This is Richard's work-in-process code to implement the flow control IL instructions that come down from Mesa. As far as I know the code has run and passed simple test cases but that's all. We wanted to get the code out into the public repository so other developers could see and try it.
It's possible that everything could Just Work (tm) immediately, of course, but unlikely. Enabling GLSL at this point would cause some applications to stop using arb_fp/arb_vp code paths (which work) and use untested GLSL paths instead resulting in application breakage, nasty blog posts, and hordes of angry users marching up the hillside with flaming torches.
It's possible that everything could Just Work (tm) immediately, of course, but unlikely. Enabling GLSL at this point would cause some applications to stop using arb_fp/arb_vp code paths (which work) and use untested GLSL paths instead resulting in application breakage, nasty blog posts, and hordes of angry users marching up the hillside with flaming torches.
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