[llvm] [AMPGPU] Emit s_singleuse_vdst instructions when a register is used multiple times in the same instruction. (PR #89601)

[Scott Egerton via llvm-commits]

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@@ -114,6 +102,22 @@ class AMDGPUInsertSingleUseVDST : public MachineFunctionPass {
           for (const MCRegUnit &Unit : RegUnits)
             RegisterUseCount.erase(Unit);
         }
+
+        for (const auto &Operand : MI.all_uses()) {
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ScottEgerton wrote:

>From the point of view of this pass, I'm not sure these need special handling. The pass will treat them as regular instructions, just with a large amount of registers used.

https://github.com/llvm/llvm-project/pull/89601