aes/asm/aesp8-ppc.pl: improve [backward] portability.
authorAndy Polyakov <appro@openssl.org>
Tue, 8 Nov 2016 19:25:09 +0000 (20:25 +0100)
committerMatt Caswell <matt@openssl.org>
Thu, 10 Nov 2016 12:58:35 +0000 (12:58 +0000)
Some of stone-age assembler can't cope with r0 in address. It's actually
sensible thing to do, because r0 is shunted to 0 in address arithmetic
and by refusing r0 assembler effectively makes you understand that.

Reviewed-by: Rich Salz <rsalz@openssl.org>
crypto/aes/asm/aesp8-ppc.pl

index 0497953..7463df6 100755 (executable)
@@ -3011,7 +3011,7 @@ _aesp8_xts_enc5x:
         vxor           $twk0,$twk0,v31
 
        vcipher         $out0,$out0,v26
-       lvsr            $inpperm,r0,$taillen    # $in5 is no more
+       lvsr            $inpperm,0,$taillen     # $in5 is no more
        vcipher         $out1,$out1,v26
        vcipher         $out2,$out2,v26
        vcipher         $out3,$out3,v26