From adadd4700eff107723cae421f5f95c5310fbc43c Mon Sep 17 00:00:00 2001
From: Brian White <mscdex@mscdex.net>
Date: Sun, 18 Feb 2024 07:27:36 -0500
Subject: [PATCH] Add ECV flag on macOS/iOS

---
 src/impl_aarch64_macos_or_iphone.c | 1 +
 test/cpuinfo_aarch64_test.cc       | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/impl_aarch64_macos_or_iphone.c b/src/impl_aarch64_macos_or_iphone.c
index d7f55a32..5d151958 100644
--- a/src/impl_aarch64_macos_or_iphone.c
+++ b/src/impl_aarch64_macos_or_iphone.c
@@ -81,6 +81,7 @@ Aarch64Info GetAarch64Info(void) {
   info.features.i8mm = GetDarwinSysCtlByName("hw.optional.arm.FEAT_I8MM");
   info.features.bf16 = GetDarwinSysCtlByName("hw.optional.arm.FEAT_BF16");
   info.features.bti = GetDarwinSysCtlByName("hw.optional.arm.FEAT_BTI");
+  info.features.ecv = GetDarwinSysCtlByName("hw.optional.arm.FEAT_ECV");
 
   return info;
 }
diff --git a/test/cpuinfo_aarch64_test.cc b/test/cpuinfo_aarch64_test.cc
index e191a145..bddca7e0 100644
--- a/test/cpuinfo_aarch64_test.cc
+++ b/test/cpuinfo_aarch64_test.cc
@@ -373,6 +373,7 @@ TEST_F(CpuidAarch64Test, FromDarwinSysctlFromName) {
   EXPECT_FALSE(info.features.sb);
   EXPECT_FALSE(info.features.paca);
   EXPECT_FALSE(info.features.pacg);
+  EXPECT_FALSE(info.features.ecv);
 }
 #elif defined(CPU_FEATURES_OS_WINDOWS)
 TEST_F(CpuidAarch64Test, WINDOWS_AARCH64_RPI4) {