From 047ed32148a39bc38ad18363ded9ab845dd313ee Mon Sep 17 00:00:00 2001
From: Tim Neumann <timnn@google.com>
Date: Mon, 24 Apr 2023 08:30:05 +0000
Subject: [PATCH] [LLVM17] Adapt to `ExplicitEmulatedTLS` removal.

---
 compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
index 90cce9a8650..1acdc95ca8d 100644
--- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
+++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
@@ -410,10 +410,15 @@ extern "C" LLVMTargetMachineRef LLVMRustCreateTargetMachine(
   }
   Options.RelaxELFRelocations = RelaxELFRelocations;
   Options.UseInitArray = UseInitArray;
+
+#if LLVM_VERSION_LT(17, 0)
   if (ForceEmulatedTls) {
     Options.ExplicitEmulatedTLS = true;
     Options.EmulatedTLS = true;
   }
+#else
+  Options.EmulatedTLS = ForceEmulatedTls || Trip.hasDefaultEmulatedTLS();
+#endif
 
   if (TrapUnreachable) {
     // Tell LLVM to codegen `unreachable` into an explicit trap instruction.