[PATCH] D126809: [ARM64EC 8/?] Implement ARM64EC "thunk" calling conventions

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


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Comment at: llvm/lib/Target/AArch64/AArch64CallingConvention.td:209
+let Entry = 1 in
+def CC_AArch64_Arm64EC_Thunk : CallingConv<[
+  // Byval aggregates are passed by pointer
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bcl5980 wrote:
> Do we need to add CSR for the callingconv also in this change? 
> `D6`, `D7` should be non-volatile on x64. 
CSRs are listed elsewhere... but yes, we do need to mess with AArch64RegisterInfo::getCalleeSavedRegs to make entry thunks correctly save the registers.


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  https://reviews.llvm.org/D126809/new/

https://reviews.llvm.org/D126809