diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp | 8 | ||||
| -rw-r--r-- | lib/Transforms/ObjCARC/ObjCARCUtil.cpp | 2 |
2 files changed, 10 insertions, 0 deletions
diff --git a/lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp b/lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp index 46b2de7137..1a3f383d4c 100644 --- a/lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp +++ b/lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp @@ -150,6 +150,14 @@ ObjCARCAliasAnalysis::getModRefInfo(ImmutableCallSite CS, const Location &Loc) { break; } + // Handle special objective c calls defaulting to chaining. + const Function *F = CS.getCalledFunction(); + if (F) + return StringSwitch<AliasAnalysis::ModRefResult>(F->getName()) + .Case("objc_sync_start", NoModRef) + .Case("objc_sync_stop", NoModRef) + .Default(AliasAnalysis::getModRefInfo(CS, Loc)); + return AliasAnalysis::getModRefInfo(CS, Loc); } diff --git a/lib/Transforms/ObjCARC/ObjCARCUtil.cpp b/lib/Transforms/ObjCARC/ObjCARCUtil.cpp index 03e12d4fd7..415e76355d 100644 --- a/lib/Transforms/ObjCARC/ObjCARCUtil.cpp +++ b/lib/Transforms/ObjCARC/ObjCARCUtil.cpp @@ -112,6 +112,8 @@ InstructionClass llvm::objcarc::GetFunctionClass(const Function *F) { .Case("objc_retain_autorelease", IC_FusedRetainAutorelease) .Case("objc_retainAutorelease", IC_FusedRetainAutorelease) .Case("objc_retainAutoreleaseReturnValue",IC_FusedRetainAutoreleaseRV) + .Case("objc_sync_enter", IC_User) + .Case("objc_sync_exit", IC_User) .Default(IC_CallOrUser); // Argument is i8** |