Assertion failure compiling shader from Zigguart
While compiling shaders/closed/steam/ziggurat/vp-2155.shader_test from Intel's private shader-db, on Iris I get the following assertion.
run: src/mesa/state_tracker/st_mesa_to_tgsi.c:100: dst_register: Assertion `t->outputMapping[index] < ARRAY_SIZE(t->outputs)' failed.
This is in shared Gallium code, so it's not terribly surprising that the shader compiles fine on i965. I haven't bisected yet. I first encountered this at a9560939.