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(parent: cfa6e79) | patch
llvm.swift.async.context.addr cannot be modeled as NoMem because we don't want it...
authorArnold Schwaighofer <aschwaighofer@apple.com>
Wed, 20 Jul 2022 20:27:11 +0000 (13:27 -0700)
committerArnold Schwaighofer <aschwaighofer@apple.com>
Fri, 22 Jul 2022 18:50:58 +0000 (11:50 -0700)
commit58e6ee0e1f1668ff9dd93e4a4084e36bc79fdf88
tree8f7d31a8dfd1575c5e7d706a1c30f877f44ddb6etree | snapshot
parentcfa6e79df30c7f9ea319d304670dcce7e9376787commit | diff
llvm.swift.async.context.addr cannot be modeled as NoMem because we don't want it to be cse'd accross async suspends

An async suspend models the split between two partial async functions.
`llvm.swift.async.context.addr ` will have a different value in the two
partial functions so it is not correct to generally CSE the instruction.

rdar://97336162

Differential Revision: https://reviews.llvm.org/D130201
llvm/include/llvm/IR/Intrinsics.td diff | blob | history
llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp diff | blob | history
llvm/lib/Target/X86/X86ISelLowering.cpp diff | blob | history
llvm/test/Transforms/Coroutines/coro-async-no-cse-swift-async-context-addr.ll [new file with mode: 0644] blob
Domain: System / Toolchain;