glsl/loops: Get rid of lower_bounded_loops and ir_loop::normative_bound.

Now that loop_controls no longer creates normatively bound loops,
there is no need for ir_loop::normative_bound or the
lower_bounded_loops pass.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

1 files changed, 1 insertions, 8 deletions

diff --git a/src/glsl/loop_controls.cpp b/src/glsl/loop_controls.cpp
index 385c203..3db06ad 100644
--- a/src/glsl/loop_controls.cpp
+++ b/src/glsl/loop_controls.cpp
@@ -193,13 +193,6 @@ loop_control_visitor::visit_leave(ir_loop *ir)
          this->progress = true;
          return visit_continue;
       }
-
-      /* If the limiting terminator has a lower iteration count than the
-       * normative loop bound (if any), then the loop doesn't need a normative
-       * bound anymore.
-       */
-      if (ir->normative_bound >= 0 && iterations < ir->normative_bound)
-         ir->normative_bound = -1;
    }
 
    /* Remove the conditional break statements associated with all terminators
@@ -215,7 +208,7 @@ loop_control_visitor::visit_leave(ir_loop *ir)
       if (t->iterations < 0)
          continue;
 
-      if (ir->normative_bound >= 0 || t != ls->limiting_terminator) {
+      if (t != ls->limiting_terminator) {
          t->ir->remove();
 
          assert(ls->num_loop_jumps > 0);