From 95582e6fcbd5e62dd8f1148abc1689751357f036 Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Thu, 9 May 2024 18:27:27 +0200
Subject: codegen: memmove/memset cannot be non-temporal

---
 compiler/rustc_codegen_llvm/src/builder.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'compiler/rustc_codegen_llvm/src/builder.rs')

diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs
index 1a1b4ae3831..c85ace2ecd6 100644
--- a/compiler/rustc_codegen_llvm/src/builder.rs
+++ b/compiler/rustc_codegen_llvm/src/builder.rs
@@ -976,6 +976,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> {
         align: Align,
         flags: MemFlags,
     ) {
+        assert!(!flags.contains(MemFlags::NONTEMPORAL), "non-temporal memset not supported");
         let is_volatile = flags.contains(MemFlags::VOLATILE);
         unsafe {
             llvm::LLVMRustBuildMemSet(
-- 
cgit 1.4.1-3-g733a5