496 lines
26 KiB
Python
496 lines
26 KiB
Python
from __future__ import annotations
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from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from lib.core.translator import Translator
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from lib.core.Handles.HandlesBase import BaseHandle
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import ast
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import llvmlite.ir as ir
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class ForHandle(BaseHandle):
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def _HandleForLlvm(self, Node):
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Gen = self.Trans.LlvmGen
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Gen._set_node_info(Node, "For")
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if not isinstance(Node.target, ast.Name):
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return
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TargetName = Node.target.id
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StartVal = None
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EndVal = None
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StepVal = None
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IsRange = False
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CondOp = '<'
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if isinstance(Node.iter, ast.Call):
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CallFunc = Node.iter.func
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if isinstance(CallFunc, ast.Name) and CallFunc.id == 'range':
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IsRange = True
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RangeArgs = Node.iter.args
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RangeEndArg = RangeArgs[1] if len(RangeArgs) >= 2 else RangeArgs[0] if len(RangeArgs) >= 1 else None
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OptimizedEnd = False
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if len(RangeArgs) >= 2 and isinstance(RangeEndArg, ast.BinOp):
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if isinstance(RangeEndArg.op, ast.Add):
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if (isinstance(RangeEndArg.right, ast.Constant) and RangeEndArg.right.value == 1):
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EndVal = self.HandleExprLlvm(RangeEndArg.left)
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CondOp = '<='
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OptimizedEnd = True
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elif (isinstance(RangeEndArg.left, ast.Constant) and RangeEndArg.left.value == 1):
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EndVal = self.HandleExprLlvm(RangeEndArg.right)
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CondOp = '<='
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OptimizedEnd = True
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elif isinstance(RangeEndArg.op, ast.Sub):
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if isinstance(RangeEndArg.right, ast.Constant) and RangeEndArg.right.value == 1:
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EndVal = self.HandleExprLlvm(RangeEndArg.left)
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CondOp = '<'
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OptimizedEnd = True
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if not OptimizedEnd:
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if len(RangeArgs) == 1:
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EndVal = self.HandleExprLlvm(RangeArgs[0])
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else:
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EndVal = self.HandleExprLlvm(RangeEndArg)
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if len(RangeArgs) == 1:
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StartVal = ir.Constant(ir.IntType(32), 0)
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elif len(RangeArgs) >= 2:
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StartVal = self.HandleExprLlvm(RangeArgs[0])
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if len(RangeArgs) >= 3:
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StepVal = self.HandleExprLlvm(RangeArgs[2])
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# Check if step is a negative constant — need to flip condition
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step_arg = RangeArgs[2]
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if isinstance(step_arg, ast.UnaryOp) and isinstance(step_arg.op, ast.USub):
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if isinstance(step_arg.operand, ast.Constant) and isinstance(step_arg.operand.value, (int, float)):
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if step_arg.operand.value > 0:
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CondOp = '>'
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elif isinstance(step_arg, ast.Constant) and isinstance(step_arg.value, (int, float)):
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if step_arg.value < 0:
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CondOp = '>'
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if not EndVal:
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return
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if not isinstance(EndVal.type, ir.IntType):
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if isinstance(EndVal.type, ir.PointerType) and isinstance(EndVal.type.pointee, ir.IntType):
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EndVal = Gen._load(EndVal, name="Load_end")
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else:
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EndVal = Gen.builder.ptrtoint(EndVal, ir.IntType(64), name="end")
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if StartVal and not isinstance(StartVal.type, ir.IntType):
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if isinstance(StartVal.type, ir.PointerType) and isinstance(StartVal.type.pointee, ir.IntType):
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StartVal = Gen._load(StartVal, name="Load_start")
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else:
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StartVal = Gen.builder.ptrtoint(StartVal, ir.IntType(64), name="start")
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else:
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StartVal = ir.Constant(ir.IntType(64), 0)
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if not StartVal:
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StartVal = ir.Constant(EndVal.type, 0)
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if StepVal is None:
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StepVal = ir.Constant(EndVal.type, 1)
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if not IsRange:
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IterClassName = self.Trans.ExprHandler._get_var_class(Node.iter, Gen)
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if not IterClassName and isinstance(Node.iter, ast.Call) and isinstance(Node.iter.func, ast.Name):
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IterClassName = Node.iter.func.id
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if IterClassName not in Gen.structs:
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IterClassName = None
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if IterClassName and Gen._has_function(f'{IterClassName}.__iter__') and Gen._has_function(f'{IterClassName}.__next__'):
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self._HandleForIterLlvm(Node, IterClassName)
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return
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IterVal = self.HandleExprLlvm(Node.iter)
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if not IterVal:
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return
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if isinstance(IterVal.type, ir.PointerType) and isinstance(IterVal.type.pointee, ir.IntType) and IterVal.type.pointee.width == 8:
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self._HandleForStrLlvm(Node, IterVal)
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return
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if isinstance(IterVal.type, ir.PointerType) and isinstance(IterVal.type.pointee, ir.ArrayType):
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self._HandleForListLlvm(Node, IterVal)
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return
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StartVal = ir.Constant(ir.IntType(32), 0)
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EndVal = IterVal
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if not isinstance(EndVal.type, ir.IntType):
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EndVal = Gen.builder.ptrtoint(EndVal, ir.IntType(64), name="end")
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StartVal = ir.Constant(ir.IntType(64), 0)
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StepVal = ir.Constant(EndVal.type, 1)
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CondOp = '<'
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if TargetName in Gen._reg_values:
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del Gen._reg_values[TargetName]
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if TargetName in Gen.variables and Gen.variables[TargetName] is not None:
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LoopVar = Gen.variables[TargetName]
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if isinstance(LoopVar.type, ir.PointerType) and isinstance(LoopVar.type.pointee, ir.IntType) and LoopVar.type.pointee == EndVal.type and isinstance(EndVal.type, ir.IntType) and StartVal.type == LoopVar.type.pointee and EndVal.type == StartVal.type:
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Gen._store(StartVal, LoopVar)
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else:
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NewVar = Gen._allocaEntry(EndVal.type, name=TargetName)
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if StartVal.type != EndVal.type:
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if isinstance(EndVal.type, ir.IntType) and isinstance(StartVal.type, ir.IntType):
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if StartVal.type.width < EndVal.type.width:
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StartVal = Gen.builder.zext(StartVal, EndVal.type, name="zext_loop_start")
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elif StartVal.type.width > EndVal.type.width:
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StartVal = Gen.builder.trunc(StartVal, EndVal.type, name="trunc_loop_start")
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Gen._store(StartVal, NewVar)
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Gen.variables[TargetName] = NewVar
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LoopVar = NewVar
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else:
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LoopVar = Gen._allocaEntry(EndVal.type, name=TargetName)
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Gen.variables[TargetName] = LoopVar
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Gen._store(StartVal, LoopVar)
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if StepVal and isinstance(StepVal.type, ir.IntType) and isinstance(EndVal.type, ir.IntType):
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if StepVal.type.width < EndVal.type.width:
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StepVal = Gen.builder.zext(StepVal, EndVal.type, name="zext_loop_step")
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elif StepVal.type.width > EndVal.type.width:
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StepVal = Gen.builder.trunc(StepVal, EndVal.type, name="trunc_loop_step")
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Gen._record_var_signedness(TargetName, 'int')
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CondBB = Gen.func.append_basic_block(name="for.cond")
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BodyBB = Gen.func.append_basic_block(name="for.body")
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StepBB = Gen.func.append_basic_block(name="for.step")
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ElseBB = Gen.func.append_basic_block(name="for.else") if Node.orelse else None
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AfterBB = Gen.func.append_basic_block(name="for.end")
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Gen.loop_break_targets.append(AfterBB)
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Gen.loop_continue_targets.append(StepBB)
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Gen.builder.branch(CondBB)
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Gen.builder.position_at_start(CondBB)
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LoopVal = Gen._load(LoopVar, name=TargetName)
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is_unsigned = Gen._is_var_unsigned(TargetName)
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if is_unsigned:
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Cond = Gen.builder.icmp_unsigned(CondOp, LoopVal, EndVal, name="forcond")
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else:
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Cond = Gen.builder.icmp_signed(CondOp, LoopVal, EndVal, name="forcond")
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Gen.builder.cbranch(Cond, BodyBB, ElseBB if ElseBB else AfterBB)
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Gen.builder.position_at_start(BodyBB)
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CachedLoopVal = Gen._load(LoopVar, name=TargetName)
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Gen._reg_values[TargetName] = CachedLoopVal
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self.HandleBodyLlvm(Node.body)
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StepLoopVal = CachedLoopVal
