jit/metainterp/test/test_warmspot.py::TestLLWarmspot::()::test_loop_header
self = <rpython.jit.metainterp.test.test_warmspot.TestLLWarmspot instance at 0xf539d8ac>
def test_loop_header(self):
# artificial test: we enter into the JIT only when can_enter_jit()
# is seen, but we close a loop in the JIT much more quickly
# because of loop_header().
mydriver = JitDriver(reds = ['n', 'm'], greens = [])
def f(m):
n = 0
while True:
mydriver.jit_merge_point(n=n, m=m)
if n > m:
m -= 1
if m < 0:
return n
n = 0
mydriver.can_enter_jit(n=n, m=m)
else:
n += 1
mydriver.loop_header()
assert f(15) == 1
res = self.meta_interp(f, [15], backendopt=True)
assert res == 1
> self.check_resops(int_add=2) # I get 13 without the loop_header()
jit/metainterp/test/test_warmspot.py:189:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
jit/metainterp/test/support.py:199: in check_resops
get_stats().check_resops(expected=expected, **check)
jit/metainterp/history.py:969: in check_resops
return self._check_insns(insns, expected, check)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <rpython.jit.metainterp.history.Stats object at 0xf53b3bec>
insns = {'debug_merge_point': 5, 'guard_false': 3, 'guard_true': 1, 'int_add': 3, ...}
expected = None, check = {'int_add': 2}
def _check_insns(self, insns, expected, check):
if expected is not None:
insns.pop('debug_merge_point', None)
insns.pop('enter_portal_frame', None)
insns.pop('leave_portal_frame', None)
insns.pop('label', None)
assert insns == expected
for insn, expected_count in check.items():
getattr(rop, insn.upper()) # fails if 'rop.INSN' does not exist
found = insns.get(insn, 0)
assert found == expected_count, (
> "found %d %r, expected %d" % (found, insn, expected_count))
E AssertionError: found 3 'int_add', expected 2
jit/metainterp/history.py:982: AssertionError
---------- Captured stdout call ----------
bh: goto_if_not_int_gt [13, 12, 43, 21] -> 21
bh: int_sub [12, 1] -> 11
bh: live [26] -> 28
bh: goto_if_not_int_lt [11, 0, 35, 33] -> 35
bh: loop_header [0]
bh: int_copy [0] -> 0
bh: goto [0] -> 0
bh: live [1] -> 3
bh: jit_merge_point [<BHInterp <JitCode 'f'>>, 0, [], [], [], [0, 11], [], []] -> ContinueRunningNormally!
bh: goto_if_not_int_gt [1, 0, 43, 21] -> 21
bh: int_sub [0, 1] -> -1
bh: live [26] -> 28
bh: goto_if_not_int_lt [-1, 0, 35, 33] -> 33
bh: int_return [<BHInterp <JitCode 'f'>>, 1] -> LeaveFrame!
~~~ return value: 1
---------- Captured stderr call ----------
[rtyper] -=- specialized 8 blocks -=-
[rtyper] -=- specialized 4 more blocks -=-
[rtyper] -=- specialized 2 more blocks -=-
[rtyper] -=- specialized 7 more blocks -=-
[rtyper] -=- specialized 6 more blocks -=-
[rtyper] -=- specialized 17 more blocks -=-
[rtyper] -=- specialized 2 more blocks -=-
[backendopt:inlining] phase with threshold factor: 32.4
[backendopt:inlining] heuristic: rpython.translator.backendopt.inline.inlining_heuristic
[backendopt:inlining] inlined 1 callsites.
[backendopt:malloc] starting malloc removal
[backendopt:malloc] removed 0 simple mallocs in total
[backendopt:mergeifblocks] starting to merge if blocks
[rtyper] -=- specialized 3 more blocks -=-
[jitcodewriter:info] making JitCodes...
[jitcodewriter:info] There are 1 JitCode instances.
