[PATCH] D108644: [LoopFlatten] Add statistic for number of loops flattened. NFC
Rosie Sumpter via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Aug 25 02:13:42 PDT 2021
This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGe2217247146a: [LoopFlatten] Add statistic for number of loops flattened. NFC (authored by RosieSumpter).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D108644/new/
https://reviews.llvm.org/D108644
Files:
llvm/lib/Transforms/Scalar/LoopFlatten.cpp
Index: llvm/lib/Transforms/Scalar/LoopFlatten.cpp
===================================================================
--- llvm/lib/Transforms/Scalar/LoopFlatten.cpp
+++ llvm/lib/Transforms/Scalar/LoopFlatten.cpp
@@ -27,6 +27,8 @@
//===----------------------------------------------------------------------===//
#include "llvm/Transforms/Scalar/LoopFlatten.h"
+
+#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/OptimizationRemarkEmitter.h"
@@ -49,11 +51,13 @@
#include "llvm/Transforms/Utils/ScalarEvolutionExpander.h"
#include "llvm/Transforms/Utils/SimplifyIndVar.h"
-#define DEBUG_TYPE "loop-flatten"
-
using namespace llvm;
using namespace llvm::PatternMatch;
+#define DEBUG_TYPE "loop-flatten"
+
+STATISTIC(NumFlattened, "Number of loops flattened");
+
static cl::opt<unsigned> RepeatedInstructionThreshold(
"loop-flatten-cost-threshold", cl::Hidden, cl::init(2),
cl::desc("Limit on the cost of instructions that can be repeated due to "
@@ -630,6 +634,10 @@
SE->forgetLoop(FI.OuterLoop);
SE->forgetLoop(FI.InnerLoop);
LI->erase(FI.InnerLoop);
+
+ // Increment statistic value.
+ NumFlattened++;
+
return true;
}
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