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if TargetName in Gen._reg_values and Gen._reg_values[TargetName] is CachedLoopVal:
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del Gen._reg_values[TargetName]
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else:
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StepLoopVal = Gen._load(LoopVar, name=TargetName)
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if not Gen.builder.block.is_terminated:
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Gen.builder.branch(StepBB)
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Gen.builder.position_at_start(StepBB)
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StepLoopVal2 = Gen._load(LoopVar, name=TargetName)
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NextVal = Gen.builder.add(StepLoopVal2, StepVal, name="next")
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Gen._store(NextVal, LoopVar)
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Gen.builder.branch(CondBB)
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Gen.loop_break_targets.pop()
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Gen.loop_continue_targets.pop()
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if ElseBB:
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Gen.builder.position_at_start(ElseBB)
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self.HandleBodyLlvm(Node.orelse)
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if not Gen.builder.block.is_terminated:
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Gen.builder.branch(AfterBB)
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Gen.builder.position_at_start(AfterBB)
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def _HandleGlobalLlvm(self, Node):
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Gen = self.Trans.LlvmGen
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for name in Node.names:
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Gen.global_vars.add(name)
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if name in Gen.module.globals:
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Gen.variables[name] = Gen.module.globals[name]
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if name in Gen._reg_values:
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del Gen._reg_values[name]
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def _HandleNonlocalLlvm(self, Node):
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Gen = self.Trans.LlvmGen
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for name in Node.names:
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if name in Gen._reg_values and name not in Gen.variables:
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OldVal = Gen._reg_values[name]
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var = Gen._allocaEntry(OldVal.type, name=name)
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Gen._store(OldVal, var)
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Gen.variables[name] = var
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del Gen._reg_values[name]
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def _collect_implicit_nonlocal(self, Node, Gen):
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param_names = set()
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for arg in Node.args.args:
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param_names.add(arg.arg)
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local_names = set()
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for child in ast.walk(Node):
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if isinstance(child, ast.Assign):
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for target in child.targets:
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if isinstance(target, ast.Name):
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local_names.add(target.id)
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elif isinstance(target, ast.Tuple):
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for elt in target.elts:
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if isinstance(elt, ast.Name):
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local_names.add(elt.id)
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elif isinstance(child, ast.AugAssign):
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if isinstance(child.target, ast.Name):
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local_names.add(child.target.id)
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elif isinstance(child, ast.AnnAssign):
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if isinstance(child.target, ast.Name):
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local_names.add(child.target.id)
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elif isinstance(child, ast.For):
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if isinstance(child.target, ast.Name):
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local_names.add(child.target.id)
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read_names = set()
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for child in ast.walk(Node):
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if isinstance(child, ast.Name) and isinstance(child.ctx, ast.Load):
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name = child.id
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if name not in param_names and name not in local_names:
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read_names.add(name)
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implicit = []
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for name in read_names:
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if name in Gen.variables and Gen.variables[name] is not None:
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implicit.append(name)
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elif name in Gen._reg_values:
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implicit.append(name)
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for called_name in read_names:
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if called_name in Gen.nonlocal_params:
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for nv, _ in Gen.nonlocal_params[called_name]:
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if nv not in param_names and nv not in local_names:
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if nv not in read_names:
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if nv in Gen.variables and Gen.variables[nv] is not None:
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implicit.append(nv)
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elif nv in Gen._reg_values:
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implicit.append(nv)
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return implicit
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def _collect_all_nonlocal_names(self, Node):
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"""Recursively collect all nonlocal variable names from a function and its nested functions."""
