commit 6ac5d32a13e29c8a16545391dac5a91dd49a9d2e
author Evgenii Kliuchnikov <eustas@google.com> Fri Dec 29 07:19:22 2023 -0800
committer Copybara-Service <copybara-worker@google.com> Fri Dec 29 07:21:16 2023 -0800
tree 1383c3e67bbc6f21e3d7bcd3e754dec2a9bbfba4
parent fef82ea10435abb1500b615b1b2c6175d429ec6c

fix build for Microsoft-designed ARM64 ABI

PiperOrigin-RevId: 594453949

c/common/platform.h

diff --git a/c/common/platform.h b/c/common/platform.h
index 7406f3f..f66a6cb 100644
--- a/c/common/platform.h
+++ b/c/common/platform.h
@@ -475,7 +475,7 @@
     BROTLI_INTEL_VERSION_CHECK(16, 0, 0)
 #define BROTLI_TZCNT64 __builtin_ctzll
 #elif BROTLI_MSVC_VERSION_CHECK(18, 0, 0)
-#if defined(BROTLI_TARGET_X64)
+#if defined(BROTLI_TARGET_X64) && !defined(_M_ARM64EC)
 #define BROTLI_TZCNT64 _tzcnt_u64
 #else /* BROTLI_TARGET_X64 */
 static BROTLI_INLINE uint32_t BrotliBsf64Msvc(uint64_t x) {