[clang] [Arm64EC][clang] Implement varargs support in clang. (PR #152411)
Eli Friedman via cfe-commits
cfe-commits at lists.llvm.org
Fri Aug 8 09:59:13 PDT 2025
================
@@ -132,6 +132,10 @@ class ABIInfo {
virtual llvm::FixedVectorType *
getOptimalVectorMemoryType(llvm::FixedVectorType *T,
const LangOptions &Opt) const;
+
+ /// Used by Arm64EC calling convention code to call into x86 calling
+ /// convention code for varargs function.
+ virtual ABIArgInfo classifyArgForArm64ECVarArg(QualType Ty) const;
----------------
efriedma-quic wrote:
The concrete type in question is defined in x86.cpp, and it's called from AArch64.cpp. I don't see how we can get the concrete type, unless we do a much bigger refactor.
https://github.com/llvm/llvm-project/pull/152411
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