The implementations of the ARB_shader_group_vote intrinsics will
explicitly write the flag as the destination register.
---
src/intel/compiler/brw_fs.cpp | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp
index 43b6e34204..97908a4563 100644
--- a/src/intel/compiler/brw_fs.cpp
+++ b/src/intel/compiler/brw_fs.cpp
@@ -890,9 +890,17 @@ fs_inst::flags_written() const
opcode != BRW_OPCODE_WHILE)) ||
opcode == FS_OPCODE_MOV_DISPATCH_TO_FLAGS) {
return flag_mask(this);
- } else {
- return 0;
+ } else if (dst.file == ARF) {
+ if (dst.nr == BRW_ARF_FLAG + 0 && dst.subnr == 0)
+ return 0b0001;
+ if (dst.nr == BRW_ARF_FLAG + 0 && dst.subnr == 1)
+ return 0b0010;
+ if (dst.nr == BRW_ARF_FLAG + 1 && dst.subnr == 0)
+ return 0b0100;
+ if (dst.nr == BRW_ARF_FLAG + 1 && dst.subnr == 1)
+ return 0b1000;
}
+ return 0;
}
/**
--
2.13.0
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