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Add basic block and instruction position descriptors

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This commit is contained in:
Mark Florisson 2013-01-21 20:58:32 -06:00
commit 3b75974731
2 changed files with 97 additions and 22 deletions
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59
test/test_debuginfo.py
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@ -31,21 +31,15 @@ class TestDebugInfo(unittest.TestCase):
bb = square.append_basic_block('entry')
bldr = Builder.new(bb)
compile_unit = debuginfo.CompileUnitDescriptor(
# DW_LANG_Python segfaults:
# llvm/ADT/StringRef.h:79: llvm::StringRef::StringRef(const char*):
# Assertion `Str && "StringRef cannot be built from a NULL argument"'
# _dwarf.DW_LANG_Python,
_dwarf.DW_LANG_C89,
"test_debug_info.py",
os.path.expanduser("~"),
"my_cool_compiler",
)
source_filename = "test_debug_info.py"
source_filedir = os.path.expanduser("~")
filedesc = debuginfo.FileDescriptor.from_compileunit(compile_unit)
# Debug info for our file
filedesc = debuginfo.FileDescriptor(source_filename, source_filedir)
# Debug info for our function
subprogram = debuginfo.SubprogramDescriptor(
compile_unit,
filedesc,
"some_function",
"some_function",
"some_function",
@ -56,26 +50,53 @@ class TestDebugInfo(unittest.TestCase):
)
subprograms = debuginfo.MDList([subprogram])
# compile_unit.add_metadata("subprograms", subprograms)
compile_unit.define(mod)
subprogram.define(mod)
# Debug info for our basic blocks
blockdescr1 = debuginfo.BlockDescriptor(subprogram, 2, 4) # lineno, col
blockdescr2 = debuginfo.BlockDescriptor(blockdescr1, 3, 4) # lineno, col
# Debug info for our instructions
posinfo1 = debuginfo.PositionInfoDescriptor(2, 4, blockdescr1)
posinfo2 = debuginfo.PositionInfoDescriptor(2, 4, blockdescr2)
# Debug info for our module
compile_unit = debuginfo.CompileUnitDescriptor(
# DW_LANG_Python segfaults:
# llvm/ADT/StringRef.h:79: llvm::StringRef::StringRef(const char*):
# Assertion `Str && "StringRef cannot be built from a NULL argument"'
# _dwarf.DW_LANG_Python,
_dwarf.DW_LANG_C89,
source_filename,
source_filedir,
"my_cool_compiler",
subprograms=subprograms,
)
# Define our module debug data
compile_unit.define(mod)
# Build some instructions
value = square.args[0]
result = bldr.fmul(value, value)
bldr.ret(result)
ret = bldr.ret(result)
print mod
# Annotate instructions with source position
result.set_metadata("dbg", posinfo1.get_metadata(mod))
ret.set_metadata("dbg", posinfo2.get_metadata(mod))
# ... Aaaand, test...
# print mod
modstr = str(mod)
# Test compile unit
self.assertIn("my_cool_compiler", modstr)
self.assertIn("test_debug_info.py", modstr)
self.assertIn(os.path.expanduser("~"), modstr)
self.assertIn(source_filename, modstr)
self.assertIn(source_filedir, modstr)
self.assertIn("my_cool_compiler", modstr)
# Test subprogram
self.assertIn("some_function", modstr)
self.assertIn("float (float)* @square", modstr)
if __name__ == '__main__':
# TestDebugInfo("test_dwarf_constants").debug()