diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/DivRemPairs.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/DivRemPairs.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/DivRemPairs.cpp b/llvm/lib/Transforms/Scalar/DivRemPairs.cpp index e1bc590c5c9..ffcf34f1cf7 100644 --- a/llvm/lib/Transforms/Scalar/DivRemPairs.cpp +++ b/llvm/lib/Transforms/Scalar/DivRemPairs.cpp @@ -21,6 +21,7 @@ #include "llvm/IR/Dominators.h" #include "llvm/IR/Function.h" #include "llvm/Pass.h" +#include "llvm/Support/DebugCounter.h" #include "llvm/Transforms/Scalar.h" #include "llvm/Transforms/Utils/BypassSlowDivision.h" using namespace llvm; @@ -29,6 +30,8 @@ using namespace llvm; STATISTIC(NumPairs, "Number of div/rem pairs"); STATISTIC(NumHoisted, "Number of instructions hoisted"); STATISTIC(NumDecomposed, "Number of instructions decomposed"); +DEBUG_COUNTER(DRPCounter, "div-rem-pairs-transform", + "Controls transformations in div-rem-pairs pass"); /// Find matching pairs of integer div/rem ops (they have the same numerator, /// denominator, and signedness). If they exist in different basic blocks, bring @@ -93,6 +96,9 @@ static bool optimizeDivRem(Function &F, const TargetTransformInfo &TTI, if (!DivDominates && !DT.dominates(RemInst, DivInst)) continue; + if (!DebugCounter::shouldExecute(DRPCounter)) + continue; + if (HasDivRemOp) { // The target has a single div/rem operation. Hoist the lower instruction // to make the matched pair visible to the backend. |
