Mesa (master): i965: don't drop const initializers in vector splitting

[Rob Clark]

Module: Mesa
Branch: master
Commit: 01ccb0d91e6f976716eb79cdb0fb11ad4d0b4fcf
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=01ccb0d91e6f976716eb79cdb0fb11ad4d0b4fcf

Author: Rob Clark <robclark at freedesktop.org>
Date:   Fri Jun 24 20:03:37 2016 -0400

i965: don't drop const initializers in vector splitting

Signed-off-by: Rob Clark <robclark at freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_fs_vector_splitting.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_vector_splitting.cpp b/src/mesa/drivers/dri/i965/brw_fs_vector_splitting.cpp
index 5fe24de..5c05586 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_vector_splitting.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_vector_splitting.cpp
@@ -372,6 +372,18 @@ brw_do_vector_splitting(exec_list *instructions)
 
          ralloc_free(name);
 
+         if (entry->var->constant_initializer) {
+            ir_constant_data data = {0};
+            assert(entry->var->data.has_initializer);
+            if (entry->var->type->is_double()) {
+               data.d[0] = entry->var->constant_initializer->value.d[i];
+            } else {
+               data.u[0] = entry->var->constant_initializer->value.u[i];
+            }
+            entry->components[i]->data.has_initializer = true;
+            entry->components[i]->constant_initializer = new(entry->components[i]) ir_constant(type, &data);
+         }
+
 	 entry->var->insert_before(entry->components[i]);
       }