diff options
| author | John McCall <rjmccall@apple.com> | 2011-02-26 09:12:15 +0000 |
|---|---|---|
| committer | John McCall <rjmccall@apple.com> | 2011-02-26 09:12:15 +0000 |
| commit | a1bcc4ddb1ed8be9be6950232941d80a04f80819 (patch) | |
| tree | b8799bd828722d2bbb3f6ab5cad4d8e45bd060e5 /lib | |
| parent | 92ee7ca6f42d2bd735f9bfc120c00838c4e469c0 (diff) | |
Zero-initialize the struct-return slot of an Objective-C message
send before making the call. Fixes rdar://problem/7854674
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126543 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/CGObjCMac.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp index 7c679b9059..f5befceb0f 100644 --- a/lib/CodeGen/CGObjCMac.cpp +++ b/lib/CodeGen/CGObjCMac.cpp @@ -1639,6 +1639,7 @@ CGObjCCommonMac::EmitLegacyMessageSend(CodeGen::CodeGenFunction &CGF, llvm::Constant *Fn = NULL; if (CGM.ReturnTypeUsesSRet(FnInfo)) { + CGF.EmitNullInitialization(Return.getValue(), ResultType); Fn = (ObjCABI == 2) ? ObjCTypes.getSendStretFn2(IsSuper) : ObjCTypes.getSendStretFn(IsSuper); } else if (CGM.ReturnTypeUsesFPRet(ResultType)) { @@ -5629,6 +5630,7 @@ CodeGen::RValue CGObjCNonFragileABIMac::EmitMessageSend( llvm::Constant *Fn = 0; std::string Name("\01l_"); if (CGM.ReturnTypeUsesSRet(FnInfo)) { + CGF.EmitNullInitialization(Return.getValue(), ResultType); if (IsSuper) { Fn = ObjCTypes.getMessageSendSuper2StretFixupFn(); Name += "objc_msgSendSuper2_stret_fixup"; |