Commit 1a661908 authored by Andy Polyakov's avatar Andy Polyakov
Browse files

ec/asm/ecp_nistz256-sparcv9.pl: get corner logic right. 



RT#4284

Reviewed-by: default avatarRich Salz <rsalz@openssl.org>
parent b5640316

crypto/ec/asm/ecp_nistz256-sparcv9.pl

+12 −3
Original line number Diff line number Diff line
@@ -722,6 +722,7 @@ ecp_nistz256_point_double: 
	mov	$rp,$rp_real

	mov	$ap,$ap_real



.Lpoint_double_shortcut:

	ld	[$ap+32],@acc[0]

	ld	[$ap+32+4],@acc[1]

	ld	[$ap+32+8],@acc[2]
@@ -994,7 +995,7 @@ ecp_nistz256_point_add: 
	be,pt	%icc,.Ladd_proceed	! (in1infty || in2infty)?

	nop

	andcc	$t2,$t2,%g0

	be,pt	%icc,.Ladd_proceed	! is_equal(S1,S2)?

	be,pt	%icc,.Ladd_double	! is_equal(S1,S2)?

	nop



	ldx	[%fp+STACK_BIAS-8],$rp
@@ -1025,6 +1026,13 @@ ecp_nistz256_point_add: 
	b	.Ladd_done

	nop



.align	16

.Ladd_double:

	ldx	[%fp+STACK_BIAS-8],$rp_real

	mov	$ap_real,$ap

	b	.Lpoint_double_shortcut

	add	%sp,32*(12-4)+32,%sp	! difference in frame sizes



.align	16

.Ladd_proceed:

	add	%sp,LOCALS+$R,$bp
@@ -2016,6 +2024,7 @@ ecp_nistz256_point_double_vis3: 
	save	%sp,-STACK64_FRAME-32*10,%sp



	mov	$rp,$rp_real

.Ldouble_shortcut_vis3:

	mov	-1,$minus1

	mov	-2,$poly3

	sllx	$minus1,32,$poly1		! 0xFFFFFFFF00000000
@@ -2536,8 +2545,8 @@ ecp_nistz256_point_add_vis3: 
	be,pt	%xcc,.Ladd_proceed_vis3		! (in1infty || in2infty)?

	nop

	andcc	$t2,$t2,%g0

	be,pt	%xcc,.Ladd_proceed_vis3		! is_equal(S1,S2)?

	nop

	be,a,pt	%xcc,.Ldouble_shortcut_vis3	! is_equal(S1,S2)?

	add	%sp,32*(12-10)+32,%sp		! difference in frame sizes



	st	%g0,[$rp_real]

	st	%g0,[$rp_real+4]