[llvm] llvm/cmake/config.guess: add support for e2k (Elbrus-2000) (PR #162460)

[Ramil Sattarov via llvm-commits]

https://github.com/r-a-sattarov created https://github.com/llvm/llvm-project/pull/162460

backport patch from gnu-config:
- https://lists.gnu.org/archive/html/config-patches/2015-03/msg00000.html

>From 263a9777ca91d748727ecfb258e1ab1da8b29f6d Mon Sep 17 00:00:00 2001
From: r-a-sattarov <r.a.sattarov at yandex.ru>
Date: Wed, 8 Oct 2025 15:10:22 +0300
Subject: [PATCH] llvm/cmake/config.guess: add support for e2k (Elbrus-2000)
 backport patch from gnu-config: -
 https://lists.gnu.org/archive/html/config-patches/2015-03/msg00000.html

---
 llvm/cmake/config.guess | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/llvm/cmake/config.guess b/llvm/cmake/config.guess
index 27b55bd166edc..2c22d6d810c01 100644
--- a/llvm/cmake/config.guess
+++ b/llvm/cmake/config.guess
@@ -908,6 +908,9 @@ EOF
     crisv32:Linux:*:*)
 	echo crisv32-axis-linux-gnu
 	exit ;;
+    e2k:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-gnu
+	exit ;;
     frv:Linux:*:*)
 	echo frv-unknown-linux-gnu
 	exit ;;