From 4b78dbe068445eb37cb28f2f8d1faf5836dc1175 Mon Sep 17 00:00:00 2001
From: Alex Rønne Petersen <alex@alexrp.com>
Date: Wed, 16 Oct 2024 06:07:13 +0200
Subject: Compilation: Omit Clang CPU model flags for some targets.

---
 src/target.zig | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'src/target.zig')

diff --git a/src/target.zig b/src/target.zig
index 1f8a567f03..f0ef89d4e9 100644
--- a/src/target.zig
+++ b/src/target.zig
@@ -315,6 +315,20 @@ pub fn clangAssemblerSupportsMcpuArg(target: std.Target) bool {
     };
 }
 
+/// Some experimental or poorly-maintained LLVM targets do not properly process CPU models in their
+/// Clang driver code. For these, we should omit the `-Xclang -target-cpu -Xclang <model>` flags.
+pub fn clangSupportsTargetCpuArg(target: std.Target) bool {
+    return switch (target.cpu.arch) {
+        .arc,
+        .msp430,
+        .ve,
+        .xcore,
+        .xtensa,
+        => false,
+        else => true,
+    };
+}
+
 pub fn clangSupportsFloatAbiArg(target: std.Target) bool {
     return switch (target.cpu.arch) {
         .arm,
-- 
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