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

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-driver

Author: Billy Laws (bylaws)

<details>
<summary>Changes</summary>

Depends on #<!-- -->78911.

CC: @<!-- -->cjacek

---
Full diff: https://github.com/llvm/llvm-project/pull/78912.diff


1 Files Affected:

- (modified) clang/lib/Driver/ToolChains/MinGW.cpp (+4-1) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/MinGW.cpp b/clang/lib/Driver/ToolChains/MinGW.cpp
index 18fc9d4b6807e38..fded966484dfed8 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();

``````````

</details>


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