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-rw-r--r--src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp b/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp
index 6a527544553..ccedee3ba58 100644
--- a/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp
+++ b/src/mesa/drivers/dri/i965/brw_schedule_instructions.cpp
@@ -579,7 +579,10 @@ fs_instruction_scheduler::calculate_deps()
(inst->src[i].fixed_hw_reg.file ==
BRW_GENERAL_REGISTER_FILE)) {
if (post_reg_alloc) {
- for (int r = 0; r < reg_width; r++)
+ int size = reg_width;
+ if (inst->src[i].fixed_hw_reg.vstride == BRW_VERTICAL_STRIDE_0)
+ size = 1;
+ for (int r = 0; r < size; r++)
add_dep(last_grf_write[inst->src[i].fixed_hw_reg.nr + r], n);
} else {
add_dep(last_fixed_grf_write, n);
@@ -684,7 +687,10 @@ fs_instruction_scheduler::calculate_deps()
(inst->src[i].fixed_hw_reg.file ==
BRW_GENERAL_REGISTER_FILE)) {
if (post_reg_alloc) {
- for (int r = 0; r < reg_width; r++)
+ int size = reg_width;
+ if (inst->src[i].fixed_hw_reg.vstride == BRW_VERTICAL_STRIDE_0)
+ size = 1;
+ for (int r = 0; r < size; r++)
add_dep(n, last_grf_write[inst->src[i].fixed_hw_reg.nr + r]);
} else {
add_dep(n, last_fixed_grf_write);