[jitcodewriter:info] There are 3 -live- ops. Size of liveness is 4 bytes
[jitcodewriter] compute_bitstrings:
[jitcodewriter] 0 effectinfos:
[jitcodewriter] 0 descrs for arrays
[jitcodewriter] 0 descrs for fields
[jitcodewriter] 0 descrs for interiorfields
[c5fd60494ca2b00] {jit-tracing
JIT starting (llgraph)
(jitdriver: no get_printable_location)
(jitdriver: no get_printable_location)
[c5fd60494ddf900] {jit-trace-done
trace length: 38
number operations: 8
total snapshots: 2
snapshot data: 24
snapshot array data: 14
bigint consts: 0 0
float consts: 0 0
ref consts: 0 0 1
descrs: 1
[c5fd60494e0eb00] jit-trace-done}
[c5fd60494e46380] {jit-log-noopt
# Traced loop or bridge with 7 ops
[i0, i1]
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
i2 = int_gt(i0, i1)
guard_false(i2)
i4 = int_add(i0, 1)
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
guard_future_condition()
jump(i4, i1, descr=<Loop-1>)
[c5fd60494eaed80] jit-log-noopt}
[c5fd60494ebfb00] {jit-optimize
[c5fd60494ee3900] {jit-log-intbounds
[i0, i1]
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
i2 = int_gt(i0, i1)
guard_false(i2, descr=<rpython.jit.metainterp.compile.ResumeGuardDescr object at 0xf53692ec>) [i0, i1]
i4 = int_add(i0, 1)
# i4 -> (?) IntBound.unbounded()
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
[c5fd6049527ae80] jit-log-intbounds}
[c5fd604952f6300] {jit-log-exported-state
[i5, i6]
INP(i5 = int_add(i7, 1/ci))
INP(i6)
[c5fd60495324300] jit-log-exported-state}
[c5fd60495335480] jit-optimize}
[c5fd6049534f500] {jit-optimize
[c5fd6049545ea80] {jit-log-intbounds
[i0, i1]
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
i4 = int_gt(i2, i3)
guard_false(i4, descr=<rpython.jit.metainterp.compile.ResumeGuardDescr object at 0xf5369bcc>) [i2, i3]
i6 = int_add(i2, 1)
# i6 -> (?) IntBound.unbounded()
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
[c5fd6049594f700] jit-log-intbounds}
jump(i6, i3, descr=TargetToken(-180948596))
[c5fd60495b1df00] jit-optimize}
[c5fd60495b35280] {jit-log-short-preamble
[]
label(i8, i9)
jump()
[c5fd60495b5cb00] jit-log-short-preamble}
[c5fd60495bab880] {jit-backend
[c5fd60495bcc680] {jit-log-compiling-loop
[i7, i6]
label(i7, i6, descr=TargetToken(-180972596))
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
i10 = int_gt(i7, i6)
guard_false(i10, descr=<Guard0xf53692ec>) [i7, i6]
i5 = int_add(i7, 1)
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
label(i5, i6, descr=TargetToken(-180948596))
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
i12 = int_gt(i5, i6)
guard_false(i12, descr=<Guard0xf5369bcc>) [i5, i6]
i14 = int_add(i5, 1)
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
jump(i14, i6, descr=TargetToken(-180948596))
[c5fd60495c5bb80] jit-log-compiling-loop}
[c5fd60495c76500] {jit-mem-looptoken-alloc
allocating Loop # 1
[c5fd60495c89980] jit-mem-looptoken-alloc}
[c5fd60495cd2780] jit-backend}
compiled new loop
[c5fd60495ce6d80] {jit-log-opt-loop
# Loop 1 ((jitdriver: no get_printable_location)) : loop with 13 ops
[i0, i1]
label(i0, i1, descr=TargetToken(-180972596))
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
i2 = int_gt(i0, i1)
guard_false(i2, descr=<Guard0xf53692ec>) [i0, i1]
i4 = int_add(i0, 1)
