i965/vec4: split VEC4_OPCODE_FROM_DOUBLE into one opcode per destination's type

[mesa.git] / src / compiler / nir / nir_lower_vars_to_ssa.c

diff --git a/src/compiler/nir/nir_lower_vars_to_ssa.c b/src/compiler/nir/nir_lower_vars_to_ssa.c
index 4ea5ea5cd514e2a3bb06396d36213b248b0a53a7..e5a12eb9713c115c33d62f91d59c431faa93ec5e 100644 (file)
--- a/src/compiler/nir/nir_lower_vars_to_ssa.c
+++ b/src/compiler/nir/nir_lower_vars_to_ssa.c
@@ -475,7 +475,7 @@ lower_copies_to_load_store(struct deref_node *node,
  *
  * This algorithm is very similar to the one outlined in "Efficiently
  * Computing Static Single Assignment Form and the Control Dependence
- * Graph" by Cytron et. al.  The primary difference is that we only put one
+ * Graph" by Cytron et al.  The primary difference is that we only put one
  * SSA def on the stack per block.
  */
 static bool
@@ -737,11 +737,15 @@ nir_lower_vars_to_ssa_impl(nir_function_impl *impl)
    return progress;
 }
 
-void
+bool
 nir_lower_vars_to_ssa(nir_shader *shader)
 {
+   bool progress = false;
+
    nir_foreach_function(function, shader) {
       if (function->impl)
-         nir_lower_vars_to_ssa_impl(function->impl);
+         progress |= nir_lower_vars_to_ssa_impl(function->impl);
    }
+
+   return progress;
 }