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-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_emit.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c
index 82ebd5c2576..a02f70a50c7 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c
@@ -504,6 +504,9 @@ static void emit_dp3( struct brw_compile *p,
const struct brw_reg *arg0,
const struct brw_reg *arg1 )
{
+ if (!(mask & WRITEMASK_XYZW))
+ return; /* Do not emit dead code*/
+
assert((mask & WRITEMASK_XYZW) == WRITEMASK_X);
brw_MUL(p, brw_null_reg(), arg0[0], arg1[0]);
@@ -521,6 +524,9 @@ static void emit_dp4( struct brw_compile *p,
const struct brw_reg *arg0,
const struct brw_reg *arg1 )
{
+ if (!(mask & WRITEMASK_XYZW))
+ return; /* Do not emit dead code*/
+
assert((mask & WRITEMASK_XYZW) == WRITEMASK_X);
brw_MUL(p, brw_null_reg(), arg0[0], arg1[0]);
@@ -539,6 +545,9 @@ static void emit_dph( struct brw_compile *p,
const struct brw_reg *arg0,
const struct brw_reg *arg1 )
{
+ if (!(mask & WRITEMASK_XYZW))
+ return; /* Do not emit dead code*/
+
assert((mask & WRITEMASK_XYZW) == WRITEMASK_X);
brw_MUL(p, brw_null_reg(), arg0[0], arg1[0]);
@@ -582,6 +591,9 @@ static void emit_math1( struct brw_compile *p,
GLuint mask,
const struct brw_reg *arg0 )
{
+ if (!(mask & WRITEMASK_XYZW))
+ return; /* Do not emit dead code*/
+
//assert((mask & WRITEMASK_XYZW) == WRITEMASK_X ||
// function == BRW_MATH_FUNCTION_SINCOS);
@@ -606,6 +618,9 @@ static void emit_math2( struct brw_compile *p,
const struct brw_reg *arg0,
const struct brw_reg *arg1)
{
+ if (!(mask & WRITEMASK_XYZW))
+ return; /* Do not emit dead code*/
+
assert((mask & WRITEMASK_XYZW) == WRITEMASK_X);
brw_push_insn_state(p);