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names = set()
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for stmt in Node.body:
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if isinstance(stmt, ast.Nonlocal):
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for name in stmt.names:
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names.add(name)
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elif isinstance(stmt, ast.FunctionDef):
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# Recursively collect from nested functions
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sub_names = self._collect_all_nonlocal_names(stmt)
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names.update(sub_names)
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return names
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def _HandleNestedFunctionLlvm(self, Node):
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Gen = self.Trans.LlvmGen
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nonlocal_var_names = []
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for stmt in Node.body:
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if isinstance(stmt, ast.Nonlocal):
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for name in stmt.names:
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nonlocal_var_names.append(name)
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# Pre-scan ALL nested functions recursively for their nonlocal needs (passthrough)
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for stmt in Node.body:
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if isinstance(stmt, ast.FunctionDef):
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sub_nonlocal_names = self._collect_all_nonlocal_names(stmt)
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for name in sub_nonlocal_names:
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if name not in nonlocal_var_names:
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nonlocal_var_names.append(name)
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implicit_names = self._collect_implicit_nonlocal(Node, Gen)
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for name in implicit_names:
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if name not in nonlocal_var_names:
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nonlocal_var_names.append(name)
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extra_params = []
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for var_name in nonlocal_var_names:
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if var_name in Gen.variables and Gen.variables[var_name] is not None:
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var = Gen.variables[var_name]
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extra_params.append((var_name, var.type))
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elif var_name in Gen._reg_values:
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OldVal = Gen._reg_values[var_name]
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var = Gen._allocaEntry(OldVal.type, name=var_name)
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Gen._store(OldVal, var)
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Gen.variables[var_name] = var
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del Gen._reg_values[var_name]
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extra_params.append((var_name, var.type))
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else:
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# Search outer scope stack for the variable
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found_var = None
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for scope in reversed(Gen._variable_scope_stack):
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if var_name in scope and scope[var_name] is not None:
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found_var = scope[var_name]
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break
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if found_var is not None:
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# Add to current scope so it can be passed to nested functions
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Gen.variables[var_name] = found_var
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extra_params.append((var_name, found_var.type))
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else:
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var = Gen._allocaEntry(ir.IntType(32), name=var_name)
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Gen.variables[var_name] = var
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extra_params.append((var_name, var.type))
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if extra_params:
