diff --git a/include/vkd3d_shader.h b/include/vkd3d_shader.h
index 83570128cf..4a14846861 100644
--- a/include/vkd3d_shader.h
+++ b/include/vkd3d_shader.h
@@ -231,6 +231,7 @@ enum vkd3d_shader_interface_flag
     VKD3D_SHADER_INTERFACE_RAW_VA_ALIAS_DESCRIPTOR_BUFFER   = 0x00000020u,
     VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER            = 0x00000040u,
     VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER_FULL       = 0x00000080u,
+    VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER_FLUSH_NAN  = 0x00000100u,
 };
 
 struct vkd3d_shader_stage_io_entry
diff --git a/libs/vkd3d-shader/dxil.c b/libs/vkd3d-shader/dxil.c
index 1b2f11acd4..c14ff4f7e3 100644
--- a/libs/vkd3d-shader/dxil.c
+++ b/libs/vkd3d-shader/dxil.c
@@ -748,6 +748,8 @@ int vkd3d_shader_compile_dxil(const struct vkd3d_shader_code *dxbc,
         helper.type = DXIL_SPV_INSTRUCTION_INSTRUMENTATION_TYPE_EXTERNALLY_VISIBLE_WRITE_NAN_INF;
         if (shader_interface_info->flags & VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER_FULL)
             helper.type = DXIL_SPV_INSTRUCTION_INSTRUMENTATION_TYPE_FULL_NAN_INF;
+        else if (shader_interface_info->flags & VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER_FLUSH_NAN)
+            helper.type = DXIL_SPV_INSTRUCTION_INSTRUMENTATION_TYPE_FLUSH_NAN_TO_ZERO;
 
         if (dxil_spv_converter_add_option(converter, &helper.base) != DXIL_SPV_SUCCESS)
         {
diff --git a/libs/vkd3d/debug_common.c b/libs/vkd3d/debug_common.c
index 1e7510595a..92a24d6422 100644
--- a/libs/vkd3d/debug_common.c
+++ b/libs/vkd3d/debug_common.c
@@ -112,6 +112,8 @@ void vkd3d_shader_hash_range_parse(FILE *file, struct vkd3d_shader_hash_range **
                     (*ranges)[new_count].flags = VKD3D_SHADER_HASH_RANGE_QA_FLAG_DISALLOW;
                 else if (strcmp(end_ptr, "full") == 0)
                     (*ranges)[new_count].flags = VKD3D_SHADER_HASH_RANGE_QA_FLAG_FULL_QA;
+                else if (strcmp(end_ptr, "flush-nan") == 0)
+                    (*ranges)[new_count].flags = VKD3D_SHADER_HASH_RANGE_QA_FLAG_FLUSH_NAN;
                 else
                     end_ptr = "N/A";
 
diff --git a/libs/vkd3d/descriptor_debug.c b/libs/vkd3d/descriptor_debug.c
index 7371e08f29..b37487aa7b 100644
--- a/libs/vkd3d/descriptor_debug.c
+++ b/libs/vkd3d/descriptor_debug.c
@@ -447,6 +447,11 @@ uint32_t vkd3d_descriptor_debug_get_shader_interface_flags(
             flags = VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER_FULL |
                     VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER;
         }
+        else if (flags & VKD3D_SHADER_HASH_RANGE_QA_FLAG_FLUSH_NAN)
+        {
+            flags = VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER_FLUSH_NAN |
+                    VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER;
+        }
         else if (flags & VKD3D_SHADER_HASH_RANGE_QA_FLAG_ALLOW)
             flags = VKD3D_SHADER_INTERFACE_INSTRUCTION_QA_BUFFER;
     }
diff --git a/libs/vkd3d/vkd3d_private.h b/libs/vkd3d/vkd3d_private.h
index 63abb30c19..056fdea323 100644
--- a/libs/vkd3d/vkd3d_private.h
+++ b/libs/vkd3d/vkd3d_private.h
@@ -3523,7 +3523,8 @@ enum vkd3d_shader_hash_range_qa_flags
 {
     VKD3D_SHADER_HASH_RANGE_QA_FLAG_ALLOW = 1 << 0,
     VKD3D_SHADER_HASH_RANGE_QA_FLAG_DISALLOW = 1 << 1,
-    VKD3D_SHADER_HASH_RANGE_QA_FLAG_FULL_QA = 1 << 2
+    VKD3D_SHADER_HASH_RANGE_QA_FLAG_FULL_QA = 1 << 2,
+    VKD3D_SHADER_HASH_RANGE_QA_FLAG_FLUSH_NAN = 1 << 3
 };
 
 struct vkd3d_shader_hash_range