Eric Anholt
fd1d22b92e
In our backend, the successor edges from the blocks only point to where QPU control flow goes, not where the notional control flow goes from a "break" or "continue" modifying the execution mask to resume writing to some channels later. As a result, this attempt at restricting live ranges ended up missing the live range of a value where a conditional break/continue was present in a loop before the later def of a variable. The previous commit ended up fixing the problem that the flag tried to solve. Fixes glsl-vs-loop-continue.shader_test and/or glsl-vs-loop-redundant-condition.shader_test based on register allocation results.
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