Fix bug in eliminate_contiguous for operators that have module inputs (#2071)

src/eliminate_contiguous.cpp

@@ -80,7 +80,7 @@ static bool try_compute_shape(instruction_ref ins,
                 return (arg == ins) ? new_shape : arg->get_shape();
             });
 
-            if(not try_compute_shape(output, input_shapes, mods))
+            if(not try_compute_shape(output, input_shapes, output->module_inputs()))
             {
                 return false;
             }

test/eliminate_contiguous_test.cpp

@@ -196,15 +196,47 @@ TEST_CASE(contiguous_pointwise)
             migraphx::make_op("broadcast", {{"axis", 1}, {"out_lens", {2, 3, 8, 8}}}), y);
         auto yc  = mm->add_instruction(migraphx::make_op("contiguous"), yb);
         auto add = add_pointwise(p, "main:pointwise0", {x, yc}, single_pointwise("add"));
-        mm->add_instruction(pass_op{}, add);
+        auto cadd = mm->add_instruction(migraphx::make_op("contiguous"), add);
+        mm->add_instruction(pass_op{}, cadd);
     }
     auto count = std::distance(mm->begin(), mm->end());
     run_pass(*mm);
-    EXPECT(std::distance(mm->begin(), mm->end()) == (count - 1));
+    EXPECT(std::distance(mm->begin(), mm->end()) == (count - 2));
     EXPECT(std::none_of(
         mm->begin(), mm->end(), [](auto&& ins) { return ins.name() == "contiguous"; }));
 }
 
+TEST_CASE(contiguous_nhwc_pointwise)
+{
+    auto s =
+        migraphx::shape::from_permutation(migraphx::shape::float_type, {2, 3, 8, 8}, {0, 2, 3, 1});
+    migraphx::program p1;
+    {
+        auto* mm = p1.get_main_module();
+        auto x   = mm->add_parameter("x", s);
+        auto y   = mm->add_parameter("y", migraphx::shape{migraphx::shape::float_type, {3}});
+        auto yb  = mm->add_instruction(
+            migraphx::make_op("broadcast", {{"axis", 1}, {"out_lens", {2, 3, 8, 8}}}), y);
+        auto yc   = mm->add_instruction(migraphx::make_op("contiguous"), yb);
+        auto add  = add_pointwise(p1, "main:pointwise0", {x, yc}, single_pointwise("add"));
+        auto cadd = mm->add_instruction(migraphx::make_op("contiguous"), add);
+        mm->add_instruction(pass_op{}, cadd);
+    }
+    run_pass(*p1.get_main_module());
+    migraphx::program p2;
+    {
+        auto* mm = p2.get_main_module();
+        auto x   = mm->add_parameter("x", s);
+        auto y   = mm->add_parameter("y", migraphx::shape{migraphx::shape::float_type, {3}});
+        auto yb  = mm->add_instruction(
+            migraphx::make_op("broadcast", {{"axis", 1}, {"out_lens", {2, 3, 8, 8}}}), y);
+        auto add  = add_pointwise(p2, "main:pointwise0", {x, yb}, single_pointwise("add"));
+        auto cadd = mm->add_instruction(migraphx::make_op("contiguous"), add);
+        mm->add_instruction(pass_op{}, cadd);
+    }
+    EXPECT(p1 == p2);
+}
+
 TEST_CASE(slice_contiguous)
 {
     migraphx::module m;