nir/opt_algebraic: Add an option to lower uclz.

Signed-off-by: Georg Lehmann <dadschoorse@gmail.com> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Rhys Perry <pendingchaos02@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18951>
2022-10-04 15:38:58 +02:00
parent 049b60cf4b
commit 7505be3497
2 changed files with 7 additions and 0 deletions
@@ -3507,6 +3507,11 @@ typedef struct nir_shader_compiler_options {
    */
   bool lower_mul_32x16;

+   /**
+    * Set if uclz should be lowered to find_msb_rev.
+    */
+   bool lower_uclz;
+
   /**
    * Should IO be re-vectorized?  Some scalar ISAs still operate on vec4's
    * for IO purposes and would prefer loads/stores be vectorized.