It is very likely that this optimzation is never useful and we'll probably
just end up removing it, so let's not bother adding more cases to it for
now.
---
src/intel/compiler/brw_fs.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp
index 873a1dd8196..aeabaefd6df 100644
--- a/src/intel/compiler/brw_fs.cpp
+++ b/src/intel/compiler/brw_fs.cpp
@@ -2655,6 +2655,10 @@ fs_visitor::opt_algebraic()
}
break;
case BRW_OPCODE_MAD:
+ if (inst->src[0].type != BRW_REGISTER_TYPE_F ||
+ inst->src[1].type != BRW_REGISTER_TYPE_F ||
+ inst->src[2].type != BRW_REGISTER_TYPE_F)
+ break;
if (inst->src[1].is_one()) {
inst->opcode = BRW_OPCODE_ADD;
inst->src[1] = inst->src[2];
--
2.17.1
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