OpenBLAS/kernel/power/lsame.S

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#define ASSEMBLER
#include "common.h"

	PROLOGUE
	PROFCODE

	lbz	r3,  0(r3)
	lbz	r4,  0(r4)

	cmplwi	cr0, r3, 96
	cmplwi	cr6, r4, 96
	addi	r0, r3, -32
	addi	r11,r4, -32

	ble-	cr0, LL(2)
#ifdef __64BIT__
	rldicl	r3, r0, 0, 56
#else
	rlwinm  r3, r0, 0, 0xff
#endif
LL(2):
	ble-	cr6, LL(3)
#ifdef __64BIT__
	rldicl	r4, r11, 0, 56
#else
	rlwinm  r4, r11, 0, 0xff
#endif
LL(3):
	xor	r3, r3, r4
	subfic	r0, r3, 0
	adde	r3, r0, r3
	blr

	EPILOGUE