[llvm] Co-issue packed instructions by unpacking (PR #151704)

[Jeffrey Byrnes via llvm-commits]

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@@ -53,6 +64,24 @@ class GCNPreRAOptimizationsImpl {
   LiveIntervals *LIS;
 
   bool processReg(Register Reg);
+  bool createListOfPackedInstr(MachineInstr &BeginMI,
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jrbyrnes wrote:

All of these new functions need comments / documentation.

https://github.com/llvm/llvm-project/pull/151704