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# ===----------------------------------------------------------------------===//
#
# This source file is part of the Swift.org open source project
#
# Copyright (c) 2023-2024 Apple Inc. and the Swift project authors
# Licensed under Apache License v2.0 with Runtime Library Exception
#
# See https://swift.org/LICENSE.txt for license information
# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
#
# ===----------------------------------------------------------------------===//
atomicTypes = [
# Name, Size, Alignment, Builtin, Swift Type
("_Atomic8BitStorage", "8", "1", "Builtin.Int8", "UInt8"),
("_Atomic16BitStorage", "16", "2", "Builtin.Int16", "UInt16"),
("_Atomic32BitStorage", "32", "4", "Builtin.Int32", "UInt32"),
("_Atomic64BitStorage", "64", "8", "Builtin.Int64", "UInt64"),
# Note: WordPair only on 64 bit platforms.
("_Atomic128BitStorage", "128", "16", "Builtin.Int128", "WordPair"),
]
atomicBits = ["", "8", "16", "32", "64", "128"]
loadOrderings = [
# Swift, API name, doc name, LLVM name
("relaxed", "Relaxed", "relaxed", "monotonic"),
("acquiring", "Acquiring", "acquiring", "acquire"),
(
"sequentiallyConsistent",
"SequentiallyConsistent",
"sequentially consistent",
"seqcst"
)
]
storeOrderings = [
# Swift enum case, API name, doc name, LLVM name
("relaxed", "Relaxed", "relaxed", "monotonic"),
("releasing", "Releasing", "releasing", "release"),
(
"sequentiallyConsistent",
"SequentiallyConsistent",
"sequentially consistent",
"seqcst"
)
]
updateOrderings = [
# Swift enum case, API name, doc name, LLVM name, failure name
("relaxed", "Relaxed", "relaxed", "monotonic", "monotonic"),
("acquiring", "Acquiring", "acquiring", "acquire", "acquire"),
("releasing", "Releasing", "releasing", "release", "monotonic"),
(
"acquiringAndReleasing",
"AcquiringAndReleasing",
"acquiring-and-releasing",
"acqrel",
"acquire"
),
(
"sequentiallyConsistent",
"SequentiallyConsistent",
"sequentially consistent",
"seqcst",
"seqcst"
),
]
integerOperations = [
# Swift name, llvm name, operator, doc name
("WrappingAdd", "add", "&+", "wrapping add"),
("WrappingSubtract", "sub", "&-", "wrapping subtract"),
("BitwiseAnd", "and", "&", "bitwise AND"),
("BitwiseOr", "or", "|", "bitwise OR"),
("BitwiseXor", "xor", "^", "bitwise XOR"),
# These two are handled specially in source.
("Min", "min", "", "minimum"),
("Max", "max", "", "maximum")
]
boolOperations = [
# Swift name, llvm name, operator, doc
("LogicalAnd", "and", "&&", "logical AND"),
("LogicalOr", "or", "||", "logical OR"),
("LogicalXor", "xor", "!=", "logical XOR")
]
# LLVM doesn't support arbitrary ordering combinations yet, so for the
# two-ordering cmpxchg variants we need to upgrade the success
# ordering when necessary so that it is at least as "strong" as the
# failure case. This function implements that mapping.
#
# See llvm/Support/AtomicOrdering.h
def actualOrders(success, failure):
def max(success, failure):
if failure == "acquire":
if success == "monotonic":
return "acquire"
if success == "release":
return "acqrel"
if failure == "seqcst":
return "seqcst"
return success
actualSuccess = max(success, failure)
return actualSuccess + "_" + failure
def llvmToCaseName(ordering):
if ordering == "monotonic":
return "relaxed"
if ordering == "acquire":
return "acquiring"
if ordering == "release":
return "releasing"
if ordering == "acqrel":
return "acquiringAndReleasing"
if ordering == "seqcst":
return "sequentiallyConsistent"
def atomicOperationName(intType, operation):
if operation == "Min":
return "umin" if intType.startswith("U") else "min"
if operation == "Max":
return "umax" if intType.startswith("U") else "max"
return operation
def lowerFirst(str):
return str[:1].lower() + str[1:] if str else ""
def argLabel(label):
return label + ": " if label != "_" else ""
|
