[clang] [llvm] [AMDGPU] First installment of IGLP_OPT 4 (MFMAValuSpacingOpt) implementation (PR #190916)

[Matt Arsenault via cfe-commits]

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@@ -3244,6 +3244,20 @@ static bool hasIGLPInstrs(ScheduleDAGInstrs *DAG) {
   });
 }
 
+static bool hasIGLPOpt(ScheduleDAGInstrs *DAG, int64_t StrategyImm) {
+  return any_of(*DAG, [StrategyImm](MachineBasicBlock::iterator MI) {
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arsenm wrote:

Does this really need to scan through all instructions in the block for each of these situations 

https://github.com/llvm/llvm-project/pull/190916