[llvm] [AMDGPU] Remove s_delay_alu for VALU->SGPR->SALU (PR #127212)

[Ana Mihajlovic via llvm-commits]

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@@ -63,12 +63,8 @@ class AMDGPUInsertDelayAlu : public MachineFunctionPass {
 
   static bool instructionWaitsForSGPRWrites(const MachineInstr &MI) {
     // These instruction types wait for VA_SDST==0 before issuing.
-    // S_CBRANCH_EXECZ and S_CBRANCH_VCCZ are covered by SALU flag
-    const uint64_t VA_SDST_0 = SIInstrFlags::SALU | SIInstrFlags::EXP |
-                               SIInstrFlags::DS | SIInstrFlags::SMRD |
-                               SIInstrFlags::MIMG | SIInstrFlags::VIMAGE |
-                               SIInstrFlags::VSAMPLE;
-        
+    const uint64_t VA_SDST_0 = SIInstrFlags::SALU | SIInstrFlags::SMRD;
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mihajlovicana wrote:

other instructions are already covered by instructionWaitsForVALU function

https://github.com/llvm/llvm-project/pull/127212