We can only do the optimization if the source *is* SSA.
Cc: "13.0 17.0" <mesa-sta...@lists.freedesktop.org>
---
src/mesa/drivers/dri/i965/brw_fs_nir.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index 991c20f..94f2751 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -1219,7 +1219,7 @@ fs_visitor::nir_emit_alu(const fs_builder &bld,
nir_alu_instr *instr)
* the unpack operation.
*/
for (int i = 0; i < 2; i++) {
- if (instr->src[i].src.is_ssa)
+ if (!instr->src[i].src.is_ssa)
continue;
const nir_instr *parent_instr = instr->src[i].src.ssa->parent_instr;
--
2.5.0.400.gff86faf
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