commit be0928666614cf52510845ad1d3c44607b075f1d
author Dave Rodgman <dave.rodgman@arm.com> Tue Aug 08 10:42:55 2023 +0100
committer Dave Rodgman <dave.rodgman@arm.com> Mon Oct 16 09:25:59 2023 +0100
tree ea24b759402083ae7193d5c4a10bb60aca27bc47
parent ad71b6a834b136249a2aee549f4b85644b424377

Enable 8-byte fastpath in mbedtls_xor on ARM64 and ARM64EC

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>

library/common.h

diff --git a/library/common.h b/library/common.h
index 3c472c6..f838216 100644
--- a/library/common.h
+++ b/library/common.h
@@ -188,7 +188,8 @@
         uint8x16_t x = veorq_u8(v1, v2);
         vst1q_u8(r + i, x);
     }
-#elif defined(__amd64__) || defined(__x86_64__) || defined(__aarch64__)
+#elif defined(__amd64__) || defined(__x86_64__) || \
+    defined(__aarch64__) || defined(_M_ARM64) || defined(_M_ARM64EC)
     /* This codepath probably only makes sense on architectures with 64-bit registers */
     for (; (i + 8) <= n; i += 8) {
         uint64_t x = mbedtls_get_unaligned_uint64(a + i) ^ mbedtls_get_unaligned_uint64(b + i);
@@ -227,7 +228,8 @@
 {
     size_t i = 0;
 #if defined(MBEDTLS_EFFICIENT_UNALIGNED_ACCESS)
-#if defined(__amd64__) || defined(__x86_64__) || defined(__aarch64__)
+#if defined(__amd64__) || defined(__x86_64__) || \
+    defined(__aarch64__) || defined(_M_ARM64) || defined(_M_ARM64EC)
     /* This codepath probably only makes sense on architectures with 64-bit registers */
     for (; (i + 8) <= n; i += 8) {
         uint64_t x = mbedtls_get_unaligned_uint64(a + i) ^ mbedtls_get_unaligned_uint64(b + i);