https://bugs.freedesktop.org/show_bug.cgi?id=79783
--- Comment #10 from gregory.hain...@gmail.com --- Extrat of the GL4.5 spec: ------------------------------------------- Chapter 7.4.1 With separable program objects, interfaces between shader stages may involve the outputs from one program object and the inputs from a second program object. For such interfaces, it is not possible to detect mismatches at link time, because the programs are linked separately. When each such program is linked, all inputs or outputs interfacing with another program stage are treated as active. The linker will generate an executable that assumes the presence of a compatible program on the other side of the interface. If a mismatch between programs occurs, no GL error is generated, but some or all of the inputs on the interface will be undefined. ------------------------------------------- So inputs/outputs can't be removed by optimization as they must remain active. -- You are receiving this mail because: You are the assignee for the bug.
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