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Commit 87a156fb authored May 26, 2016 by Anton Blanchard Committed by Michael Ellerman Jun 14, 2016

powerpc: Align hot loops of some string functions



Align the hot loops in our assembly implementation of strncpy(),
strncmp() and memchr().

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent 3ece1663

arch/powerpc/lib/string.S

+3 −0

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@ _GLOBAL(strncpy)
		mtctr r5
		addi r6,r3,-1
		addi r4,r4,-1
		.balign 16
		1: lbzu r0,1(r4)
		cmpwi 0,r0,0
		stbu r0,1(r6)
		@@ -42,6 +43,7 @@ _GLOBAL(strncmp)
		mtctr r5
		addi r5,r3,-1
		addi r4,r4,-1
		.balign 16
		1: lbzu r3,1(r5)
		cmpwi 1,r3,0
		lbzu r0,1(r4)
		@@ -73,6 +75,7 @@ _GLOBAL(memchr)
		beq- 2f
		mtctr r5
		addi r3,r3,-1
		.balign 16
		1: lbzu r0,1(r3)
		cmpw 0,r0,r4
		bdnzf 2,1b