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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_combine_constants.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_combine_constants.cpp b/src/mesa/drivers/dri/i965/brw_fs_combine_constants.cpp
index 6acd3fef95c..7ddb2537a33 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_combine_constants.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_combine_constants.cpp
@@ -270,6 +270,7 @@ fs_visitor::opt_combine_constants()
struct imm *imm = &table.imm[i];
fs_inst *mov = MOV(reg, fs_reg(imm->val));
+ mov->force_writemask_all = true;
if (imm->inst) {
imm->inst->insert_before(imm->block, mov);
} else {