[clang] [Driver][Solaris] Remove reachable llvm_unreachable (PR #76645)

[Brad Smith via cfe-commits]

https://github.com/brad0 created https://github.com/llvm/llvm-project/pull/76645

Remove the llvm_unreachable from getSolarisLibSuffix(). The code path is
reachable. In the case of an unsupported architecture we're not worrying
about trying to actually find the library paths, and I don't think it
makes sense for the Driver to crash.

Fixes #58334

>From a79555f4f862a7717ce9e50973e9609bb5eadf97 Mon Sep 17 00:00:00 2001
From: Brad Smith <brad at comstyle.com>
Date: Sat, 30 Dec 2023 21:37:55 -0500
Subject: [PATCH] [Driver][Solaris] Remove reachable llvm_unreachable

Remove the llvm_unreachable from getSolarisLibSuffix(). The code path is
reachable. In the case of an unsupported architecture we're not worrying
about trying to actually find the library paths, and I don't think it
makes sense for the Driver to crash.

Fixes #58334
---
 clang/lib/Driver/ToolChains/Solaris.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/clang/lib/Driver/ToolChains/Solaris.cpp b/clang/lib/Driver/ToolChains/Solaris.cpp
index 9a9792d019d5ed..200ac46aa53409 100644
--- a/clang/lib/Driver/ToolChains/Solaris.cpp
+++ b/clang/lib/Driver/ToolChains/Solaris.cpp
@@ -295,13 +295,12 @@ static StringRef getSolarisLibSuffix(const llvm::Triple &Triple) {
   switch (Triple.getArch()) {
   case llvm::Triple::x86:
   case llvm::Triple::sparc:
+  default:
     break;
   case llvm::Triple::x86_64:
     return "/amd64";
   case llvm::Triple::sparcv9:
     return "/sparcv9";
-  default:
-    llvm_unreachable("Unsupported architecture");
   }
   return "";
 }