[llvm] [AMDGPU] Rework VOPD constraints for gfx12+ with data deps (PR #191264)

[Matt Arsenault via llvm-commits]

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@@ -34,9 +34,21 @@ using namespace llvm;
 
 #define DEBUG_TYPE "gcn-vopd-utils"
 
+bool AMDGPU::hasDataDependencyForVOPD(const MachineInstr &FirstMI,
+                                      const MachineInstr &SecondMI) {
+  const GCNSubtarget &ST = FirstMI.getMF()->getSubtarget<GCNSubtarget>();
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arsenm wrote:

This could just go into SIInstrInfo 

https://github.com/llvm/llvm-project/pull/191264