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Diffstat (limited to 'compiler/optimizing/induction_var_range.cc')
-rw-r--r--compiler/optimizing/induction_var_range.cc28
1 files changed, 21 insertions, 7 deletions
diff --git a/compiler/optimizing/induction_var_range.cc b/compiler/optimizing/induction_var_range.cc
index 0a310ca940..55eca2316a 100644
--- a/compiler/optimizing/induction_var_range.cc
+++ b/compiler/optimizing/induction_var_range.cc
@@ -352,13 +352,15 @@ void InductionVarRange::Replace(HInstruction* instruction,
}
bool InductionVarRange::IsFinite(HLoopInformation* loop, /*out*/ int64_t* trip_count) const {
- HInductionVarAnalysis::InductionInfo *trip =
- induction_analysis_->LookupInfo(loop, GetLoopControl(loop));
- if (trip != nullptr && !IsUnsafeTripCount(trip)) {
- IsConstant(trip->op_a, kExact, trip_count);
- return true;
- }
- return false;
+ bool is_constant_unused = false;
+ return CheckForFiniteAndConstantProps(loop, &is_constant_unused, trip_count);
+}
+
+bool InductionVarRange::HasKnownTripCount(HLoopInformation* loop,
+ /*out*/ int64_t* trip_count) const {
+ bool is_constant = false;
+ CheckForFiniteAndConstantProps(loop, &is_constant, trip_count);
+ return is_constant;
}
bool InductionVarRange::IsUnitStride(HInstruction* context,
@@ -417,6 +419,18 @@ HInstruction* InductionVarRange::GenerateTripCount(HLoopInformation* loop,
// Private class methods.
//
+bool InductionVarRange::CheckForFiniteAndConstantProps(HLoopInformation* loop,
+ /*out*/ bool* is_constant,
+ /*out*/ int64_t* trip_count) const {
+ HInductionVarAnalysis::InductionInfo *trip =
+ induction_analysis_->LookupInfo(loop, GetLoopControl(loop));
+ if (trip != nullptr && !IsUnsafeTripCount(trip)) {
+ *is_constant = IsConstant(trip->op_a, kExact, trip_count);
+ return true;
+ }
+ return false;
+}
+
bool InductionVarRange::IsConstant(HInductionVarAnalysis::InductionInfo* info,
ConstantRequest request,
/*out*/ int64_t* value) const {