intel: Use SATURATE

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5100>
diff --git a/src/intel/compiler/brw_shader.cpp b/src/intel/compiler/brw_shader.cpp
index 470d772..e78f2cb 100644
--- a/src/intel/compiler/brw_shader.cpp
+++ b/src/intel/compiler/brw_shader.cpp
@@ -570,10 +570,10 @@
       /* Nothing to do. */
       return false;
    case BRW_REGISTER_TYPE_F:
-      sat_imm.f = CLAMP(imm.f, 0.0f, 1.0f);
+      sat_imm.f = SATURATE(imm.f);
       break;
    case BRW_REGISTER_TYPE_DF:
-      sat_imm.df = CLAMP(imm.df, 0.0, 1.0);
+      sat_imm.df = SATURATE(imm.df);
       break;
    case BRW_REGISTER_TYPE_UB:
    case BRW_REGISTER_TYPE_B: