diff --git a/clang/test/CodeGenCXX/nrvo.cpp b/clang/test/CodeGenCXX/nrvo.cpp
--- a/clang/test/CodeGenCXX/nrvo.cpp
+++ b/clang/test/CodeGenCXX/nrvo.cpp
@@ -1,13 +1,14 @@
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -O1 -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -O1 -fcxx-exceptions -fexceptions -std=c++03 -o - %s | FileCheck --check-prefixes=CHECK-EH,CHECK-EH-03 %s
-// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -O1 -fcxx-exceptions -fexceptions -std=c++11 -o - %s | FileCheck --check-prefixes=CHECK-EH,CHECK-EH-11 %s
+// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -O1 -fcxx-exceptions -fexceptions -std=c++11 -DCXX11 -o - %s | FileCheck --check-prefixes=CHECK-EH,CHECK-EH-11 %s
// Test code generation for the named return value optimization.
class X {
public:
X();
X(const X&);
+ X(const volatile X &);
~X();
};
@@ -19,6 +20,9 @@
}
};
+void ConsumeX(X x);
+extern X OuterX;
+
// CHECK-LABEL: @_Z5test0v(
// CHECK-NEXT: entry:
// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]]) #[[ATTR5:[0-9]+]]
@@ -32,7 +36,7 @@
X test0() {
X x;
- return x;
+ return x; // NRVO happens
}
// CHECK-LABEL: @_Z5test1b(
@@ -48,8 +52,8 @@
X test1(bool B) {
X x;
if (B)
- return (x);
- return x;
+ return (x); // NRVO happens
+ return x; // NRVO happens
}
// CHECK-LABEL: @_Z5test2b(
@@ -155,13 +159,11 @@
// CHECK-EH-11-NEXT: resume { i8*, i32 } [[DOTPN]]
//
X test2(bool B) {
- // No NRVO.
-
X x;
X y;
if (B)
- return y;
- return x;
+ return y; // NRVO is impossible
+ return x; // NRVO is impossible
}
// CHECK-LABEL: @_Z5test3b(
@@ -245,11 +247,10 @@
X test3(bool B) {
if (B) {
X y;
- return y;
+ return y; // NRVO happens
}
- // FIXME: we should NRVO this variable too.
X x;
- return x;
+ return x; // FIXME: NRVO could happen, but doesn't
}
extern "C" void exit(int) throw();
@@ -291,7 +292,7 @@
{
X x;
if (B)
- return x;
+ return x; // NRVO happens
}
exit(1);
}
@@ -411,7 +412,7 @@
try {
may_throw();
} catch (X x) {
- return x;
+ return x; // FIXME: NRVO could happen, but doesn't
}
}
#endif
@@ -476,7 +477,7 @@
//
X test6() {
X a __attribute__((aligned(8)));
- return a;
+ return a; // NRVO is impossible
}
// CHECK-LABEL: @_Z5test7b(
@@ -492,7 +493,7 @@
X test7(bool b) {
if (b) {
X x;
- return x;
+ return x; // NRVO happens
}
return X();
}
@@ -510,10 +511,10 @@
X test8(bool b) {
if (b) {
X x;
- return x;
+ return x; // NRVO happens
} else {
X y;
- return y;
+ return y; // NRVO happens
}
}
@@ -536,3 +537,1227 @@
Y<int> test9() {
Y<int>::f();
}
+
+// CHECK-LABEL: @_Z6test10b(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
+// CHECK: if.then:
+// CHECK-NEXT: call void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[CLEANUP:%.*]]
+// CHECK: if.else:
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[CLEANUP]]
+// CHECK: cleanup:
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-03-LABEL: @_Z6test10b(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-03-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
+// CHECK-EH-03: if.then:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[CLEANUP:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-03: lpad:
+// CHECK-EH-03-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT2:%.*]] unwind label [[TERMINATE_LPAD:%.*]]
+// CHECK-EH-03: if.else:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]])
+// CHECK-EH-03-NEXT: to label [[CLEANUP]] unwind label [[LPAD]]
+// CHECK-EH-03: cleanup:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: ret void
+// CHECK-EH-03: invoke.cont2:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: resume { i8*, i32 } [[TMP1]]
+// CHECK-EH-03: terminate.lpad:
+// CHECK-EH-03-NEXT: [[TMP2:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: catch i8* null
+// CHECK-EH-03-NEXT: [[TMP3:%.*]] = extractvalue { i8*, i32 } [[TMP2]], 0
+// CHECK-EH-03-NEXT: call void @__clang_call_terminate(i8* [[TMP3]]) #[[ATTR8]]
+// CHECK-EH-03-NEXT: unreachable
+//
+// CHECK-EH-11-LABEL: @_Z6test10b(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
+// CHECK-EH-11: if.then:
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: to label [[CLEANUP:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[TMP1]]
+// CHECK-EH-11: if.else:
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]])
+// CHECK-EH-11-NEXT: to label [[CLEANUP]] unwind label [[LPAD]]
+// CHECK-EH-11: cleanup:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: ret void
+//
+X test10(bool b) {
+ X x;
+ if (b)
+ return x; // NRVO is impossible
+ else
+ return X();
+}
+
+// CHECK-LABEL: @_Z6test11b(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK: if.then:
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[CLEANUP:%.*]]
+// CHECK: if.end:
+// CHECK-NEXT: call void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[CLEANUP]]
+// CHECK: cleanup:
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-03-LABEL: @_Z6test11b(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-03-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-03: if.then:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-03-NEXT: to label [[CLEANUP:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-03: lpad:
+// CHECK-EH-03-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT2:%.*]] unwind label [[TERMINATE_LPAD:%.*]]
+// CHECK-EH-03: if.end:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[CLEANUP]] unwind label [[LPAD]]
+// CHECK-EH-03: cleanup:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: ret void
+// CHECK-EH-03: invoke.cont2:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: resume { i8*, i32 } [[TMP1]]
+// CHECK-EH-03: terminate.lpad:
+// CHECK-EH-03-NEXT: [[TMP2:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: catch i8* null
+// CHECK-EH-03-NEXT: [[TMP3:%.*]] = extractvalue { i8*, i32 } [[TMP2]], 0
+// CHECK-EH-03-NEXT: call void @__clang_call_terminate(i8* [[TMP3]]) #[[ATTR8]]
+// CHECK-EH-03-NEXT: unreachable
+//
+// CHECK-EH-11-LABEL: @_Z6test11b(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-11: if.then:
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-11-NEXT: to label [[CLEANUP:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[TMP1]]
+// CHECK-EH-11: if.end:
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: to label [[CLEANUP]] unwind label [[LPAD]]
+// CHECK-EH-11: cleanup:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: ret void
+//
+X test11(bool b) {
+ X x;
+ if (b)
+ return X();
+ return x; // NRVO is impossible
+}
+
+// CHECK-LABEL: @_Z6test12b(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]]) #[[ATTR5]]
+// CHECK-NEXT: br i1 [[B:%.*]], label [[NRVO_UNUSED:%.*]], label [[RETURN:%.*]]
+// CHECK: nrvo.unused:
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[RETURN]]
+// CHECK: return:
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-03-LABEL: @_Z6test12b(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-03-NEXT: br i1 [[B:%.*]], label [[NRVO_UNUSED:%.*]], label [[RETURN:%.*]]
+// CHECK-EH-03: nrvo.unused:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]])
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]])
+// CHECK-EH-03-NEXT: br label [[RETURN]]
+// CHECK-EH-03: return:
+// CHECK-EH-03-NEXT: ret void
+//
+// CHECK-EH-11-LABEL: @_Z6test12b(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-11-NEXT: br i1 [[B:%.*]], label [[NRVO_UNUSED:%.*]], label [[RETURN:%.*]]
+// CHECK-EH-11: nrvo.unused:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]])
+// CHECK-EH-11-NEXT: br label [[RETURN]]
+// CHECK-EH-11: return:
+// CHECK-EH-11-NEXT: ret void
+//
+X test12(bool b) {
+ do {
+ X x;
+ if (b)
+ break;
+ return x; // NRVO happens
+ } while (false);
+ return X();
+}
+
+// CHECK-LABEL: @_Z6test13b(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK: if.then:
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[RETURN:%.*]]
+// CHECK: if.end:
+// CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[RETURN]]
+// CHECK: return:
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-03-LABEL: @_Z6test13b(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-03-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-03: if.then:
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-03-NEXT: br label [[RETURN:%.*]]
+// CHECK-EH-03: if.end:
+// CHECK-EH-03-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-03: invoke.cont:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[RETURN]]
+// CHECK-EH-03: lpad:
+// CHECK-EH-03-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT1:%.*]] unwind label [[TERMINATE_LPAD:%.*]]
+// CHECK-EH-03: invoke.cont1:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: resume { i8*, i32 } [[TMP1]]
+// CHECK-EH-03: return:
+// CHECK-EH-03-NEXT: ret void
+// CHECK-EH-03: terminate.lpad:
+// CHECK-EH-03-NEXT: [[TMP2:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: catch i8* null
+// CHECK-EH-03-NEXT: [[TMP3:%.*]] = extractvalue { i8*, i32 } [[TMP2]], 0
+// CHECK-EH-03-NEXT: call void @__clang_call_terminate(i8* [[TMP3]]) #[[ATTR8]]
+// CHECK-EH-03-NEXT: unreachable
+//
+// CHECK-EH-11-LABEL: @_Z6test13b(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-11: if.then:
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-11-NEXT: br label [[RETURN:%.*]]
+// CHECK-EH-11: if.end:
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: invoke.cont:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[RETURN]]
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[TMP1]]
+// CHECK-EH-11: return:
+// CHECK-EH-11-NEXT: ret void
+//
+X test13(bool b) {
+ if (b)
+ return X();
+ X x;
+ return x; // FIXME: NRVO could happen, but doesn't
+}
+
+// CHECK-LABEL: @_Z6test14b(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-NEXT: [[Y:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK: if.then:
+// CHECK-NEXT: call void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[CLEANUP:%.*]]
+// CHECK: if.end:
+// CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP1]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP1]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[CLEANUP]]
+// CHECK: cleanup:
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-03-LABEL: @_Z6test14b(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-03-NEXT: [[Y:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-03-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-03: if.then:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[CLEANUP:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-03: lpad:
+// CHECK-EH-03-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: br label [[EHCLEANUP7:%.*]]
+// CHECK-EH-03: if.end:
+// CHECK-EH-03-NEXT: [[TMP2:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT2:%.*]] unwind label [[LPAD1:%.*]]
+// CHECK-EH-03: invoke.cont2:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT4:%.*]] unwind label [[LPAD3:%.*]]
+// CHECK-EH-03: invoke.cont4:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT5:%.*]] unwind label [[LPAD1]]
+// CHECK-EH-03: lpad1:
+// CHECK-EH-03-NEXT: [[TMP3:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: br label [[EHCLEANUP:%.*]]
+// CHECK-EH-03: lpad3:
+// CHECK-EH-03-NEXT: [[TMP4:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[EHCLEANUP]] unwind label [[TERMINATE_LPAD:%.*]]
+// CHECK-EH-03: invoke.cont5:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[CLEANUP]]
+// CHECK-EH-03: ehcleanup:
+// CHECK-EH-03-NEXT: [[DOTPN:%.*]] = phi { i8*, i32 } [ [[TMP3]], [[LPAD1]] ], [ [[TMP4]], [[LPAD3]] ]
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[EHCLEANUP7]]
+// CHECK-EH-03: cleanup:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: ret void
+// CHECK-EH-03: ehcleanup7:
+// CHECK-EH-03-NEXT: [[DOTPN13:%.*]] = phi { i8*, i32 } [ [[TMP1]], [[LPAD]] ], [ [[DOTPN]], [[EHCLEANUP]] ]
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT8:%.*]] unwind label [[TERMINATE_LPAD]]
+// CHECK-EH-03: invoke.cont8:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: resume { i8*, i32 } [[DOTPN13]]
+// CHECK-EH-03: terminate.lpad:
+// CHECK-EH-03-NEXT: [[TMP5:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: catch i8* null
+// CHECK-EH-03-NEXT: [[TMP6:%.*]] = extractvalue { i8*, i32 } [[TMP5]], 0
+// CHECK-EH-03-NEXT: call void @__clang_call_terminate(i8* [[TMP6]]) #[[ATTR8]]
+// CHECK-EH-03-NEXT: unreachable
+//
+// CHECK-EH-11-LABEL: @_Z6test14b(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: [[Y:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-11: if.then:
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: to label [[CLEANUP:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP5:%.*]]
+// CHECK-EH-11: if.end:
+// CHECK-EH-11-NEXT: [[TMP2:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT2:%.*]] unwind label [[LPAD1:%.*]]
+// CHECK-EH-11: invoke.cont2:
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT4:%.*]] unwind label [[LPAD3:%.*]]
+// CHECK-EH-11: invoke.cont4:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[CLEANUP]]
+// CHECK-EH-11: lpad1:
+// CHECK-EH-11-NEXT: [[TMP3:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP:%.*]]
+// CHECK-EH-11: lpad3:
+// CHECK-EH-11-NEXT: [[TMP4:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP]]
+// CHECK-EH-11: ehcleanup:
+// CHECK-EH-11-NEXT: [[DOTPN:%.*]] = phi { i8*, i32 } [ [[TMP4]], [[LPAD3]] ], [ [[TMP3]], [[LPAD1]] ]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP5]]
+// CHECK-EH-11: cleanup:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: ret void
+// CHECK-EH-11: ehcleanup5:
+// CHECK-EH-11-NEXT: [[DOTPN10:%.*]] = phi { i8*, i32 } [ [[TMP1]], [[LPAD]] ], [ [[DOTPN]], [[EHCLEANUP]] ]
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[DOTPN10]]
+//
+X test14(bool b) {
+ X x;
+ if (b)
+ return x;
+ X y;
+ return y; // FIXME: NRVO could happen, but doesn't
+}
+
+// CHECK-LABEL: @_Z6test15b(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-NEXT: [[Y:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK: if.then:
+// CHECK-NEXT: call void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[CLEANUP:%.*]]
+// CHECK: if.end:
+// CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP1]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP1]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[CLEANUP]]
+// CHECK: cleanup:
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-03-LABEL: @_Z6test15b(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-03-NEXT: [[Y:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-03-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-03: if.then:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[CLEANUP:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-03: lpad:
+// CHECK-EH-03-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: br label [[EHCLEANUP7:%.*]]
+// CHECK-EH-03: if.end:
+// CHECK-EH-03-NEXT: [[TMP2:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT2:%.*]] unwind label [[LPAD1:%.*]]
+// CHECK-EH-03: invoke.cont2:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT4:%.*]] unwind label [[LPAD3:%.*]]
+// CHECK-EH-03: invoke.cont4:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT5:%.*]] unwind label [[LPAD1]]
+// CHECK-EH-03: lpad1:
+// CHECK-EH-03-NEXT: [[TMP3:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: br label [[EHCLEANUP:%.*]]
+// CHECK-EH-03: lpad3:
+// CHECK-EH-03-NEXT: [[TMP4:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[EHCLEANUP]] unwind label [[TERMINATE_LPAD:%.*]]
+// CHECK-EH-03: invoke.cont5:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[CLEANUP]]
+// CHECK-EH-03: ehcleanup:
+// CHECK-EH-03-NEXT: [[DOTPN:%.*]] = phi { i8*, i32 } [ [[TMP3]], [[LPAD1]] ], [ [[TMP4]], [[LPAD3]] ]
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[EHCLEANUP7]]
+// CHECK-EH-03: cleanup:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: ret void
+// CHECK-EH-03: ehcleanup7:
+// CHECK-EH-03-NEXT: [[DOTPN13:%.*]] = phi { i8*, i32 } [ [[TMP1]], [[LPAD]] ], [ [[DOTPN]], [[EHCLEANUP]] ]
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT8:%.*]] unwind label [[TERMINATE_LPAD]]
+// CHECK-EH-03: invoke.cont8:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: resume { i8*, i32 } [[DOTPN13]]
+// CHECK-EH-03: terminate.lpad:
+// CHECK-EH-03-NEXT: [[TMP5:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: catch i8* null
+// CHECK-EH-03-NEXT: [[TMP6:%.*]] = extractvalue { i8*, i32 } [[TMP5]], 0
+// CHECK-EH-03-NEXT: call void @__clang_call_terminate(i8* [[TMP6]]) #[[ATTR8]]
+// CHECK-EH-03-NEXT: unreachable
+//
+// CHECK-EH-11-LABEL: @_Z6test15b(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: [[Y:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-11: if.then:
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: to label [[CLEANUP:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP5:%.*]]
+// CHECK-EH-11: if.end:
+// CHECK-EH-11-NEXT: [[TMP2:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT2:%.*]] unwind label [[LPAD1:%.*]]
+// CHECK-EH-11: invoke.cont2:
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT4:%.*]] unwind label [[LPAD3:%.*]]
+// CHECK-EH-11: invoke.cont4:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[CLEANUP]]
+// CHECK-EH-11: lpad1:
+// CHECK-EH-11-NEXT: [[TMP3:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP:%.*]]
+// CHECK-EH-11: lpad3:
+// CHECK-EH-11-NEXT: [[TMP4:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP]]
+// CHECK-EH-11: ehcleanup:
+// CHECK-EH-11-NEXT: [[DOTPN:%.*]] = phi { i8*, i32 } [ [[TMP4]], [[LPAD3]] ], [ [[TMP3]], [[LPAD1]] ]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP5]]
+// CHECK-EH-11: cleanup:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: ret void
+// CHECK-EH-11: ehcleanup5:
+// CHECK-EH-11-NEXT: [[DOTPN10:%.*]] = phi { i8*, i32 } [ [[TMP1]], [[LPAD]] ], [ [[DOTPN]], [[EHCLEANUP]] ]
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[DOTPN10]]
+//
+X test15(bool b) {
+ X x;
+ if (b)
+ return (x);
+ X y;
+ return ((y)); // FIXME: NRVO could happen, but doesn't
+}
+
+#ifdef CXX11
+// CHECK-EH-11-LABEL: @_Z6test16v(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: [[AGG_TMP:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_TMP]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: invoke.cont:
+// CHECK-EH-11-NEXT: invoke void @_Z8ConsumeX1X(%class.X* noundef nonnull [[AGG_TMP]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT2:%.*]] unwind label [[LPAD1:%.*]]
+// CHECK-EH-11: invoke.cont2:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_TMP]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: ret void
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP:%.*]]
+// CHECK-EH-11: lpad1:
+// CHECK-EH-11-NEXT: [[TMP2:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_TMP]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[EHCLEANUP]]
+// CHECK-EH-11: ehcleanup:
+// CHECK-EH-11-NEXT: [[DOTPN:%.*]] = phi { i8*, i32 } [ [[TMP2]], [[LPAD1]] ], [ [[TMP1]], [[LPAD]] ]
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[DOTPN]]
+//
+void test16() {
+ X x;
+ ConsumeX([&] {
+ X y(x);
+ return y; // NRVO happens
+ }());
+}
+#endif
+
+// CHECK-LABEL: @_Z6test17i(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[I:%.*]], 3
