Description
Running textureSample CTS execution tests fails on my M2 Macbook Pro

Repro steps

cargo xtask cts 'webgpu:shader,execution,expression,call,builtin,textureSample:*'

Same result in Firefox.

Expected vs observed behavior

The tests fail. With the --debug flag passed to the CTS runner, we can see that the incorrect samples have the values as if they were sampled from pixel 0,0

Platform
Current trunk. M2 Macbook pro. Sequoia 15.4.1