diff options
Diffstat (limited to 'llvm/lib/IR/Mangler.cpp')
| -rw-r--r-- | llvm/lib/IR/Mangler.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/lib/IR/Mangler.cpp b/llvm/lib/IR/Mangler.cpp index ca6a480..55c825d 100644 --- a/llvm/lib/IR/Mangler.cpp +++ b/llvm/lib/IR/Mangler.cpp @@ -307,6 +307,19 @@ std::optional<std::string> llvm::getArm64ECMangledFunctionName(StringRef Name) { if (Name.contains("$$h")) return std::nullopt; + // Handle MD5 mangled names, which use a slightly different rule from + // other C++ manglings. + // + // A non-Arm64EC function: + // + // ??@aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa@ + // + // An Arm64EC function: + // + // ??@aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa@$$h@ + if (Name.starts_with("??@") && Name.ends_with("@")) + return (Name + "$$h@").str(); + // Ask the demangler where we should insert "$$h". auto InsertIdx = getArm64ECInsertionPointInMangledName(Name); if (!InsertIdx) @@ -324,6 +337,10 @@ llvm::getArm64ECDemangledFunctionName(StringRef Name) { if (Name[0] != '?') return std::nullopt; + // MD5 mangled name; see comment in getArm64ECMangledFunctionName. + if (Name.starts_with("??@") && Name.ends_with("@$$h@")) + return Name.drop_back(4).str(); + // Drop the ARM64EC "$$h" tag. std::pair<StringRef, StringRef> Pair = Name.split("$$h"); if (Pair.second.empty()) |