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
label(i4, i1, descr=TargetToken(-180948596))
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
i5 = int_gt(i4, i1)
guard_false(i5, descr=<Guard0xf5369bcc>) [i4, i1]
i7 = int_add(i4, 1)
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
jump(i7, i1, descr=TargetToken(-180948596))
[c5fd60495d88f80] jit-log-opt-loop}
ContinueRunningNormally
[c5fd604960c1500] jit-tracing}
[c5fd60496375700] {jit-tracing
(jitdriver: no get_printable_location)
[c5fd6049654d200] {jit-trace-done
trace length: 51
number operations: 11
total snapshots: 3
snapshot data: 36
snapshot array data: 20
bigint consts: 0 0
float consts: 0 0
ref consts: 0 0 1
descrs: 2
[c5fd6049657a680] jit-trace-done}
[c5fd60496591600] {jit-log-noopt
# Traced loop or bridge with 9 ops
[i0, i1]
i2 = int_gt(i0, i1)
guard_true(i2)
i4 = int_sub(i1, 1)
i6 = int_lt(i4, 0)
guard_false(i6)
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
i8 = same_as_i(0)
guard_future_condition()
jump(i8, i4, descr=<Loop1>)
[c5fd60496601e80] jit-log-noopt}
[c5fd60496612280] {jit-optimize
[c5fd604966a8280] {jit-log-intbounds
[i0, i1]
i2 = int_gt(i0, i1)
guard_true(i2, descr=<rpython.jit.metainterp.compile.ResumeGuardDescr object at 0xf537394c>) [i0, i1]
# i1: (? <= MAXINT - 1) IntBound(MININT, MAXINT - 1)
i4 = int_add(i1, -1)
i6 = int_lt(i4, 0)
guard_false(i6, descr=<rpython.jit.metainterp.compile.ResumeGuardCopiedDescr object at 0xf5373cec>) [i0, i1]
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
[c5fd60496c00180] jit-log-intbounds}
# i4: (0 <= 0b0?...?) IntBound.nonnegative()
jump(0, i4, descr=TargetToken(-180948596))
[c5fd60496d2da00] jit-optimize}
[c5fd60496d47b80] {jit-backend
[c5fd60496d52f80] {jit-log-compiling-bridge
[i9, i10]
i11 = int_gt(i9, i10)
guard_true(i11, descr=<Guard0xf537394c>) [i9, i10]
i13 = int_add(i10, -1)
i15 = int_lt(i13, 0)
guard_false(i15, descr=<Guard0xf5373cec>) [i9, i10]
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
jump(0, i13, descr=TargetToken(-180948596))
[c5fd60496d8c180] jit-log-compiling-bridge}
[c5fd60496d9ea80] {jit-mem-looptoken-alloc
allocating Bridge # 1 of Loop # 1
[c5fd60496dadb00] jit-mem-looptoken-alloc}
[c5fd60496de8980] jit-backend}
compiled new bridge
[c5fd60496df9580] {jit-log-opt-bridge
# bridge out of Guard 0xf5369bcc with 7 ops
[i9, i10]
i11 = int_gt(i9, i10)
guard_true(i11, descr=<Guard0xf537394c>) [i9, i10]
i13 = int_add(i10, -1)
i15 = int_lt(i13, 0)
guard_false(i15, descr=<Guard0xf5373cec>) [i9, i10]
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
jump(0, i13, descr=TargetToken(-180948596))
[c5fd60496e38380] jit-log-opt-bridge}
[c5fd60496e43100] {jit-log-opt-bridge
# bridge out of Guard 0xf5369bcc with 7 ops
[i9, i10]
i11 = int_gt(i9, i10)
guard_true(i11, descr=<Guard0xf537394c>) [i9, i10]
i13 = int_add(i10, -1)
i15 = int_lt(i13, 0)
guard_false(i15, descr=<Guard0xf5373cec>) [i9, i10]
debug_merge_point(0, 0, '(jitdriver: no get_printable_location)')
jump(0, i13, descr=TargetToken(-180948596))
[c5fd60496e7ec00] jit-log-opt-bridge}
DoneWithThisFrameInt
[c5fd60497553f00] jit-tracing}
builder: rpython-linux-x86-32 build #857+
test: jit/metainterp/test/test_warmspot.py::TestLLWarmspot::()::test_loop_header