tree 1281e70e8593ab217e59362d7154e771bdff3ec2
parent ce9f17f5c0c9a08ec8f7b832ded2c2f5625750e1
author Nicolas Capens <capn@google.com> 1634332844 -0400
committer Nicolas Capens <nicolascapens@google.com> 1634618873 +0000

Avoid SPIR-V binary identifier clashes

If we ever use both unoptimized and optimized SPIR-V binaries (e.g. as
part of tiered JIT compilation), we need them to have different
identifiers. This is accomplished by using the bitwise inverse of the
unoptimized binary's identifier as the one for the optimized binary.

Note this only affects cases where no pipeline cache is being used. If
one is used, we use the identifier that got assigned when creating the
cache entry.

Bug: b/172839674
Change-Id: I894a01f21518b046845cd56dcbb0d13cea1ff94b
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/58270
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>