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Rename memory to heap.

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This commit is contained in:
cfreksen 2017-10-29 21:21:25 +01:00
parent 6b6dd9cf68
commit 46f5bf9fc7
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GPG Key ID: EAC13EE101008978
1 changed files with 18 additions and 18 deletions
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32
stepper.py
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@ -23,10 +23,10 @@ class Garbage(Enum):
GARBAGE = '<<Unitialized memory>>'
def step(insns, terminator, blocks, stack_frames, ssa_env, global_env, memory,
def step(insns, terminator, blocks, stack_frames, ssa_env, global_env, heap,
tdecs, fdecs, call_res):
if len(insns) == 0:
return terminate(terminator, blocks, stack_frames, ssa_env, global_env, memory,
return terminate(terminator, blocks, stack_frames, ssa_env, global_env, heap,
call_res)
ssa_target, next_insn = insns[0]
insns_rest = insns[1:]
@ -56,9 +56,9 @@ def step(insns, terminator, blocks, stack_frames, ssa_env, global_env, memory,
print('alloca {} --> allocating {} cells'
.format(ll.ty2s(base_ty), size))
ptr = len(memory)
ptr = len(heap)
for i in range(max(size, 1)):
memory.append(Garbage.GARBAGE)
heap.append(Garbage.GARBAGE)
res = ptr
elif isinstance(next_insn, ll.Load):
@ -83,7 +83,7 @@ def step(insns, terminator, blocks, stack_frames, ssa_env, global_env, memory,
if not isinstance(callee, ll.Gid):
err('Cannot call anything but global identifiers: {}'
.format(ll.oper2s(callee)))
return insns_rest, terminator, blocks, stack_frames, ssa_env, memory, call_res
return insns_rest, terminator, blocks, stack_frames, ssa_env, heap, call_res
arguments_v = [eval_oper(oper, ssa_env, global_env)
for ty, oper in arguments]
@ -93,7 +93,7 @@ def step(insns, terminator, blocks, stack_frames, ssa_env, global_env, memory,
except KeyError:
err('Could not find function {} in environment:\n{}'
.format(callee.val, fdecs.keys()))
return insns_rest, terminator, blocks, stack_frames, ssa_env, memory, call_res
return insns_rest, terminator, blocks, stack_frames, ssa_env, heap, call_res
parameters = function.parameters
print('call @{} ({})'
@ -105,10 +105,10 @@ def step(insns, terminator, blocks, stack_frames, ssa_env, global_env, memory,
child_blocks = function.body.named_blocks
child_stack_frames = [(insns_rest, terminator, blocks, ssa_env)] + stack_frames
child_ssa_env = {par[1]: arg for par, arg in zip(parameters, arguments_v)}
child_memory = memory
child_heap = heap
child_call_res = [ssa_target] + call_res
return (child_insns, child_terminator, child_blocks, child_stack_frames,
child_ssa_env, child_memory, child_call_res)
child_ssa_env, child_heap, child_call_res)
elif isinstance(next_insn, ll.Bitcast):
oper = next_insn.oper
@ -161,10 +161,10 @@ def step(insns, terminator, blocks, stack_frames, ssa_env, global_env, memory,
.format(ssa_target, res))
ssa_env[ssa_target] = res
return insns_rest, terminator, blocks, stack_frames, ssa_env, memory, call_res
return insns_rest, terminator, blocks, stack_frames, ssa_env, heap, call_res
def terminate(terminator, blocks, stack_frames, ssa_env, global_env, memory, call_res):
def terminate(terminator, blocks, stack_frames, ssa_env, global_env, heap, call_res):
def clear_block_from_ssa_env(insns, ssa_env):
for (id, insn) in insns:
if id is not None and id in ssa_env:
@ -197,7 +197,7 @@ def terminate(terminator, blocks, stack_frames, ssa_env, global_env, memory, cal
new_stack_frames = stack_frames[1:]
new_call_res = call_res[1:]
return (new_insns, new_terminator, new_blocks, new_stack_frames,
new_ssa_env, memory, new_call_res)
new_ssa_env, heap, new_call_res)
elif isinstance(terminator, ll.Br):
label = terminator.label
next_block = blocks[label]
@ -214,7 +214,7 @@ def terminate(terminator, blocks, stack_frames, ssa_env, global_env, memory, cal
.format(label))
return (new_insns, new_terminator, blocks, stack_frames,
ssa_env, memory, call_res)
ssa_env, heap, call_res)
elif isinstance(terminator, ll.Cbr):
ty = terminator.ty
if ty != ll.SimpleType.I1:
@ -238,7 +238,7 @@ def terminate(terminator, blocks, stack_frames, ssa_env, global_env, memory, cal
.format(operand_v, label))
return (new_insns, new_terminator, blocks, stack_frames,
ssa_env, memory, call_res)
ssa_env, heap, call_res)
else:
err('Unknown LLVM terminator: {}'
.format(terminator))
@ -353,14 +353,14 @@ define i64 @tigermain (i64 %U_mainSL_8, i64 %U_mainDummy_9) {
stack_frames = []
ssa_env = {}
# TODO: memory structure has not been decided yet
memory = [None]
heap = [None]
call_res = []
while True:
(insns, terminator, blocks,
stack_frames, ssa_env, memory, call_res) = step(insns, terminator, blocks,
stack_frames, ssa_env, heap, call_res) = step(insns, terminator, blocks,
stack_frames, ssa_env,
global_env, memory, tdecs,
global_env, heap, tdecs,
fdecs, call_res)
if terminator is None: