Yes, I think the conclusion was that it did improve performance on binaries that were not compiled with optimizations, but didn't generate enough gains on optimized binaries to set of the cost of re-compilation.

https://dl.acm.org/doi/10.1145/358438.349303

(this is not about x86 but PA-RISC, but the conclusions would likely be very similar...)

I believe it was HP who accidentally tried this while making an early equivalent of Rosetta to deal with a hardware change on their mainframes and mini computers. They modified it to run same-same translations and they did get notable performance improvements by doing so.

I’m pretty sure this experiment happened before Transmeta existed, or when it was still forming. So it ended up being evidence that what they were doing might work. It also was evidence that Java wasn’t completely insane to exist.

Notably VMware and alike in pre-hardware virtualization era did something like that to run x86 programs fast under virtualization instead of interpreting x86 through emulation.