[llvm] [NewPM] Port MachineCombiner to the new pass manager (PR #217279)

[Bill Wendling via llvm-commits]

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@@ -639,16 +652,17 @@ bool MachineCombiner::combineInstructions(MachineBasicBlock *MBB) {
       }
 
       if (ML && TII->isThroughputPattern(P)) {
-        LLVM_DEBUG(dbgs() << "\t Replacing due to throughput pattern in loop\n");
+        LLVM_DEBUG(
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isanbard wrote:

Reverted.

https://github.com/llvm/llvm-project/pull/217279