst->opcode == FS_OPCODE_TEX ||
-	   inst->opcode == FS_OPCODE_TXB ||
-	   inst->opcode == FS_OPCODE_TXL) &&
-	  inst->dst.file == GRF) {
+      if (inst->is_tex()) {
 	 split_grf[inst->dst.reg] = false;
       }
    }
@@ -2938,7 +2935,7 @@ fs_visitor::propagate_constants()
 	 if (scan_inst->dst.file == GRF &&
 	     scan_inst->dst.reg == inst->dst.reg &&
 	     (scan_inst->dst.reg_offset == inst->dst.reg_offset ||
-	      scan_inst->opcode == FS_OPCODE_TEX)) {
+	      scan_inst->is_tex())) {
 	    break;
 	 }
       }
@@ -3033,13 +3030,13 @@ fs_visitor::register_coalesce()
 	 if (scan_inst->dst.file == GRF) {
 	    if (scan_inst->dst.reg == inst->dst.reg &&
 		(scan_inst->dst.reg_offset == inst->dst.reg_offset ||
-		 scan_inst->opcode == FS_OPCODE_TEX)) {
+		 scan_inst->is_tex())) {
 	       interfered = true;
 	       break;
 	    }
 	    if (scan_inst->dst.reg == inst->src[0].reg &&
 		(scan_inst->dst.reg_offset == inst->src[0].reg_offset ||
-		 scan_inst->opcode == FS_OPCODE_TEX)) {
+		 scan_inst->is_tex())) {
 	       interfered = true;
 	       break;
 	    }
@@ -3120,7 +3117,7 @@ fs_visitor::compute_to_mrf()
 	     * into a compute-to-MRF.
 	     */
 
-	    if (scan_inst->opcode == FS_OPCODE_TEX) {
+	    if (scan_inst->is_tex()) {
 	       /* texturing writes several continuous regs, so we can't
 		* compute-to-mrf that.
 		*/
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index 703e017..65c8a1e 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -306,6 +306,13 @@ public:
 	      offset == inst->offset);
    }
 
+   bool is_tex()
+   {
+      return (opcode == FS_OPCODE_TEX ||
+	      opcode == FS_OPCODE_TXB ||
+	      opcode == FS_OPCODE_TXL);
+   }
+
    int opcode; /* BRW_OPCODE_* or FS_OPCODE_* */
    fs_reg dst;
    fs_reg src[3];