From: Mark Wooding <mdw@distorted.org.uk>
Date: Wed, 18 Sep 2019 17:24:49 +0000 (+0100)
Subject: symm/rijndael-arm64-crypto.S: Fix bogus element-to-GP move.
X-Git-Tag: 2.4.3~4
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/catacomb/commitdiff_plain/354ea7a4eecb1c4046bebacc19cad55a5b571ec0

symm/rijndael-arm64-crypto.S: Fix bogus element-to-GP move.

Spotted by Clang's assembler.  GAS is obviously too lenient.

(cherry picked from commit cead42fc5cf5ff8c1c13f123e4c002077b42f6cd)
---

diff --git a/symm/rijndael-arm64-crypto.S b/symm/rijndael-arm64-crypto.S
index 8739c193..9f68ae84 100644
--- a/symm/rijndael-arm64-crypto.S
+++ b/symm/rijndael-arm64-crypto.S
@@ -108,7 +108,7 @@ FUNC(rijndael_setup_arm64_crypto)
 	// the byte substitution.
 	dup	v0.4s, w14
 	aese	v0.16b, v1.16b		// effectively, just SubBytes
-	mov	w14, v0.4s[0]
+	mov	w14, v0.s[0]
 	b	2f
 
 	// First word of the cycle.  Byte substitution, rotation, and round
@@ -116,7 +116,7 @@ FUNC(rijndael_setup_arm64_crypto)
 1:	ldrb	w13, [x5], #1		// next round constant
 	dup	v0.4s, w14
 	aese	v0.16b, v1.16b		// effectively, just SubBytes
-	mov	w14, v0.4s[0]
+	mov	w14, v0.s[0]
 	eor	w14, w13, w14, ror #8
 
 	// Common ending: mix in the word from the previous cycle and store.