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-rw-r--r--clang/lib/CodeGen/CodeGenModule.cpp7
-rw-r--r--clang/test/CodeGenCXX/arm.cpp2
-rw-r--r--clang/test/CodeGenCXX/constructor-destructor-return-this.cpp18
3 files changed, 24 insertions, 3 deletions
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 89d177fdb05..d997a79f5b2 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -775,7 +775,12 @@ void CodeGenModule::SetFunctionAttributes(GlobalDecl GD,
if (!IsIncompleteFunction)
SetLLVMFunctionAttributes(FD, getTypes().arrangeGlobalDeclaration(GD), F);
- if (getCXXABI().HasThisReturn(GD)) {
+ // Add the Returned attribute for "this", except for iOS 5 and earlier
+ // where substantial code, including the libstdc++ dylib, was compiled with
+ // GCC and does not actually return "this".
+ if (getCXXABI().HasThisReturn(GD) &&
+ !(getTarget().getTriple().isiOS() &&
+ getTarget().getTriple().isOSVersionLT(6))) {
assert(!F->arg_empty() &&
F->arg_begin()->getType()
->canLosslesslyBitCastTo(F->getReturnType()) &&
diff --git a/clang/test/CodeGenCXX/arm.cpp b/clang/test/CodeGenCXX/arm.cpp
index 2fb9c49bb70..2790199446d 100644
--- a/clang/test/CodeGenCXX/arm.cpp
+++ b/clang/test/CodeGenCXX/arm.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -triple=thumbv7-apple-ios3.0 -fno-use-cxa-atexit -target-abi apcs-gnu -emit-llvm -o - -fexceptions | FileCheck %s
+// RUN: %clang_cc1 %s -triple=thumbv7-apple-ios6.0 -fno-use-cxa-atexit -target-abi apcs-gnu -emit-llvm -o - -fexceptions | FileCheck %s
// CHECK: @_ZZN5test74testEvE1x = internal global i32 0, align 4
// CHECK: @_ZGVZN5test74testEvE1x = internal global i32 0
diff --git a/clang/test/CodeGenCXX/constructor-destructor-return-this.cpp b/clang/test/CodeGenCXX/constructor-destructor-return-this.cpp
index d93a0d18482..ce6ddd29f64 100644
--- a/clang/test/CodeGenCXX/constructor-destructor-return-this.cpp
+++ b/clang/test/CodeGenCXX/constructor-destructor-return-this.cpp
@@ -1,5 +1,6 @@
//RUN: %clang_cc1 %s -emit-llvm -o - -triple=i686-unknown-linux | FileCheck --check-prefix=CHECKGEN %s
-//RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7-apple-ios3.0 -target-abi apcs-gnu | FileCheck --check-prefix=CHECKARM %s
+//RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7-apple-ios6.0 -target-abi apcs-gnu | FileCheck --check-prefix=CHECKARM %s
+//RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv7-apple-ios5.0 -target-abi apcs-gnu | FileCheck --check-prefix=CHECKIOS5 %s
//RUN: %clang_cc1 %s -emit-llvm -o - -triple=i386-pc-win32 -fno-rtti | FileCheck --check-prefix=CHECKMS %s
// FIXME: these tests crash on the bots when run with -triple=x86_64-pc-win32
@@ -37,6 +38,11 @@ B::~B() { }
// CHECKARM-LABEL: define %class.B* @_ZN1BD2Ev(%class.B* returned %this)
// CHECKARM-LABEL: define %class.B* @_ZN1BD1Ev(%class.B* returned %this)
+// CHECKIOS5-LABEL: define %class.B* @_ZN1BC2EPi(%class.B* %this, i32* %i)
+// CHECKIOS5-LABEL: define %class.B* @_ZN1BC1EPi(%class.B* %this, i32* %i)
+// CHECKIOS5-LABEL: define %class.B* @_ZN1BD2Ev(%class.B* %this)
+// CHECKIOS5-LABEL: define %class.B* @_ZN1BD1Ev(%class.B* %this)
+
// CHECKMS-LABEL: define x86_thiscallcc %class.B* @"\01??0B@@QAE@PAH@Z"(%class.B* returned %this, i32* %i)
// CHECKMS-LABEL: define x86_thiscallcc void @"\01??1B@@QAE@XZ"(%class.B* %this)
@@ -63,6 +69,12 @@ C::~C() { }
// CHECKARM-LABEL: define %class.C* @_ZN1CD1Ev(%class.C* returned %this)
// CHECKARM-LABEL: define void @_ZN1CD0Ev(%class.C* %this)
+// CHECKIOS5-LABEL: define %class.C* @_ZN1CC2EPiPc(%class.C* %this, i32* %i, i8* %c)
+// CHECKIOS5-LABEL: define %class.C* @_ZN1CC1EPiPc(%class.C* %this, i32* %i, i8* %c)
+// CHECKIOS5-LABEL: define %class.C* @_ZN1CD2Ev(%class.C* %this)
+// CHECKIOS5-LABEL: define %class.C* @_ZN1CD1Ev(%class.C* %this)
+// CHECKIOS5-LABEL: define void @_ZN1CD0Ev(%class.C* %this)
+
// CHECKMS-LABEL: define x86_thiscallcc %class.C* @"\01??0C@@QAE@PAHPAD@Z"(%class.C* returned %this, i32* %i, i8* %c)
// CHECKMS-LABEL: define x86_thiscallcc void @"\01??1C@@UAE@XZ"(%class.C* %this)
@@ -85,6 +97,10 @@ D::~D() { }
// CHECKARM-LABEL: define %class.D* @_ZN1DD2Ev(%class.D* returned %this, i8** %vtt)
// CHECKARM-LABEL: define %class.D* @_ZN1DD1Ev(%class.D* returned %this)
+// CHECKIOS5-LABEL: define %class.D* @_ZN1DC2Ev(%class.D* %this, i8** %vtt)
+// CHECKIOS5-LABEL: define %class.D* @_ZN1DC1Ev(%class.D* %this)
+// CHECKIOS5-LABEL: define %class.D* @_ZN1DD2Ev(%class.D* %this, i8** %vtt)
+// CHECKIOS5-LABEL: define %class.D* @_ZN1DD1Ev(%class.D* %this)
// CHECKMS-LABEL: define x86_thiscallcc %class.D* @"\01??0D@@QAE@XZ"(%class.D* returned %this, i32 %is_most_derived)
// CHECKMS-LABEL: define x86_thiscallcc void @"\01??1D@@QAE@XZ"(%class.D* %this)
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