compiler: revert cabe5ac

The lack of debug emitter causes #1821.
This commit is contained in:
occheung 2022-01-10 11:25:51 +08:00
parent eaa1505c94
commit 6f3c49528d
1 changed files with 97 additions and 0 deletions

View File

@ -39,6 +39,94 @@ def memoize(generator):
return memoized
class DebugInfoEmitter:
def __init__(self, llmodule):
self.llmodule = llmodule
self.llcompileunit = None
self.cache = {}
llident = self.llmodule.add_named_metadata('llvm.ident')
llident.add(self.emit_metadata(["ARTIQ"]))
llflags = self.llmodule.add_named_metadata('llvm.module.flags')
llflags.add(self.emit_metadata([2, "Debug Info Version", 3]))
llflags.add(self.emit_metadata([2, "Dwarf Version", 4]))
def emit_metadata(self, operands):
def map_operand(operand):
if operand is None:
return ll.Constant(llmetadata, None)
elif isinstance(operand, str):
return ll.MetaDataString(self.llmodule, operand)
elif isinstance(operand, int):
return ll.Constant(lli32, operand)
elif isinstance(operand, (list, tuple)):
return self.emit_metadata(operand)
else:
assert isinstance(operand, ll.NamedValue)
return operand
return self.llmodule.add_metadata(list(map(map_operand, operands)))
def emit_debug_info(self, kind, operands, is_distinct=False):
return self.llmodule.add_debug_info(kind, operands, is_distinct)
@memoize
def emit_file(self, source_buffer):
source_dir, source_file = os.path.split(source_buffer.name)
return self.emit_debug_info("DIFile", {
"filename": source_file,
"directory": source_dir,
})
@memoize
def emit_compile_unit(self, source_buffer):
return self.emit_debug_info("DICompileUnit", {
"language": ll.DIToken("DW_LANG_Python"),
"file": self.emit_file(source_buffer),
"producer": "ARTIQ",
"runtimeVersion": 0,
"emissionKind": 2, # full=1, lines only=2
}, is_distinct=True)
@memoize
def emit_subroutine_type(self, typ):
return self.emit_debug_info("DISubroutineType", {
"types": self.emit_metadata([None])
})
@memoize
def emit_subprogram(self, func, llfunc):
source_buffer = func.loc.source_buffer
if self.llcompileunit is None:
self.llcompileunit = self.emit_compile_unit(source_buffer)
llcompileunits = self.llmodule.add_named_metadata('llvm.dbg.cu')
llcompileunits.add(self.llcompileunit)
display_name = "{}{}".format(func.name, types.TypePrinter().name(func.type))
return self.emit_debug_info("DISubprogram", {
"name": func.name,
"linkageName": llfunc.name,
"type": self.emit_subroutine_type(func.type),
"file": self.emit_file(source_buffer),
"line": func.loc.line(),
"unit": self.llcompileunit,
"scope": self.emit_file(source_buffer),
"scopeLine": func.loc.line(),
"isLocal": func.is_internal,
"isDefinition": True,
"variables": self.emit_metadata([])
}, is_distinct=True)
@memoize
def emit_loc(self, loc, scope):
return self.emit_debug_info("DILocation", {
"line": loc.line(),
"column": loc.column(),
"scope": scope
})
class ABILayoutInfo:
"""Caches DataLayout size/alignment lookup results.
@ -84,6 +172,7 @@ class LLVMIRGenerator:
self.llmap = {}
self.llobject_map = {}
self.phis = []
self.debug_info_emitter = DebugInfoEmitter(self.llmodule)
self.empty_metadata = self.llmodule.add_metadata([])
self.quote_fail_msg = None
@ -564,6 +653,10 @@ class LLVMIRGenerator:
self.llbuilder = ll.IRBuilder()
llblock_map = {}
if not func.is_generated:
lldisubprogram = self.debug_info_emitter.emit_subprogram(func, self.llfunction)
self.llfunction.set_metadata('dbg', lldisubprogram)
# First, map arguments.
if self.has_sret(func.type):
llactualargs = self.llfunction.args[1:]
@ -583,6 +676,10 @@ class LLVMIRGenerator:
for block in func.basic_blocks:
self.llbuilder.position_at_end(self.llmap[block])
for insn in block.instructions:
if insn.loc is not None and not func.is_generated:
self.llbuilder.debug_metadata = \
self.debug_info_emitter.emit_loc(insn.loc, lldisubprogram)
llinsn = getattr(self, "process_" + type(insn).__name__)(insn)
assert llinsn is not None
self.llmap[insn] = llinsn