[clang] [clang] [MinGW] Handle linking ARM64EC code (PR #78912)

[Billy Laws via cfe-commits]

https://github.com/bylaws created https://github.com/llvm/llvm-project/pull/78912

Depends on #78911.

CC: @cjacek

>From 9e72d5c3cd2be7e0967a3f9d7c0d1231e6e97128 Mon Sep 17 00:00:00 2001
From: Billy Laws <blaws05 at gmail.com>
Date: Wed, 18 Oct 2023 21:23:38 +0100
Subject: [PATCH] [clang] [MinGW] Handle linking ARM64EC code

---
 clang/lib/Driver/ToolChains/MinGW.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/clang/lib/Driver/ToolChains/MinGW.cpp b/clang/lib/Driver/ToolChains/MinGW.cpp
index 18fc9d4b6807e3..fded966484dfed 100644
--- a/clang/lib/Driver/ToolChains/MinGW.cpp
+++ b/clang/lib/Driver/ToolChains/MinGW.cpp
@@ -132,7 +132,10 @@ void tools::MinGW::Linker::ConstructJob(Compilation &C, const JobAction &JA,
     CmdArgs.push_back("thumb2pe");
     break;
   case llvm::Triple::aarch64:
-    CmdArgs.push_back("arm64pe");
+    if (TC.getEffectiveTriple().isWindowsArm64EC())
+      CmdArgs.push_back("arm64ecpe");
+    else
+      CmdArgs.push_back("arm64pe");
     break;
   default:
     D.Diag(diag::err_target_unknown_triple) << TC.getEffectiveTriple().str();