[llvm] [LoongArch] Enable tail calls for sret and byval functions (PR #168506)

[Lu Weining via llvm-commits]

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@@ -32,10 +32,17 @@ class LoongArchMachineFunctionInfo : public MachineFunctionInfo {
   /// Size of stack frame to save callee saved registers
   unsigned CalleeSavedStackSize = 0;
 
+  /// ArgumentStackSize - amount of bytes on stack consumed by the arguments
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SixWeining wrote:

Use same comment style as other class members by removing the prefix `ArgumentStackSize - `.

https://github.com/llvm/llvm-project/pull/168506