[clang] Filter out configuration line (PR #131099)

[Konrad Kleine via cfe-commits]

https://github.com/kwk created https://github.com/llvm/llvm-project/pull/131099

The commands to run the compilation when printed with `-###` shows various irrelevant lines for the perf-training. Most of them are filtered out already but when configured with
`CLANG_CONFIG_FILE_SYSTEM_DIR` a new line like the following is added and needs to be filtered out:

`Configuration file: /etc/clang/x86_64-redhat-linux-gnu-clang.cfg`

>From db5d475fd1e24278782536f9ed13b898a2bc450a Mon Sep 17 00:00:00 2001
From: Konrad Kleine <kkleine at redhat.com>
Date: Thu, 13 Mar 2025 09:12:24 +0100
Subject: [PATCH] Filter out configuration line

The commands to run the compilation when printed with `-###` shows
various irrelevant lines for the perf-training. Most of them are
filtered out already but when configured with
`CLANG_CONFIG_FILE_SYSTEM_DIR` a new line like the following is
added and needs to be filtered out:

`Configuration file: /etc/clang/x86_64-redhat-linux-gnu-clang.cfg`
---
 clang/utils/perf-training/perf-helper.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/clang/utils/perf-training/perf-helper.py b/clang/utils/perf-training/perf-helper.py
index 80c6356d0497c..29904aded5ab0 100644
--- a/clang/utils/perf-training/perf-helper.py
+++ b/clang/utils/perf-training/perf-helper.py
@@ -237,6 +237,7 @@ def get_cc1_command_for_args(cmd, env):
             or ln.startswith("InstalledDir:")
             or ln.startswith("LLVM Profile Note")
             or ln.startswith(" (in-process)")
+            or ln.startswith("Configuration file:")
             or " version " in ln
         ):
             continue