[llvm] [LoopFusion] Emit optimization remarks regardless of statistics (PR #202012)

[Madhur Amilkanthwar via llvm-commits]

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@@ -69,35 +69,42 @@ using namespace llvm;
 
 #define DEBUG_TYPE "loop-fusion"
 
-STATISTIC(FuseCounter, "Loops fused");
+ALWAYS_ENABLED_STATISTIC(FuseCounter, "Loops fused");
 STATISTIC(NumFusionCandidates, "Number of candidates for loop fusion");
 STATISTIC(InvalidLoopStructure, "Loop has invalid structure");
-STATISTIC(AddressTakenBB, "Basic block has address taken");
-STATISTIC(MayThrowException, "Loop may throw an exception");
-STATISTIC(ContainsVolatileAccess, "Loop contains a volatile access");
-STATISTIC(ContainsAtomicAccess, "Loop contains an atomic access");
-STATISTIC(NotSimplifiedForm, "Loop is not in simplified form");
-STATISTIC(InvalidDependencies, "Dependencies prevent fusion");
-STATISTIC(UnknownTripCount, "Loop has unknown trip count");
+ALWAYS_ENABLED_STATISTIC(AddressTakenBB, "Basic block has address taken");
+ALWAYS_ENABLED_STATISTIC(MayThrowException, "Loop may throw an exception");
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madhur13490 wrote:

Sure, I did think about this before posting the patch but the use ALWAYS_ENABLED_STATISTIC was tempting. Please have a look

https://github.com/llvm/llvm-project/pull/202012