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# sh testcase for cmp/str $rm, $rn -*- Asm -*-
# mach: all
# as: -isa=shcompact
# ld: -m shelf32

        .include "compact/testutils.inc"

.macro rot8
        rotr r0
        rotr r0
        rotr r0
        rotr r0
        rotr r0
        rotr r0
        rotr r0
        rotr r0
.endm

        start

# Use multiple "wrong" labels because this program is quite long. It's
# likely that some instructions will be too far away from the branch
# target to use PC-relative branches.
        
match0:
        # No bytes matching.
        mov #1, r0
        neg r0, r0
        xor #170, r0
        rot8
        xor #170, r0
        rot8
        xor #170, r0
        rot8
        xor #170, r0
        rot8
        mov r0, r1
        mov #1, r0
        neg r0, r0
        xor #85, r0
        rot8
        xor #85, r0
        rot8
        xor #85, r0
        rot8
        xor #85, r0
        rot8
        cmp/str r0, r1
        bt wrong0

        bra match1
        nop
wrong0:
        fail

match1:
        # One byte matching.
        mov #1, r0
        neg r0, r0
        xor #170, r0
        rot8
        xor #170, r0
        rot8
        xor #170, r0
        rot8
        mov r0, r1
        mov #1, r0
        neg r0, r0
        xor #85, r0
        rot8
        xor #85, r0
        rot8
        xor #85, r0
        rot8
        cmp/str r0, r1
        bf wrong1

        bra match2
        nop
wrong1:
        fail

match2:
        # Two bytes matching.
        mov #1, r0
        neg r0, r0
        xor #170, r0
        rot8
        xor #170, r0
        rot8
        mov r0, r1
        mov #1, r0
        neg r0, r0
        xor #85, r0
        rot8
        xor #85, r0
        rot8
        cmp/str r0, r1
        bf wrong2

        bra match3
        nop
wrong2:
        fail
        
byte0:
match3:
        # One byte matching.
        # This is also the test for byte 0.
        mov #85, r0
        mov #85, r1
        cmp/str r0, r1
        bf wrong3

byte1:
        # Match in byte position 1.
        mov #85, r0
        shll8 r0
        mov #85, r1
        shll8 r1
        cmp/str r0, r1
        bf wrong3

byte2:
        # Match in byte position 2.
        mov #85, r0
        shll16 r0
        mov #85, r1
        shll16 r1
        cmp/str r0, r1
        bf wrong3

byte3:
        # Match in byte position 3.
        mov #85, r0
        shll16 r0
        shll8 r0
        mov #85, r1
        shll16 r1
        shll8 r1
        cmp/str r0, r1
        bf wrong3

okay:
        pass
wrong3:
        fail