[lld] lld: Add initial support for GNU LTO format (PR #157175)

[via llvm-commits]

github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {darker}-->


:warning: Python code formatter, darker found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
darker --check --diff -r origin/main...HEAD lld/test/lit.cfg.py
``````````

:warning:
The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
:warning:

</details>

<details>
<summary>
View the diff from darker here.
</summary>

``````````diff
--- lit.cfg.py	2025-09-05 20:54:25.000000 +0000
+++ lit.cfg.py	2025-09-05 21:05:51.530316 +0000
@@ -181,22 +181,24 @@
 
 # ELF tests expect the default target for ld.lld to be ELF.
 if config.ld_lld_default_mingw:
     config.excludes.append("ELF")
 
+
 def prepend_path(path):
-    target_arch = getattr(config, 'target_arch', None)
-    name = 'PATH'
-    if config.operating_system == 'Windows':
-        sep = ';'
+    target_arch = getattr(config, "target_arch", None)
+    name = "PATH"
+    if config.operating_system == "Windows":
+        sep = ";"
     else:
-        sep = ':'
+        sep = ":"
     if name in config.environment:
         config.environment[name] = path + sep + config.environment[name]
     else:
         config.environment[name] = path
 
+
 gcc_executable = lit.util.which("gcc", config.environment["PATH"])
 if gcc_executable:
     config.available_features.add("gcc")
 
 if config.has_gnu_lto:

``````````

</details>


https://github.com/llvm/llvm-project/pull/157175