Curve25519 x64 ASM: nct invert needs vzeroupper

SparkiDev · SparkiDev · commit ffe304643e83 · 2026-01-13T08:38:23.000+10:00
When ymm registers used, vzeroupper is required at end.
diff --git a/wolfcrypt/src/fe_x25519_asm.S b/wolfcrypt/src/fe_x25519_asm.S
@@ -21779,6 +21779,7 @@ L__mod_inv_avx2__3_no_add_prime:
         movq	%r8, 8(%rdi)
         movq	%r10, 16(%rdi)
         movq	%r12, 24(%rdi)
+        vzeroupper
         popq	%rbx
         popq	%r15
         popq	%r14
