Handle literals in add fusions

src/simplify_algebra.cpp

@@ -89,7 +89,9 @@ struct find_add_lit_broadcast
 
 void simplify_algebra::apply(program& p) const
 {
-    match::find_matches(p, find_add_lit_broadcast{}, find_mul_conv{});
+    // Run simplifications twice
+    for(int i=0;i<2;i++)
+        match::find_matches(p, find_add_lit_broadcast{}, find_mul_conv{});
 }
 
 } // namespace MIGRAPHX_INLINE_NS

src/targets/gpu/fuse_ops.cpp

@@ -225,7 +225,7 @@ struct find_add_relu
         return match::name("gpu::relu")(
             match::arg(0)(match::any_of(match::name("gpu::add"),
                                         match::name("hip::triadd"),
-                                        match::any_of[match::inputs()](match::standard_shape()))
+                                        match::any_of(match::name("@literal"), match::any_of[match::inputs()](match::standard_shape())))
                               .bind("add")));
     }
 
@@ -252,7 +252,7 @@ struct find_triadd
     {
         return match::name("gpu::add")(match::either_arg(0, 1)(
             match::name("gpu::add").bind("add"),
-            match::any(match::any_of[match::inputs()](match::standard_shape())).bind("input")));
+            match::any(match::any_of(match::name("@literal"), match::any_of[match::inputs()](match::standard_shape()))).bind("input")));
     }
 
     void apply(program& p, match::matcher_result r) const