summaryrefslogtreecommitdiff
path: root/src/mesa/drivers/dri/i965/brw_shader.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_shader.cpp')
-rw-r--r--src/mesa/drivers/dri/i965/brw_shader.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp
index 9ab18cc7d6..2da5ed5c6c 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.cpp
+++ b/src/mesa/drivers/dri/i965/brw_shader.cpp
@@ -150,13 +150,15 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg)
*/
brw_lower_packing_builtins(brw, (gl_shader_type) stage, shader->ir);
do_mat_op_to_vec(shader->ir);
+ const int lrp_to_arith = (intel->gen < 6 || stage != MESA_SHADER_FRAGMENT)
+ ? LRP_TO_ARITH : 0;
lower_instructions(shader->ir,
MOD_TO_FRACT |
DIV_TO_MUL_RCP |
SUB_TO_ADD_NEG |
EXP_TO_EXP2 |
LOG_TO_LOG2 |
- LRP_TO_ARITH);
+ lrp_to_arith);
/* Pre-gen6 HW can only nest if-statements 16 deep. Beyond this,
* if-statements need to be flattened.