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Tomasz Miąsko
46d5d397d9
Add a demangling support for a small subset of a new Rust mangling scheme, with complete support planned as a follow up work. Intergate Rust demangling into llvm-cxxfilt and use llvm-cxxfilt for end-to-end testing. The new Rust mangling scheme uses "_R" as a prefix, which makes it easy to disambiguate it from other mangling schemes. The public API is modeled after __cxa_demangle / llvm::itaniumDemangle, since potential candidates for further integration use those. Reviewed By: dblaikie Differential Revision: https://reviews.llvm.org/D101444
44 lines
804 B
Plaintext
44 lines
804 B
Plaintext
RUN: llvm-cxxfilt -n < %s | FileCheck --match-full-lines %s
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CHECK: a::main
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_RNvC1a4main
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CHECK: hello::rust
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_RNvCshGpAVYOtgW1_5hello4rust
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CHECK: a::b::c
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_RNvNvC1a1b1c
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; Invalid mangled characters
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CHECK: _RNvC2a.1c
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_RNvC2a.1c
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CHECK: _RNvC2a$1c
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_RNvC2a$1c
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; Invalid identifier length (UINT64_MAX + 3, which happens to be ok after a wraparound).
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CHECK: _RNvC2ab18446744073709551618xy
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_RNvC2ab18446744073709551618xy
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; Mangling scheme includes an optional encoding version. When present it would
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; indicate an encoding we don't support yet. Check that it is rejected:
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CHECK: _R0NvC1a4main
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_R0NvC1a4main
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; Early EOF
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CHECK: _RNv
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_RNv
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CHECK: _RNvC
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_RNvC
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CHECK: _RNvC1a5main
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_RNvC1a5main
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CHECK: _RNvC1a20abc
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_RNvC1a20abc
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