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Gen.nonlocal_params[Node.name] = [(name, ptr_type) for name, ptr_type in extra_params]
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# Push current variables to scope stack before compiling nested function
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Gen._variable_scope_stack.append(Gen.variables.copy())
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saved_builder = Gen.builder
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saved_func = Gen.func
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saved_variables = Gen.variables.copy()
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saved_reg_values = Gen._reg_values.copy()
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saved_global_vars = Gen.global_vars.copy()
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saved_var_signedness = Gen.var_signedness.copy()
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saved_var_type_info = Gen.var_type_info.copy()
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saved_var_type_assignments = Gen.var_type_assignments.copy()
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saved_CurrentCReturnTypes = getattr(self.Trans, 'CurrentCReturnTypes', None)
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saved_CurrentCpythonObjectClass = getattr(self.Trans, '_CurrentCpythonObjectClass', None)
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saved_VarScopes = len(self.Trans.VarScopes)
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self.Trans.FunctionHandler._EmitFunctionLlvm(Node, Gen, extra_params=extra_params if extra_params else None)
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Gen.builder = saved_builder
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Gen.func = saved_func
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Gen.variables = saved_variables
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Gen._reg_values = saved_reg_values
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Gen.global_vars = saved_global_vars
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Gen.var_signedness = saved_var_signedness
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Gen.var_type_info = saved_var_type_info
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Gen.var_type_assignments = saved_var_type_assignments
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self.Trans.CurrentCReturnTypes = saved_CurrentCReturnTypes
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self.Trans._CurrentCpythonObjectClass = saved_CurrentCpythonObjectClass
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while len(self.Trans.VarScopes) > saved_VarScopes:
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self.Trans.VarScopes.pop()
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# Pop scope stack
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if Gen._variable_scope_stack:
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Gen._variable_scope_stack.pop()
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def _HandleForListLlvm(self, Node, ArrPtr):
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Gen = self.Trans.LlvmGen
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if not isinstance(Node.target, ast.Name):
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return
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TargetName = Node.target.id
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ElemType = ArrPtr.type.pointee.element
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ArrayCount = ArrPtr.type.pointee.count
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IdxVal = Gen._allocaEntry(ir.IntType(32), name=f"arr_idx")
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Gen.builder.store(ir.Constant(ir.IntType(32), 0), IdxVal)
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if TargetName in Gen._reg_values:
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del Gen._reg_values[TargetName]
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LoopVar = Gen._allocaEntry(ElemType, name=TargetName)
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Gen.variables[TargetName] = LoopVar
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Gen._store(ir.Constant(ElemType, None), LoopVar)
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CondBB = Gen.func.append_basic_block(name="arrfor.cond")
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BodyBB = Gen.func.append_basic_block(name="arrfor.body")
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StepBB = Gen.func.append_basic_block(name="arrfor.step")
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ElseBB = Gen.func.append_basic_block(name="arrfor.else") if Node.orelse else None
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AfterBB = Gen.func.append_basic_block(name="arrfor.end")
