Breaking Change: merge BoringSSL branch into master

third_party/boringssl/win-x86_64/crypto/rand/rdrand-x86_64.asm

Index: third_party/boringssl/win-x86_64/crypto/rand/rdrand-x86_64.asm
diff --git a/third_party/boringssl/win-x86_64/crypto/rand/rdrand-x86_64.asm b/third_party/boringssl/win-x86_64/crypto/rand/rdrand-x86_64.asm
new file mode 100644
index 0000000000000000000000000000000000000000..4c03791b48efed0eda7140d590c3da8faeeb9ec9
--- /dev/null
+++ b/third_party/boringssl/win-x86_64/crypto/rand/rdrand-x86_64.asm
@@ -0,0 +1,70 @@
+default	rel
+%define XMMWORD
+%define YMMWORD
+%define ZMMWORD
+section	.text code align=64
+
+
+
+
+
+global	CRYPTO_rdrand
+
+ALIGN	16
+CRYPTO_rdrand:
+	mov	QWORD[8+rsp],rdi	;WIN64 prologue
+	mov	QWORD[16+rsp],rsi
+	mov	rax,rsp
+$L$SEH_begin_CRYPTO_rdrand:
+	mov	rdi,rcx
+
+
+	xor	rax,rax
+
+
+DB	0x48,0x0f,0xc7,0xf1
+
+	adc	rax,rax
+	mov	QWORD[rdi],rcx
+	mov	rdi,QWORD[8+rsp]	;WIN64 epilogue
+	mov	rsi,QWORD[16+rsp]
+	DB	0F3h,0C3h		;repret
+
+
+
+
+
+global	CRYPTO_rdrand_multiple8_buf
+
+ALIGN	16
+CRYPTO_rdrand_multiple8_buf:
+	mov	QWORD[8+rsp],rdi	;WIN64 prologue
+	mov	QWORD[16+rsp],rsi
+	mov	rax,rsp
+$L$SEH_begin_CRYPTO_rdrand_multiple8_buf:
+	mov	rdi,rcx
+	mov	rsi,rdx
+
+
+	test	rsi,rsi
+	jz	NEAR $L$out
+	mov	rdx,8
+$L$loop:
+
+
+DB	0x48,0x0f,0xc7,0xf1
+	jnc	NEAR $L$err
+	mov	QWORD[rdi],rcx
+	add	rdi,rdx
+	sub	rsi,rdx
+	jnz	NEAR $L$loop
+$L$out:
+	mov	rax,1
+	mov	rdi,QWORD[8+rsp]	;WIN64 epilogue
+	mov	rsi,QWORD[16+rsp]
+	DB	0F3h,0C3h		;repret
+$L$err:
+	xor	rax,rax
+	mov	rdi,QWORD[8+rsp]	;WIN64 epilogue
+	mov	rsi,QWORD[16+rsp]
+	DB	0F3h,0C3h		;repret