================
@@ -115,7 +115,13 @@ void AMDGPUABIInfo::computeInfo(CGFunctionInfo &FI) const {
Address AMDGPUABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAListAddr,
QualType Ty) const {
- llvm_unreachable("AMDGPU does not support varargs");
+ const bool IsIndirect = false;
+ const bool AllowHigherAlign = true;
+ // Would rather not naturally align values
+ // Splitting {char, short} into two separate arguments makes that difficult.
----------------
JonChesterfield wrote:
^structs < 8 bytes are packed into integers, but structs larger than that are
spread across multiple parameters in a discarding-padding sense. Better testing
revealed that one byte aligning things does not work out robustly, have had to
take a different strategy to make all the cases work. However that does mean
everything is 4 byte aligned now.
https://github.com/llvm/llvm-project/pull/89007
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