Update Enzyme submodule to imporve llvm-cov

[ZuseZ4]

No description provided.

[rustbot]

r? @jieyouxu

rustbot has assigned @jieyouxu.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

Why was this reviewer chosen?

The reviewer was selected based on:

• Fallback group: @Mark-Simulacrum, @jieyouxu
• @Mark-Simulacrum, @jieyouxu expanded to Mark-Simulacrum, jieyouxu
• Random selection from Mark-Simulacrum, jieyouxu

[rustbot]

⚠️ Warning ⚠️

• Some commits in this PR modify submodules.

  If this was not intentional, see I changed a submodule on accident in the rustc dev guide.

[rustbot]

This PR was rebased onto a different main commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

[jieyouxu]

@bors r+

[rust-bors]

📌 Commit 6206d04 has been approved by jieyouxu

It is now in the queue for this repository.

🌲 The tree is currently closed for pull requests below priority 100. This pull request will be tested once the tree is reopened.

Reason for tree closure: spurious failures

[JonathanBrouwer]

@bors try jobs=x86_64-mingw
Running try job to debug rollup failure

[rust-bors]

💔 Test for 8aca7ec failed: CI. Failed job:

• Calculate job matrix (web logs, enhanced plaintext logs)

[JonathanBrouwer]

@bors try jobs=x86_64-mingw

[rust-bors]

💔 Test for fdfe622 failed: CI. Failed job:

• Calculate job matrix (web logs, enhanced plaintext logs)

[rust-log-analyzer]

A job failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

   Compiling askama v0.16.0
   Compiling citool v0.1.0 (/home/runner/work/rust/rust/src/ci/citool)
    Finished `dev` profile [unoptimized] target(s) in 18.71s
     Running `target/debug/citool calculate-job-matrix`
Run type: TryJob { job_patterns: Some(["x86_64-mingw"]) }
Error: Failed to calculate job matrix

Caused by:
    Patterns `x86_64-mingw` did not match any auto jobs
##[error]Process completed with exit code 1.

[rust-log-analyzer]

A job failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

   Compiling ureq v3.0.8
   Compiling citool v0.1.0 (/home/runner/work/rust/rust/src/ci/citool)
    Finished `dev` profile [unoptimized] target(s) in 17.64s
     Running `target/debug/citool calculate-job-matrix`
Run type: TryJob { job_patterns: Some(["x86_64-mingw"]) }
Error: Failed to calculate job matrix

Caused by:
    Patterns `x86_64-mingw` did not match any auto jobs
##[error]Process completed with exit code 1.

[ZuseZ4]

I'm not sure it's this PR:

https://github.com/rust-lang/enzyme/commits/main/ is on commit fe8484e4d3da5a4628ea59a66ed2d2e9664b96a1, which also matches my submodule update:

commit 6206d0462e666b6d7310be899348c3941967823b (HEAD -> enzyme-update-llvm-cov, zuse/enzyme-update-llvm-cov)
Author: Manuel Drehwald <git@manuel.drehwald.info>
Date:   Sun Jul 26 00:54:12 2026 -0400

    Update Enzyme submodule to imporve llvm-cov

diff --git a/src/tools/enzyme b/src/tools/enzyme
index 6882b799d5a..fe8484e4d3d 160000
--- a/src/tools/enzyme
+++ b/src/tools/enzyme
@@ -1 +1 @@
-Subproject commit 6882b799d5aac80c5da7a4ef4e1b199e49509508
+Subproject commit fe8484e4d3da5a4628ea59a66ed2d2e9664b96a1

Plus, all PR CI passed. Github being flaky?

[JonathanBrouwer]

@bors try jobs=x86_64-mingw-1

[JonathanBrouwer]

The try job failed because I was a dumb dumb and specified the wrong job name. Trying again :p

[rust-bors]

☀️ Try build successful (CI)
Build commit: 52734f7 (52734f713a00421034df5c1b9daa0cc743a44b0b)
Base parent: 9451e06 (9451e069c34e1d7db23a155dcf9c25d1bc127055)