From f2dfd7d212f8ec01c8bc6a98e0f7a139c4be5b14 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carl=20=C3=85stholm?= <carl@astholm.se>
Date: Tue, 9 Jan 2024 17:35:40 +0100
Subject: [PATCH] Override incorrect ARM Cortex-M series CPU feature
 definitions

Based on the Arm Cortex-M Processor Comparison Table v3.0
<https://developer.arm.com/documentation/102787/0300/?lang=en>
---
 tools/update_cpu_features.zig | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tools/update_cpu_features.zig b/tools/update_cpu_features.zig
index 51d09d2dd6..8e6a765cd6 100644
--- a/tools/update_cpu_features.zig
+++ b/tools/update_cpu_features.zig
@@ -379,6 +379,31 @@ const llvm_targets = [_]LlvmTarget{
                 .llvm_name = "cortex-a710",
                 .flatten = true,
             },
+            .{
+                .llvm_name = "cortex-m4",
+                .omit_deps = &.{"vfp4d16sp"},
+            },
+            .{
+                .llvm_name = "cortex-m7",
+                .omit_deps = &.{"fp_armv8d16"},
+            },
+            .{
+                .llvm_name = "cortex-m33",
+                .omit_deps = &.{ "fp_armv8d16sp", "dsp" },
+            },
+            .{
+                .llvm_name = "cortex-m35p",
+                .omit_deps = &.{ "fp_armv8d16sp", "dsp" },
+            },
+            .{
+                .llvm_name = "cortex-m55",
+                .omit_deps = &.{ "mve_fp", "fp_armv8d16" },
+            },
+            .{
+                .llvm_name = "cortex-m85",
+                .omit_deps = &.{ "mve_fp", "pacbti", "fp_armv8d16" },
+                .extra_deps = &.{"trustzone"},
+            },
             .{
                 .llvm_name = "cortex-x1c",
                 .flatten = true,