[clang] [PowerPC] Support mcmodel=large for AIX (PR #70652)

[Qiu Chaofan via cfe-commits]

https://github.com/ecnelises created https://github.com/llvm/llvm-project/pull/70652

7e42545 rejects unsupported mcmodel options, but large should be a supported model for 32-bit AIX targets.

>From 09c722552b69dd812c9117ba9832055f3abbf9a1 Mon Sep 17 00:00:00 2001
From: Qiu Chaofan <qiucofan at cn.ibm.com>
Date: Mon, 30 Oct 2023 19:24:58 +0800
Subject: [PATCH] [PowerPC] Support mcmodel=large for AIX

7e42545 rejects unsupported mcmodel options, but large should be a
supported model for 32-bit AIX targets.
---
 clang/lib/Driver/ToolChains/Clang.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 43a92adbef64ba8..6fbdf2c21952d00 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -5723,7 +5723,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
   if (Arg *A = Args.getLastArg(options::OPT_mcmodel_EQ)) {
     StringRef CM = A->getValue();
     bool Ok = false;
-    if (Triple.isOSAIX() && CM == "medium") {
+    if (Triple.isOSAIX() && (CM == "medium" || CM == "large")) {
       CM = "large";
       Ok = true;
     }