[PATCH] D80230: [ProfileSummary] Refactor getFromMD to prepare for another optional field. NFC.
Hiroshi Yamauchi via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue May 19 12:37:07 PDT 2020
yamauchi created this revision.
yamauchi added a reviewer: davidxl.
Herald added subscribers: hiraditya, eraman.
Herald added a project: LLVM.
yamauchi added a parent revision: D79951: [ProfileSummary] Add the PartialProfileRatio field in ProfileSummary metadata..
Rename 'i' to 'I'.
Factor out the optional field handling to getOptionalVal().
Split out of D79951 <https://reviews.llvm.org/D79951>.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D80230
Files:
llvm/lib/IR/ProfileSummary.cpp
Index: llvm/lib/IR/ProfileSummary.cpp
===================================================================
--- llvm/lib/IR/ProfileSummary.cpp
+++ llvm/lib/IR/ProfileSummary.cpp
@@ -145,13 +145,29 @@
return true;
}
+// Get the value of an optional field. Increment 'Idx' if it was present. Return
+// true if we can move onto the next field.
+template <typename ValueType>
+static bool getOptionalVal(MDTuple *Tuple, unsigned &Idx, const char *Key,
+ ValueType &Value) {
+ if (getVal(dyn_cast<MDTuple>(Tuple->getOperand(Idx)), Key, Value)) {
+ Idx++;
+ // Need to make sure when the key is present, we won't step over the bound
+ // of Tuple operand array. Since (non-optional) DetailedSummary always comes
+ // last, the next entry in the tuple operand array must exist.
+ return Idx < Tuple->getNumOperands();
+ }
+ // It was absent, keep going.
+ return true;
+}
+
ProfileSummary *ProfileSummary::getFromMD(Metadata *MD) {
MDTuple *Tuple = dyn_cast_or_null<MDTuple>(MD);
- if (!Tuple && (Tuple->getNumOperands() < 8 || Tuple->getNumOperands() > 9))
+ if (!Tuple || Tuple->getNumOperands() < 8 || Tuple->getNumOperands() > 9)
return nullptr;
- int i = 0;
- auto &FormatMD = Tuple->getOperand(i++);
+ unsigned I = 0;
+ auto &FormatMD = Tuple->getOperand(I++);
ProfileSummary::Kind SummaryKind;
if (isKeyValuePair(dyn_cast_or_null<MDTuple>(FormatMD), "ProfileFormat",
"SampleProfile"))
@@ -167,39 +183,31 @@
uint64_t NumCounts, TotalCount, NumFunctions, MaxFunctionCount, MaxCount,
MaxInternalCount;
- if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(i++)), "TotalCount",
+ if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(I++)), "TotalCount",
TotalCount))
return nullptr;
- if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(i++)), "MaxCount", MaxCount))
+ if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(I++)), "MaxCount", MaxCount))
return nullptr;
- if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(i++)), "MaxInternalCount",
+ if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(I++)), "MaxInternalCount",
MaxInternalCount))
return nullptr;
- if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(i++)), "MaxFunctionCount",
+ if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(I++)), "MaxFunctionCount",
MaxFunctionCount))
return nullptr;
- if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(i++)), "NumCounts",
+ if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(I++)), "NumCounts",
NumCounts))
return nullptr;
- if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(i++)), "NumFunctions",
+ if (!getVal(dyn_cast<MDTuple>(Tuple->getOperand(I++)), "NumFunctions",
NumFunctions))
return nullptr;
- // Initialize IsPartialProfile because the field is optional.
- uint64_t IsPartialProfile = 0;
- // IsPartialProfile is optional so it doesn't matter even if the next val
- // is not IsPartialProfile.
- if (getVal(dyn_cast<MDTuple>(Tuple->getOperand(i)), "IsPartialProfile",
- IsPartialProfile)) {
- // Need to make sure when IsPartialProfile is presented, we won't step
- // over the bound of Tuple operand array.
- if (Tuple->getNumOperands() < 9)
- return nullptr;
- i++;
- }
+ // Optional fields. Need to initialize because the fields are optional.
+ uint64_t IsPartialProfile = 0;
+ if (!getOptionalVal(Tuple, I, "IsPartialProfile", IsPartialProfile))
+ return nullptr;
SummaryEntryVector Summary;
- if (!getSummaryFromMD(dyn_cast<MDTuple>(Tuple->getOperand(i++)), Summary))
+ if (!getSummaryFromMD(dyn_cast<MDTuple>(Tuple->getOperand(I++)), Summary))
return nullptr;
return new ProfileSummary(SummaryKind, std::move(Summary), TotalCount,
MaxCount, MaxInternalCount, MaxFunctionCount,
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