qemu-e2k/tests/tcg/xtensa/test_loop.S

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#include "macros.inc"
test_suite loop
#if XCHAL_HAVE_LOOPS
test loop
movi a2, 0
movi a3, 5
loop a3, 1f
addi a2, a2, 1
1:
assert eqi, a2, 5
test_end
test loop0
movi a2, 0
loop a2, 1f
rsr a2, lcount
assert eqi, a2, -1
j 1f
1:
test_end
test loop_jump
movi a2, 0
movi a3, 5
loop a3, 1f
addi a2, a2, 1
j 1f
1:
assert eqi, a2, 1
test_end
test loop_branch
movi a2, 0
movi a3, 5
loop a3, 1f
addi a2, a2, 1
beqi a2, 3, 1f
1:
assert eqi, a2, 3
test_end
test loop_manual
movi a2, 0
movi a3, 5
movi a4, 1f
movi a5, 2f
wsr a3, lcount
wsr a4, lbeg
wsr a5, lend
isync
j 1f
.align 4
1:
addi a2, a2, 1
2:
assert eqi, a2, 6
test_end
test loop_excm
movi a2, 0
movi a3, 5
rsr a4, ps
movi a5, 0x10
or a4, a4, a5
wsr a4, ps
isync
loop a3, 1f
addi a2, a2, 1
1:
xor a4, a4, a5
isync
wsr a4, ps
assert eqi, a2, 1
test_end
test lbeg_invalidation
movi a2, 0
movi a3, 1
movi a4, 1f
movi a5, 3f
wsr a3, lcount
wsr a4, lbeg
wsr a5, lend
isync
j 1f
.align 4
1:
addi a2, a2, 1
j 2f
.align 4
2:
addi a2, a2, 2
movi a3, 2b
wsr a3, lbeg
isync
nop
3:
assert eqi, a2, 5
test_end
test lend_invalidation
movi a2, 0
movi a3, 5
movi a4, 1f
movi a5, 2f
wsr a3, lcount
wsr a4, lbeg
wsr a5, lend
isync
j 1f
.align 4
1:
addi a2, a2, 1
2:
beqi a3, 3, 1f
assert eqi, a2, 6
movi a3, 3
wsr a3, lcount
wsr a4, lend
isync
j 1b
1:
assert eqi, a2, 7
test_end
test loopnez
movi a2, 0
movi a3, 5
loopnez a3, 1f
addi a2, a2, 1
1:
assert eqi, a2, 5
movi a2, 0
movi a3, 0
loopnez a3, 1f
test_fail
1:
test_end
test loopgtz
movi a2, 0
movi a3, 5
loopgtz a3, 1f
addi a2, a2, 1
1:
assert eqi, a2, 5
movi a2, 0
movi a3, 0
loopgtz a3, 1f
test_fail
1:
movi a2, 0
movi a3, 0x80000000
loopgtz a3, 1f
test_fail
1:
test_end
#endif
test_suite_end