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Gen.loop_break_targets.append(AfterBB)
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Gen.loop_continue_targets.append(StepBB)
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Gen.builder.branch(CondBB)
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Gen.builder.position_at_start(CondBB)
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CurIdx = Gen._load(IdxVal, name="cur_idx")
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IsDone = Gen.builder.icmp_signed('<', CurIdx, ir.Constant(ir.IntType(32), ArrayCount), name="arr_in_bounds")
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Gen.builder.cbranch(IsDone, BodyBB, ElseBB if ElseBB else AfterBB)
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Gen.builder.position_at_start(BodyBB)
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ElemPtr = Gen.builder.gep(ArrPtr, [ir.Constant(ir.IntType(32), 0), CurIdx], name="arr_elem_ptr")
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ElemVal = Gen._load(ElemPtr, name="arr_elem_val")
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Gen._store(ElemVal, LoopVar)
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Gen._record_var_signedness(TargetName, 'ptr')
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Gen._reg_values[TargetName] = ElemVal
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self.HandleBodyLlvm(Node.body)
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if TargetName in Gen._reg_values and Gen._reg_values[TargetName] is ElemVal:
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del Gen._reg_values[TargetName]
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if not Gen.builder.block.is_terminated:
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Gen.builder.branch(StepBB)
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Gen.builder.position_at_start(StepBB)
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CurIdx2 = Gen._load(IdxVal, name="cur_idx2")
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NextIdx = Gen.builder.add(CurIdx2, ir.Constant(ir.IntType(32), 1), name="next_idx")
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Gen._store(NextIdx, IdxVal)
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Gen.builder.branch(CondBB)
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Gen.loop_break_targets.pop()
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Gen.loop_continue_targets.pop()
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if ElseBB:
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Gen.builder.position_at_start(ElseBB)
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self.HandleBodyLlvm(Node.orelse)
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if not Gen.builder.block.is_terminated:
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Gen.builder.branch(AfterBB)
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Gen.builder.position_at_start(AfterBB)
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def _HandleForStrLlvm(self, Node, StrVal):
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Gen = self.Trans.LlvmGen
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if not isinstance(Node.target, ast.Name):
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return
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TargetName = Node.target.id
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Gen._UnregisterTempPtr(StrVal)
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PtrVal = Gen.builder.alloca(ir.IntType(8).as_pointer(), name=f"str_ptr_copy")
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Gen.builder.store(StrVal, PtrVal)
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CharType = ir.IntType(8)
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if TargetName in Gen._reg_values:
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del Gen._reg_values[TargetName]
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LoopVar = Gen._allocaEntry(CharType, name=TargetName)
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Gen.variables[TargetName] = LoopVar
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Gen._store(ir.Constant(CharType, 0), LoopVar)
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CondBB = Gen.func.append_basic_block(name="strfor.cond")
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BodyBB = Gen.func.append_basic_block(name="strfor.body")
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StepBB = Gen.func.append_basic_block(name="strfor.step")
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ElseBB = Gen.func.append_basic_block(name="strfor.else") if Node.orelse else None
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AfterBB = Gen.func.append_basic_block(name="strfor.end")
|
|
