https://github.com/sthibaul created 
https://github.com/llvm/llvm-project/pull/78520

We do not handle all architectures, llvm_unreachable is called after the 
switch, so we can just break.

Fixes https://lab.llvm.org/buildbot/#/builders/19/builds/23702

>From 682392edc899cdae19e73548feaf118e137e1aaa Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thiba...@ens-lyon.org>
Date: Thu, 18 Jan 2024 00:18:03 +0100
Subject: [PATCH] hurd: Fix build with -Werror,-Wswitch

We do not handle all architectures, llvm_unreachable is called after the
switch, so we can just break.

Fixes https://lab.llvm.org/buildbot/#/builders/19/builds/23702
---
 clang/lib/Driver/ToolChains/Hurd.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/clang/lib/Driver/ToolChains/Hurd.cpp 
b/clang/lib/Driver/ToolChains/Hurd.cpp
index 5074eda5f41559..36499fb11ad88f 100644
--- a/clang/lib/Driver/ToolChains/Hurd.cpp
+++ b/clang/lib/Driver/ToolChains/Hurd.cpp
@@ -135,6 +135,8 @@ Tool *Hurd::buildAssembler() const {
 
 std::string Hurd::getDynamicLinker(const ArgList &Args) const {
   switch (getArch()) {
+  default:
+    break;
   case llvm::Triple::x86:
     return "/lib/ld.so";
   case llvm::Triple::x86_64:

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