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-rw-r--r--clang/lib/CodeGen/CodeGenPGO.cpp27
1 files changed, 12 insertions, 15 deletions
diff --git a/clang/lib/CodeGen/CodeGenPGO.cpp b/clang/lib/CodeGen/CodeGenPGO.cpp
index 403380efcb4..38774332f31 100644
--- a/clang/lib/CodeGen/CodeGenPGO.cpp
+++ b/clang/lib/CodeGen/CodeGenPGO.cpp
@@ -605,27 +605,24 @@ uint64_t PGOHash::finalize() {
return endian::read<uint64_t, little, unaligned>(Result);
}
-void CodeGenPGO::checkGlobalDecl(GlobalDecl GD) {
- // Make sure we only emit coverage mapping for one constructor/destructor.
- // Clang emits several functions for the constructor and the destructor of
- // a class. Every function is instrumented, but we only want to provide
- // coverage for one of them. Because of that we only emit the coverage mapping
- // for the base constructor/destructor.
- if ((isa<CXXConstructorDecl>(GD.getDecl()) &&
- GD.getCtorType() != Ctor_Base) ||
- (isa<CXXDestructorDecl>(GD.getDecl()) &&
- GD.getDtorType() != Dtor_Base)) {
- SkipCoverageMapping = true;
- }
-}
-
-void CodeGenPGO::assignRegionCounters(const Decl *D, llvm::Function *Fn) {
+void CodeGenPGO::assignRegionCounters(GlobalDecl GD, llvm::Function *Fn) {
+ const Decl *D = GD.getDecl();
bool InstrumentRegions = CGM.getCodeGenOpts().ProfileInstrGenerate;
llvm::IndexedInstrProfReader *PGOReader = CGM.getPGOReader();
if (!InstrumentRegions && !PGOReader)
return;
if (D->isImplicit())
return;
+ // Constructors and destructors may be represented by several functions in IR.
+ // If so, instrument only base variant, others are implemented by delegation
+ // to the base one, it would be counted twice otherwise.
+ if (CGM.getTarget().getCXXABI().hasConstructorVariants() &&
+ ((isa<CXXConstructorDecl>(GD.getDecl()) &&
+ GD.getCtorType() != Ctor_Base) ||
+ (isa<CXXDestructorDecl>(GD.getDecl()) &&
+ GD.getDtorType() != Dtor_Base))) {
+ return;
+ }
CGM.ClearUnusedCoverageMapping(D);
setFuncName(Fn);
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