diff --git a/src/gallium/drivers/iris/iris_program.c b/src/gallium/drivers/iris/iris_program.c
index 3458f0a40d4..743d92843f7 100644
--- a/src/gallium/drivers/iris/iris_program.c
+++ b/src/gallium/drivers/iris/iris_program.c
@@ -558,7 +558,6 @@ iris_to_brw_fs_key(const struct iris_screen *screen,
       .alpha_to_coverage = key->alpha_to_coverage ? INTEL_ALWAYS : INTEL_NEVER,
       .persample_interp = key->persample_interp ? INTEL_ALWAYS : INTEL_NEVER,
       .multisample_fbo = key->multisample_fbo ? INTEL_ALWAYS : INTEL_NEVER,
-      .force_dual_color_blend = key->force_dual_color_blend,
       .ignore_sample_mask_out = !key->multisample_fbo,
    };
 }
@@ -638,7 +637,6 @@ iris_to_elk_fs_key(const struct iris_screen *screen,
       .alpha_to_coverage = key->alpha_to_coverage ? ELK_ALWAYS : ELK_NEVER,
       .persample_interp = key->persample_interp ? ELK_ALWAYS : ELK_NEVER,
       .multisample_fbo = key->multisample_fbo ? ELK_ALWAYS : ELK_NEVER,
-      .force_dual_color_blend = key->force_dual_color_blend,
       .coherent_fb_fetch = key->coherent_fb_fetch,
       .color_outputs_valid = key->color_outputs_valid,
       .input_slots_valid = key->input_slots_valid,
@@ -2734,6 +2732,17 @@ iris_update_compiled_gs(struct iris_context *ice)
    }
 }
 
+static void
+iris_force_dual_color_blend(nir_shader *nir)
+{
+   nir_variable *var = nir_find_variable_with_location(nir, nir_var_shader_out,
+                                                       FRAG_RESULT_DATA1);
+   if (var) {
+      var->data.location = FRAG_RESULT_DATA0;
+      var->data.index = 1;
+   }
+}
+
 /**
  * Compile a fragment (pixel) shader, and upload the assembly.
  */
@@ -2760,6 +2769,9 @@ iris_compile_fs(struct iris_screen *screen,
    iris_setup_uniforms(devinfo, mem_ctx, nir, &system_values,
                        &num_system_values, &num_cbufs);
 
+   if (key->force_dual_color_blend)
+      iris_force_dual_color_blend(nir);
+
    /* Lower output variables to load_output intrinsics before setting up
     * binding tables, so iris_setup_binding_table can map any load_output
     * intrinsics to IRIS_SURFACE_GROUP_RENDER_TARGET_READ on Gfx8 for
diff --git a/src/intel/compiler/brw/brw_compiler.h b/src/intel/compiler/brw/brw_compiler.h
index 2afe5ad99ed..5ee2d461703 100644
--- a/src/intel/compiler/brw/brw_compiler.h
+++ b/src/intel/compiler/brw/brw_compiler.h
@@ -371,8 +371,6 @@ struct brw_fs_prog_key {
    bool alpha_test_replicate_alpha:1;
    enum intel_sometimes alpha_to_coverage:2;
 
-   bool force_dual_color_blend:1;
-
    /** Whether or inputs are interpolated at sample rate by default
     *
     * This corresponds to the sample shading API bit in Vulkan or OpenGL which
@@ -395,7 +393,7 @@ struct brw_fs_prog_key {
    bool ignore_sample_mask_out:1;
    bool coarse_pixel:1;
    bool api_sample_shading:1;
-   unsigned pad:12;
+   unsigned pad:13;
 };
 
 static inline bool
diff --git a/src/intel/compiler/brw/brw_from_nir.cpp b/src/intel/compiler/brw/brw_from_nir.cpp
index c84ba0cbff9..040a26a3b83 100644
--- a/src/intel/compiler/brw/brw_from_nir.cpp
+++ b/src/intel/compiler/brw/brw_from_nir.cpp
@@ -3292,7 +3292,7 @@ alloc_frag_output(nir_to_brw_state &ntb, unsigned location)
    const unsigned l = GET_FIELD(location, BRW_NIR_FRAG_OUTPUT_LOCATION);
    const unsigned i = GET_FIELD(location, BRW_NIR_FRAG_OUTPUT_INDEX);
 
-   if (i > 0 || (key->force_dual_color_blend && l == FRAG_RESULT_DATA1))
+   if (i > 0)
       return alloc_temporary(ntb.bld, 4, &s.dual_src_output, 1);
 
    else if (l == FRAG_RESULT_COLOR)
diff --git a/src/intel/compiler/jay/jay_nir.c b/src/intel/compiler/jay/jay_nir.c
index 7d9b4bfd724..f7dd15bc377 100644
--- a/src/intel/compiler/jay/jay_nir.c
+++ b/src/intel/compiler/jay/jay_nir.c
@@ -364,7 +364,6 @@ jay_process_nir(const struct intel_device_info *devinfo,
                    &prog_data->vue.vue_map, 0, 0);
    } else if (stage == MESA_SHADER_FRAGMENT) {
       assert(key->fs.mesh_input == INTEL_NEVER && "todo");
-      assert(!key->fs.force_dual_color_blend && "todo");
       brw_nir_apply_key(pt, &key->base, 32);
       brw_nir_lower_fs_inputs(nir, devinfo, &key->fs);
       brw_nir_lower_fs_outputs(nir);