[clang] [UserManual] Document clang option for loop interchange (PR #147014)

[Madhur Amilkanthwar via cfe-commits]

https://github.com/madhur13490 created https://github.com/llvm/llvm-project/pull/147014

None

>From e19caa08f790159fbda9ce5f4b22089b36add661 Mon Sep 17 00:00:00 2001
From: Madhur Amilkanthwar <madhura at nvidia.com>
Date: Thu, 3 Jul 2025 21:54:29 -0700
Subject: [PATCH] [UserManual] Document clang option for loop interchange

---
 clang/docs/UsersManual.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/clang/docs/UsersManual.rst b/clang/docs/UsersManual.rst
index 284a404026dfe..50fe276e8dd58 100644
--- a/clang/docs/UsersManual.rst
+++ b/clang/docs/UsersManual.rst
@@ -2582,6 +2582,8 @@ are listed below.
 
     $ clang -fuse-ld=lld -Oz -Wl,--icf=safe -fcodegen-data-use code.cc
 
+.. option:: -f[no-]loop-interchange
+  Enable Loop Interchange transformation.
 .. _strict_aliasing:
 
 Strict Aliasing