[llvm] [Docs][GlobalISel] Fix a long header in GenericOpcode (NFC) (PR #84976)

[Evgenii Kudriashov via llvm-commits]

https://github.com/e-kud created https://github.com/llvm/llvm-project/pull/84976

The broken header: https://llvm.org/docs/GlobalISel/GenericOpcode.html#g-atomic-cmpxchg

>From 4aec7b9d90599f342a2cb06283bfab9a2030f736 Mon Sep 17 00:00:00 2001
From: Evgenii Kudriashov <evgenii.kudriashov at intel.com>
Date: Tue, 12 Mar 2024 12:49:53 -0700
Subject: [PATCH] [Docs][GlobalISel] Fix a long header in GenericOpcode (NFC)

---
 llvm/docs/GlobalISel/GenericOpcode.rst | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/llvm/docs/GlobalISel/GenericOpcode.rst b/llvm/docs/GlobalISel/GenericOpcode.rst
index f9f9e1186460ee..89e3b47b6dff11 100644
--- a/llvm/docs/GlobalISel/GenericOpcode.rst
+++ b/llvm/docs/GlobalISel/GenericOpcode.rst
@@ -779,11 +779,17 @@ G_ATOMIC_CMPXCHG
 Generic atomic cmpxchg. Expects a MachineMemOperand in addition to explicit
 operands.
 
-G_ATOMICRMW_XCHG, G_ATOMICRMW_ADD, G_ATOMICRMW_SUB, G_ATOMICRMW_AND,
-G_ATOMICRMW_NAND, G_ATOMICRMW_OR, G_ATOMICRMW_XOR, G_ATOMICRMW_MAX,
-G_ATOMICRMW_MIN, G_ATOMICRMW_UMAX, G_ATOMICRMW_UMIN, G_ATOMICRMW_FADD,
-G_ATOMICRMW_FSUB, G_ATOMICRMW_FMAX, G_ATOMICRMW_FMIN
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+|all_g_atomicrmw|
+^^^^^^^^^^^^^^^^^
+
+.. |all_g_atomicrmw| replace:: G_ATOMICRMW_XCHG, G_ATOMICRMW_ADD,
+                               G_ATOMICRMW_SUB, G_ATOMICRMW_AND,
+                               G_ATOMICRMW_NAND, G_ATOMICRMW_OR,
+                               G_ATOMICRMW_XOR, G_ATOMICRMW_MAX,
+                               G_ATOMICRMW_MIN, G_ATOMICRMW_UMAX,
+                               G_ATOMICRMW_UMIN, G_ATOMICRMW_FADD,
+                               G_ATOMICRMW_FSUB, G_ATOMICRMW_FMAX,
+                               G_ATOMICRMW_FMIN
 
 Generic atomicrmw. Expects a MachineMemOperand in addition to explicit
 operands.