Stream: git-wasmtime

Topic: wasmtime / PR #1582 Fix ImmLogic.invert(), and with it, `...

Wasmtime GitHub notifications bot (Apr 23 2020 at 01:35):

cfallin opened PR #1582 (assigned to bnjbvr) from aarch64-fcopysign to master:

Previously, fcopysign was mysteriously failing to pass the
float_misc spec test. This was tracked down to bad logical-immediate
masks used to separate the sign and not-sign bits. In particular, the
masks for the and-not operations were wrong. The invert() function on
an ImmLogic immediate, it turns out, assumed every immediate would be
used by a 64-bit instruction; ImmLogic immediates are subtly different
for 32-bit instructions. This change tracks the instruction size (32 or
64 bits) intended for use with each such immediate, and passes it back
into maybe_from_u64 when computing the inverted immediate.

Addresses one of the failures (float_misc) for #1521 (test failures)
and presumably helps #1519 (SpiderMonkey integration).

<!--

Please ensure that the following steps are all taken care of before submitting
the PR.

• [ ] This has been discussed in issue #..., or if not, please tell us why
  here.

• [ ] A short description of what this does, why it is needed; if the
  description becomes long, the matter should probably be discussed in an issue
  first.

• [ ] This PR contains test cases, if meaningful.

• [ ] A reviewer from the core maintainer team has been assigned for this PR.
  If you don't know who could review this, please indicate so. The list of
  suggested reviewers on the right can help you.

Please ensure all communication adheres to the code of conduct.
-->

Wasmtime GitHub notifications bot (Apr 23 2020 at 01:35):

cfallin assigned PR #1582 to bnjbvr.

Wasmtime GitHub notifications bot (Apr 23 2020 at 01:35):

cfallin assigned PR #1582 to bnjbvr.

Wasmtime GitHub notifications bot (Apr 23 2020 at 09:05):

jgouly submitted PR Review.

Wasmtime GitHub notifications bot (Apr 23 2020 at 09:05):

jgouly submitted PR Review.

Wasmtime GitHub notifications bot (Apr 23 2020 at 09:05):

jgouly created PR Review Comment:

Can we just get rid of from_raw() and use maybe_from_u64().unwrap()?

Wasmtime GitHub notifications bot (Apr 23 2020 at 09:16):

jgouly submitted PR Review.

Wasmtime GitHub notifications bot (Apr 23 2020 at 09:16):

jgouly created PR Review Comment:

This fixes f32 and f64 _bitwise.

Wasmtime GitHub notifications bot (Apr 23 2020 at 09:39):

bnjbvr submitted PR Review.

Wasmtime GitHub notifications bot (Apr 23 2020 at 19:53):

cfallin updated PR #1582 (assigned to bnjbvr) from aarch64-fcopysign to master:

Previously, fcopysign was mysteriously failing to pass the
float_misc spec test. This was tracked down to bad logical-immediate
masks used to separate the sign and not-sign bits. In particular, the
masks for the and-not operations were wrong. The invert() function on
an ImmLogic immediate, it turns out, assumed every immediate would be
used by a 64-bit instruction; ImmLogic immediates are subtly different
for 32-bit instructions. This change tracks the instruction size (32 or
64 bits) intended for use with each such immediate, and passes it back
into maybe_from_u64 when computing the inverted immediate.

Addresses one of the failures (float_misc) for #1521 (test failures)
and presumably helps #1519 (SpiderMonkey integration).

<!--

Please ensure that the following steps are all taken care of before submitting
the PR.

• [ ] This has been discussed in issue #..., or if not, please tell us why
  here.

• [ ] A short description of what this does, why it is needed; if the
  description becomes long, the matter should probably be discussed in an issue
  first.

• [ ] This PR contains test cases, if meaningful.

• [ ] A reviewer from the core maintainer team has been assigned for this PR.
  If you don't know who could review this, please indicate so. The list of
  suggested reviewers on the right can help you.

Please ensure all communication adheres to the code of conduct.
-->

Wasmtime GitHub notifications bot (Apr 23 2020 at 20:06):

cfallin updated PR #1582 (assigned to bnjbvr) from aarch64-fcopysign to master:

Previously, fcopysign was mysteriously failing to pass the
float_misc spec test. This was tracked down to bad logical-immediate
masks used to separate the sign and not-sign bits. In particular, the
masks for the and-not operations were wrong. The invert() function on
an ImmLogic immediate, it turns out, assumed every immediate would be
used by a 64-bit instruction; ImmLogic immediates are subtly different
for 32-bit instructions. This change tracks the instruction size (32 or
64 bits) intended for use with each such immediate, and passes it back
into maybe_from_u64 when computing the inverted immediate.

Addresses one of the failures (float_misc) for #1521 (test failures)
and presumably helps #1519 (SpiderMonkey integration).

<!--

Please ensure that the following steps are all taken care of before submitting
the PR.

• [ ] This has been discussed in issue #..., or if not, please tell us why
  here.

• [ ] A short description of what this does, why it is needed; if the
  description becomes long, the matter should probably be discussed in an issue
  first.

• [ ] This PR contains test cases, if meaningful.

• [ ] A reviewer from the core maintainer team has been assigned for this PR.
  If you don't know who could review this, please indicate so. The list of
  suggested reviewers on the right can help you.

Please ensure all communication adheres to the code of conduct.
-->

Wasmtime GitHub notifications bot (Apr 23 2020 at 20:42):

cfallin merged PR #1582.

Last updated: Nov 22 2024 at 16:03 UTC