Stream: git-wasmtime

Topic: wasmtime / PR #4231 cranelift-native flags detection: fix...

Wasmtime GitHub notifications bot (Jun 06 2022 at 23:11):

cfallin opened PR #4231 from fix-x64-baseline-flags to main:

In #4224 we saw that an SSE2-only x86-64 system somehow was still
detecting SSE3/SSSE3/SSE4.1/SSE4.2. It turns out that we enabled these
in the baseline Flags in #3816, because without that, a ton of other
things break: default flags no longer produce a compiler backend that
works with default Wasmtime settings. However the logic to set them when
detected (via CPUID-using feature-test macros) only does an "if
detected then set bit" step per feature; the bits are never cleared.
This PR fixes that.

This should be relatively temporary: once we fix #3810, then we can
remove this hack by making the default Flags state all-zeroes again,
as a compiler with default flags will again support a default Wasmtime.

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Wasmtime GitHub notifications bot (Jun 06 2022 at 23:11):

cfallin requested abrown for a review on PR #4231.

Wasmtime GitHub notifications bot (Jun 06 2022 at 23:12):

cfallin updated PR #4231 from fix-x64-baseline-flags to main.

Wasmtime GitHub notifications bot (Jun 08 2022 at 20:44):

alexcrichton submitted PR review.

Wasmtime GitHub notifications bot (Jun 08 2022 at 20:48):

cfallin merged PR #4231.

Last updated: Dec 23 2024 at 12:05 UTC