Just like the exec_size, we are going to need this in the vec4 backend
when we implement a simd splitting pass.
---
 src/mesa/drivers/dri/i965/brw_ir_fs.h          | 9 ---------
 src/mesa/drivers/dri/i965/brw_shader.h         | 9 +++++++++
 src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 1 +
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_ir_fs.h 
b/src/mesa/drivers/dri/i965/brw_ir_fs.h
index c569bd4..cad3712 100644
--- a/src/mesa/drivers/dri/i965/brw_ir_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_ir_fs.h
@@ -367,15 +367,6 @@ public:
 
    uint8_t sources; /**< Number of fs_reg sources. */
 
-   /**
-    * Channel group from the hardware execution and predication mask that
-    * should be applied to the instruction.  The subset of channel enable
-    * signals (calculated from the EU control flow and predication state)
-    * given by [group, group + exec_size) will be used to mask GRF writes and
-    * any other side effects of the instruction.
-    */
-   uint8_t group;
-
    bool eot:1;
    bool pi_noperspective:1;   /**< Pixel interpolator noperspective flag */
 };
diff --git a/src/mesa/drivers/dri/i965/brw_shader.h 
b/src/mesa/drivers/dri/i965/brw_shader.h
index aca26dc..0c8f296 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.h
+++ b/src/mesa/drivers/dri/i965/brw_shader.h
@@ -140,6 +140,15 @@ struct backend_instruction {
     */
    uint8_t exec_size;
 
+   /**
+    * Channel group from the hardware execution and predication mask that
+    * should be applied to the instruction.  The subset of channel enable
+    * signals (calculated from the EU control flow and predication state)
+    * given by [group, group + exec_size) will be used to mask GRF writes and
+    * any other side effects of the instruction.
+    */
+   uint8_t group;
+
    uint32_t offset; /**< spill/unspill offset or texture offset bitfield */
    uint8_t mlen; /**< SEND message length */
    int8_t base_mrf; /**< First MRF in the SEND message, if mlen is nonzero. */
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp 
b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 4e7515c..75c60a0 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -55,6 +55,7 @@ vec4_instruction::vec4_instruction(enum opcode opcode, const 
dst_reg &dst,
    this->base_mrf = 0;
    this->offset = 0;
    this->exec_size = 8;
+   this->group = 0;
    this->size_written = (dst.file == BAD_FILE ?
                          0 : this->exec_size * type_sz(dst.type));
    this->annotation = NULL;
-- 
2.7.4

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