================
@@ -1251,6 +1264,69 @@ struct CounterCoverageMappingBuilder
popRegions(Index);
}
+ /// Find a valid range starting with \p StartingLoc and ending before \p
+ /// BeforeLoc.
+ std::optional<SourceRange> findAreaStartingFromTo(SourceLocation StartingLoc,
+ SourceLocation BeforeLoc) {
+ // If StartingLoc is in function-like macro, use its start location.
+ if (StartingLoc.isMacroID()) {
+ FileID FID = SM.getFileID(StartingLoc);
+ const SrcMgr::ExpansionInfo *EI = &SM.getSLocEntry(FID).getExpansion();
+ if (EI->isFunctionMacroExpansion())
+ StartingLoc = EI->getExpansionLocStart();
+ }
+
+ size_t StartDepth = locationDepth(StartingLoc);
+ size_t EndDepth = locationDepth(BeforeLoc);
+ while (!SM.isWrittenInSameFile(StartingLoc, BeforeLoc)) {
+ bool UnnestStart = StartDepth >= EndDepth;
+ bool UnnestEnd = EndDepth >= StartDepth;
+ if (UnnestEnd) {
----------------
hanickadot wrote:
it's a pattern used thru whole `CoverageMappingGen.cpp` file, it's copied and
modified existing functions for calculating Gap regions, so I would rather not
https://github.com/llvm/llvm-project/pull/78033
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