Avoid compute_lowest_and_highest_weight loop tail

ARM-software / astc-encoder

The Arm ASTC Encoder, a compressor for the Adaptive Scalable Texture Compression data format.

https://developer.arm.com/graphics

Apache License 2.0

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Avoid compute_lowest_and_highest_weight loop tail #521

Closed solidpixel closed 2 weeks ago

solidpixel commented 2 weeks ago

Changes the min/max scan in compute_lowest_and_highest_weight to use a predicated main loop which handles over-spill, rather than a main loop with a scalar loop tail.