---
src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
b/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
index 13512cc..f3f6ef4 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_reg_allocate.cpp
@@ -294,19 +294,21 @@ fs_visitor::setup_payload_interference(struct ra_graph *g,
break;
case FS_OPCODE_LINTERP:
- /* On gen6+ in SIMD16, there are 4 adjacent registers (so 2 nodes)
- * used by PLN's sourcing of the deltas, while we list only the first
- * two in the arguments (1 node). Pre-gen6, the deltas are computed
- * in normal VGRFs.
+ /* On gen6+ in SIMD16, there are 4 adjacent registers used by
+ * PLN's sourcing of the deltas, while we list only the first one
+ * in the arguments. Pre-gen6, the deltas are computed in normal
+ * VGRFs.
*/
if (brw->gen >= 6) {
int delta_x_arg = 0;
if (inst->src[delta_x_arg].file == HW_REG &&
inst->src[delta_x_arg].fixed_hw_reg.file ==
BRW_GENERAL_REGISTER_FILE) {
- int sechalf_node = inst->src[delta_x_arg].fixed_hw_reg.nr + 1;
- assert(sechalf_node < payload_node_count);
- payload_last_use_ip[sechalf_node] = use_ip;
+ for (int i = 1; i < 4; ++i) {
+ int node = inst->src[delta_x_arg].fixed_hw_reg.nr + i;
+ assert(node < payload_node_count);
+ payload_last_use_ip[node] = use_ip;
+ }
}
}
break;
--
2.1.0
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