Commit 10f27971 authored Jun 07, 2018 by Andy Polyakov

chacha/asm/chacha-ppc.pl: fix big-endian build.



It's kind of a "brown-bag" bug, as I did recognize the problem and
verified an ad-hoc solution, but failed to follow up with cross-checks
prior filing previous merge request.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6435)

parent bb5f281a

crypto/chacha/asm/chacha-ppc.pl

+6 −5

Original line number	Diff line number	Diff line
		@@ -438,9 +438,9 @@ my ($a,$b,$c,$d)=@_;
		"&vxor ('$b','$b','$c')",
		"&vrlw ('$b','$b','$seven')",

		"&vsldoi ('$c','$c','$c',8)",
		"&vsldoi ('$b','$b','$b',$odd?4:12)",
		"&vsldoi ('$d','$d','$d',$odd?12:4)"
		"&vrldoi ('$c','$c',8)",
		"&vrldoi ('$b','$b',$odd?4:12)",
		"&vrldoi ('$d','$d',$odd?12:4)"
		);
		}

		@@ -1334,11 +1334,12 @@ foreach (split("\n",$code)) {
		s/\?lvsr/lvsl/ or
		s/\?lvsl/lvsr/ or
		s/\?(vperm\s+v[0-9]+,\s)(v[0-9]+,\s)(v[0-9]+,\s*)(v[0-9]+)/$1$3$2$4/ or
		s/(vsldoi\s+v[0-9]+,\s)(v[0-9]+,)\s(v[0-9]+,\s*)([0-9]+)/$1$3$2 16-$4/;
		s/vrldoi(\s+v[0-9]+,\s)(v[0-9]+,)\s([0-9]+)/vsldoi$1$2$2 16-$3/;
		} else { # little-endian
		s/le\?// or
		s/be\?/#be#/ or
		s/\?([a-z]+)/$1/;
		s/\?([a-z]+)/$1/ or
		s/vrldoi(\s+v[0-9]+,\s)(v[0-9]+,)\s([0-9]+)/vsldoi$1$2$2 $3/;
		}

		print $_,"\n";