diff --git a/src/microsoft/spirv_to_dxil/spirv_to_dxil.c b/src/microsoft/spirv_to_dxil/spirv_to_dxil.c
index 4b5bd8a636a..ea643979002 100644
--- a/src/microsoft/spirv_to_dxil/spirv_to_dxil.c
+++ b/src/microsoft/spirv_to_dxil/spirv_to_dxil.c
@@ -177,8 +177,7 @@ struct lower_load_push_constant_data {
    nir_address_format ubo_format;
    unsigned desc_set;
    unsigned binding;
-   uint32_t min;
-   uint32_t max;
+   unsigned size;
 };
 
 static bool
@@ -199,8 +198,8 @@ lower_load_push_constant(struct nir_builder *builder, nir_instr *instr,
 
    uint32_t base = nir_intrinsic_base(intrin);
    uint32_t range = nir_intrinsic_range(intrin);
-   data->min = MIN2(data->min, base);
-   data->max = MAX2(data->max, base + range);
+
+   data->size = MAX2(base + range, data->size);
 
    builder->cursor = nir_after_instr(instr);
    nir_address_format ubo_format = data->ubo_format;
@@ -239,8 +238,6 @@ dxil_spirv_nir_lower_load_push_constant(nir_shader *shader,
       .ubo_format = ubo_format,
       .desc_set = desc_set,
       .binding = binding,
-      .min = UINT32_MAX,
-      .max = 0,
    };
    ret = nir_shader_instructions_pass(shader, lower_load_push_constant,
                                       nir_metadata_block_index |
@@ -248,10 +245,7 @@ dxil_spirv_nir_lower_load_push_constant(nir_shader *shader,
                                          nir_metadata_loop_analysis,
                                       &data);
 
-   if (data.min >= data.max)
-      *size = 0;
-   else
-      *size = (data.max - data.min);
+   *size = data.size;
 
    assert(ret == (*size > 0));