Gen.loop_break_targets.append(AfterBB)
|
|
Gen.loop_continue_targets.append(StepBB)
|
|
Gen.builder.branch(CondBB)
|
|
Gen.builder.position_at_start(CondBB)
|
|
CurrentPtr = Gen._load(PtrVal, name="current_ptr")
|
|
RawChar = Gen._load(CurrentPtr, name="raw_char")
|
|
NullCond = Gen.builder.icmp_signed('==', RawChar, ir.Constant(CharType, 0), name="is_null")
|
|
Gen.builder.cbranch(NullCond, ElseBB if ElseBB else AfterBB, BodyBB)
|
|
Gen.builder.position_at_start(BodyBB)
|
|
Gen._store(RawChar, LoopVar)
|
|
Gen._record_var_signedness(TargetName, 'char')
|
|
Gen._reg_values[TargetName] = RawChar
|
|
self.HandleBodyLlvm(Node.body)
|
|
if TargetName in Gen._reg_values and Gen._reg_values[TargetName] is RawChar:
|
|
del Gen._reg_values[TargetName]
|
|
if not Gen.builder.block.is_terminated:
|
|
Gen.builder.branch(StepBB)
|
|
Gen.builder.position_at_start(StepBB)
|
|
CurrentPtr2 = Gen._load(PtrVal, name="current_ptr2")
|
|
NextPtr = Gen.builder.gep(CurrentPtr2, [ir.Constant(ir.IntType(32), 1)], name="next_ptr")
|
|
Gen._store(NextPtr, PtrVal)
|
|
Gen.builder.branch(CondBB)
|
|
Gen.loop_break_targets.pop()
|
|
Gen.loop_continue_targets.pop()
|
|
if ElseBB:
|
|
Gen.builder.position_at_start(ElseBB)
|
|
self.HandleBodyLlvm(Node.orelse)
|
|
if not Gen.builder.block.is_terminated:
|
|
Gen.builder.branch(AfterBB)
|
|
Gen.builder.position_at_start(AfterBB)
|
|
|
|
def _HandleForIterLlvm(self, Node, ClassName):
|
|
Gen = self.Trans.LlvmGen
|
|
if not isinstance(Node.target, ast.Name):
|
|
return
|
|
TargetName = Node.target.id
|
|
IterVal = self.HandleExprLlvm(Node.iter)
|
|
if not IterVal:
|
|
return
|
|
Gen._UnregisterTempPtr(IterVal)
|
|
if isinstance(IterVal.type, ir.PointerType) and isinstance(IterVal.type.pointee, ir.IntType) and IterVal.type.pointee.width == 8:
|
|
IterVal = Gen.builder.bitcast(IterVal, ir.PointerType(Gen.structs[ClassName]), name=f"cast_{ClassName}")
|
|
IterCall = Gen._get_function(f'{ClassName}.__iter__')
|
|
IterResult = Gen.builder.call(IterCall, [IterVal], name=f"call_{ClassName}.__iter__")
|
|
Gen._UnregisterTempPtr(IterResult)
|
|
if isinstance(IterResult.type, ir.PointerType) and isinstance(IterResult.type.pointee, ir.IntType) and IterResult.type.pointee.width == 8:
|
|
IterResult = Gen.builder.bitcast(IterResult, ir.PointerType(Gen.structs[ClassName]), name=f"cast_iter_{ClassName}")
|
|
NextCall = Gen._get_function(f'{ClassName}.__next__')
|
|
StopFlagPtr = Gen._allocaEntry(ir.IntType(1), name="stop_iter_flag")
|
|
Gen.builder.store(ir.Constant(ir.IntType(1), 0), StopFlagPtr)
|
|
NextReturnType = NextCall.function_type.return_type
|
|
if TargetName in Gen._reg_values:
|
|
del Gen._reg_values[TargetName]
|
|
LoopVar = Gen._allocaEntry(NextReturnType, name=TargetName)
|
|
Gen.variables[TargetName] = LoopVar
|
|
CondBB = Gen.func.append_basic_block(name="iter.cond")
|
|
BodyBB = Gen.func.append_basic_block(name="iter.body")
|
|
StepBB = Gen.func.append_basic_block(name="iter.step")
|
|
ElseBB = Gen.func.append_basic_block(name="iter.else") if Node.orelse else None
|
|
AfterBB = Gen.func.append_basic_block(name="iter.end")
|
|
Gen.loop_break_targets.append(AfterBB)
|
|
Gen.loop_continue_targets.append(StepBB)
|
|
Gen.builder.branch(CondBB)
|
|
Gen.builder.position_at_start(CondBB)
|
|
Gen.builder.store(ir.Constant(ir.IntType(1), 0), StopFlagPtr)
|
|
NextCallArgs = [IterResult, StopFlagPtr]
|
|
if NextCall and len(NextCall.function_type.args) > len(NextCallArgs):
|
|
last_param_type = NextCall.function_type.args[-1]
|
|
if (isinstance(last_param_type, ir.PointerType)
|
|
and isinstance(last_param_type.pointee, ir.PointerType)
|
|
and isinstance(last_param_type.pointee.pointee, ir.IntType)
|
|
and last_param_type.pointee.pointee.width == 8):
|
|
null_msg = Gen._allocaEntry(ir.PointerType(ir.IntType(8)), name="eh_msg_out_null")
|
|
NextCallArgs.append(null_msg)
|
|
NextVal = Gen.builder.call(NextCall, NextCallArgs, name=f"call_{ClassName}.__next__")
|
|
StopFlag = Gen.builder.load(StopFlagPtr, name="stop_flag")
|
|
Cond = Gen.builder.icmp_signed('==', StopFlag, ir.Constant(ir.IntType(1), 0), name="iter_cond")
|
|
Gen.builder.cbranch(Cond, BodyBB, ElseBB if ElseBB else AfterBB)
|
|
Gen.builder.position_at_start(BodyBB)
|
|
Gen._store(NextVal, LoopVar)
|
|
Gen._reg_values[TargetName] = NextVal
|
|
self.HandleBodyLlvm(Node.body)
|
|
if TargetName in Gen._reg_values and Gen._reg_values[TargetName] is NextVal:
|
|
del Gen._reg_values[TargetName]
|
|
if not Gen.builder.block.is_terminated:
|
|
Gen.builder.branch(StepBB)
|
|
Gen.builder.position_at_start(StepBB)
|
|
Gen.builder.branch(CondBB)
|
|
Gen.loop_break_targets.pop()
|
|
Gen.loop_continue_targets.pop()
|
|
if ElseBB:
|
|
Gen.builder.position_at_start(ElseBB)
|
|
self.HandleBodyLlvm(Node.orelse)
|
|
if not Gen.builder.block.is_terminated:
|
|
Gen.builder.branch(AfterBB)
|
|
Gen.builder.position_at_start(AfterBB)
|