intel/ir: Allow arbitrary scratch flag registers for SHADER_OPCODE_FIND_LIVE_CHANNEL.

[mesa.git] / src / intel / compiler / brw_fs.cpp

diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp
index 16b6a06c69d89228755d2d5f9126b0412897d2f7..c255a3b23b526fac95672aa51685b257b984a90a 100644 (file)
--- a/src/intel/compiler/brw_fs.cpp
+++ b/src/intel/compiler/brw_fs.cpp
@@ -931,7 +931,8 @@ fs_inst::flags_written() const
    if ((conditional_mod && (opcode != BRW_OPCODE_SEL &&
                             opcode != BRW_OPCODE_IF &&
                             opcode != BRW_OPCODE_WHILE)) ||
-       opcode == FS_OPCODE_MOV_DISPATCH_TO_FLAGS) {
+       opcode == FS_OPCODE_MOV_DISPATCH_TO_FLAGS ||
+       opcode == SHADER_OPCODE_FIND_LIVE_CHANNEL) {
       return flag_mask(this);
    } else {
       return flag_mask(dst, size_written);