From ca5eb817689340c9e11f21f75b2eede73622ad2e Mon Sep 17 00:00:00 2001
From: jsing <>
Date: Mon, 27 Jan 2025 14:02:32 +0000
Subject: Mop up RC4_INDEX.

The RC4_INDEX define switches between base pointer indexing and per-byte
pointer increment. This supposedly made a huge difference to performance
on x86 at some point, however compilers have improved somewhat since then.
There is no change (or effectively no change) in generated assembly on
a the majority of LLVM platforms and even when there is some change
(e.g. aarch64), there is no noticable performance difference.

Simplify the (still messy) macros/code and mop up RC4_INDEX.

ok tb@
---
 src/lib/libcrypto/arch/arm/opensslconf.h | 7 -------
 1 file changed, 7 deletions(-)

(limited to 'src/lib/libcrypto/arch/arm/opensslconf.h')

diff --git a/src/lib/libcrypto/arch/arm/opensslconf.h b/src/lib/libcrypto/arch/arm/opensslconf.h
index 3413abb672..98dcfee3a1 100644
--- a/src/lib/libcrypto/arch/arm/opensslconf.h
+++ b/src/lib/libcrypto/arch/arm/opensslconf.h
@@ -65,13 +65,6 @@
 #undef EIGHT_BIT
 #endif
 
-#if defined(HEADER_RC4_LOCL_H) && !defined(CONFIG_HEADER_RC4_LOCL_H)
-#define CONFIG_HEADER_RC4_LOCL_H
-/* if this is defined data[i] is used instead of *data, this is a %20
- * speedup on x86 */
-#define RC4_INDEX
-#endif
-
 #if defined(HEADER_BF_LOCL_H) && !defined(CONFIG_HEADER_BF_LOCL_H)
 #define CONFIG_HEADER_BF_LOCL_H
 #undef BF_PTR
-- 
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