ID3D12ShaderCacheSession::SetDeleteOnDestroy method (d3d12.h)

When all cache session objects corresponding to a given cache are destroyed, the cache is cleared.

See Remarks for the ways in which a disk cache can be cleared.

Syntax

void SetDeleteOnDestroy();

None

A disk cache can be cleared in one of the following ways.

Explicitly, by calling SetDeleteOnDestroy on the session object, and then releasing the session.
Explicitly, in developer mode, by calling ID3D12Device9::ShaderCacheControl with D3D12_SHADER_CACHE_KIND_FLAG_APPLICATION_MANAGED.
Implicitly, by creating a session object with a version that doesn't match the version used to create it.
Externally, by the disk cleanup utility enumerating it and clearing it. This won't happen for caches created with the D3D12_SHADER_CACHE_FLAG_USE_WORKING_DIR flag.
Manually, by deleting the files (*.idx, *.val, and *.lock) stored on disk for D3D12_SHADER_CACHE_FLAG_USE_WORKING_DIR caches. Your application shouldn't attempt to do this for caches stored outside of the working directory.