GitLab

Extend file path cache to 64 bit integer.

Change-Id: I5627f13d59a3214f389087038482cbcc8d0eb484
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

We now generate an empty fake file.

Change-Id: I92fef2b24dce788c1d1b675b034d4b31346b80d9
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

Change-Id: I6da1cc60d425f654a31570373eb3b4f660d5f975
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

Compiling every header file again and again is quite time comsuming. There
are technics to improve this like preambles(a kind of automated
precompiled header) but they don't share their data between translation
units. This approach provides an automatically generated precompiled
header for every project and subproject to improve the loading time.

Change-Id: I34f5bd4db21951175920e2a9bbf6b97b1d705969
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>