nir: Take if uses into account in ssa_def_components_read

Fixes: d800b7daa5440 "nir: Add a helper for figuring out what..."
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>

diff --git a/src/compiler/nir/nir.c b/src/compiler/nir/nir.c
index bc7f05b3e86bcd60a02361089e0599028ca15db8..a849664134fca92b74817e4d0d8817a8307009e2 100644 (file)
--- a/src/compiler/nir/nir.c
+++ b/src/compiler/nir/nir.c
@@ -1446,6 +1446,9 @@ nir_ssa_def_components_read(const nir_ssa_def *def)
       }
    }
 
+   if (!list_empty(&def->if_uses))
+      read_mask |= 1;
+
    return read_mask;
 }