+// CHECK-NEXT: br label [[WHILE_BODY:%.*]]
+// CHECK: impossible:
+// CHECK-NEXT: br i1 [[CMP]], label [[RETURN_SINK_SPLIT:%.*]], label [[WHILE_BODY_BACKEDGE:%.*]]
+// CHECK: while.body.backedge:
+// CHECK-NEXT: br label [[WHILE_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+// CHECK: while.body:
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]]) #[[ATTR5]]
+// CHECK-NEXT: switch i32 [[I]], label [[IF_END20:%.*]] [
+// CHECK-NEXT: i32 0, label [[CLEANUP:%.*]]
+// CHECK-NEXT: i32 1, label [[IF_THEN7:%.*]]
+// CHECK-NEXT: i32 2, label [[IF_THEN10:%.*]]
+// CHECK-NEXT: i32 3, label [[IF_THEN13:%.*]]
+// CHECK-NEXT: i32 4, label [[IF_THEN16:%.*]]
+// CHECK-NEXT: i32 5, label [[CLEANUP]]
+// CHECK-NEXT: ]
+// CHECK: if.then7:
+// CHECK-NEXT: br label [[CLEANUP]]
+// CHECK: if.then10:
+// CHECK-NEXT: br label [[CLEANUP]], !llvm.loop [[LOOP3]]
+// CHECK: if.then13:
+// CHECK-NEXT: br label [[CLEANUP]]
+// CHECK: if.then16:
+// CHECK-NEXT: call void @exit(i32 noundef 1) #[[ATTR5]]
+// CHECK-NEXT: br label [[IF_END20]]
+// CHECK: if.end20:
+// CHECK-NEXT: br label [[CLEANUP]]
+// CHECK: cleanup:
+// CHECK-NEXT: [[NRVO_0:%.*]] = phi i1 [ false, [[IF_THEN7]] ], [ false, [[IF_THEN10]] ], [ false, [[IF_THEN13]] ], [ false, [[IF_END20]] ], [ true, [[WHILE_BODY]] ], [ true, [[WHILE_BODY]] ]
+// CHECK-NEXT: [[CLEANUP_DEST_SLOT_0:%.*]] = phi i32 [ 4, [[IF_THEN7]] ], [ 3, [[IF_THEN10]] ], [ 2, [[IF_THEN13]] ], [ 0, [[IF_END20]] ], [ 1, [[WHILE_BODY]] ], [ 1, [[WHILE_BODY]] ]
+// CHECK-NEXT: br i1 [[NRVO_0]], label [[NRVO_SKIPDTOR:%.*]], label [[NRVO_UNUSED:%.*]]
+// CHECK: nrvo.unused:
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[NRVO_SKIPDTOR]]
+// CHECK: nrvo.skipdtor:
+// CHECK-NEXT: switch i32 [[CLEANUP_DEST_SLOT_0]], label [[UNREACHABLE:%.*]] [
+// CHECK-NEXT: i32 0, label [[WHILE_BODY_BACKEDGE]]
+// CHECK-NEXT: i32 1, label [[RETURN:%.*]]
+// CHECK-NEXT: i32 4, label [[RETURN_SINK_SPLIT]]
+// CHECK-NEXT: i32 3, label [[WHILE_BODY_BACKEDGE]]
+// CHECK-NEXT: i32 2, label [[IMPOSSIBLE:%.*]]
+// CHECK-NEXT: ]
+// CHECK: return.sink.split:
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[RETURN]]
+// CHECK: return:
+// CHECK-NEXT: ret void
+// CHECK: unreachable:
+// CHECK-NEXT: unreachable
+//
+// CHECK-EH-03-LABEL: @_Z6test17i(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: [[CMP:%.*]] = icmp eq i32 [[I:%.*]], 3
+// CHECK-EH-03-NEXT: br label [[WHILE_BODY:%.*]]
+// CHECK-EH-03: impossible:
+// CHECK-EH-03-NEXT: br i1 [[CMP]], label [[RETURN_SINK_SPLIT:%.*]], label [[WHILE_BODY_BACKEDGE:%.*]]
+// CHECK-EH-03: while.body.backedge:
+// CHECK-EH-03-NEXT: br label [[WHILE_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+// CHECK-EH-03: while.body:
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-03-NEXT: switch i32 [[I]], label [[IF_END20:%.*]] [
+// CHECK-EH-03-NEXT: i32 0, label [[CLEANUP:%.*]]
+// CHECK-EH-03-NEXT: i32 1, label [[IF_THEN7:%.*]]
+// CHECK-EH-03-NEXT: i32 2, label [[IF_THEN10:%.*]]
+// CHECK-EH-03-NEXT: i32 3, label [[IF_THEN13:%.*]]
+// CHECK-EH-03-NEXT: i32 4, label [[IF_THEN16:%.*]]
+// CHECK-EH-03-NEXT: i32 5, label [[CLEANUP]]
+// CHECK-EH-03-NEXT: ]
+// CHECK-EH-03: if.then7:
+// CHECK-EH-03-NEXT: br label [[CLEANUP]]
+// CHECK-EH-03: if.then10:
+// CHECK-EH-03-NEXT: br label [[CLEANUP]], !llvm.loop [[LOOP3]]
+// CHECK-EH-03: if.then13:
+// CHECK-EH-03-NEXT: br label [[CLEANUP]]
+// CHECK-EH-03: if.then16:
+// CHECK-EH-03-NEXT: call void @exit(i32 noundef 1) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[IF_END20]]
+// CHECK-EH-03: if.end20:
+// CHECK-EH-03-NEXT: br label [[CLEANUP]]
+// CHECK-EH-03: cleanup:
+// CHECK-EH-03-NEXT: [[NRVO_0:%.*]] = phi i1 [ false, [[IF_THEN7]] ], [ false, [[IF_THEN10]] ], [ false, [[IF_THEN13]] ], [ false, [[IF_END20]] ], [ true, [[WHILE_BODY]] ], [ true, [[WHILE_BODY]] ]
+// CHECK-EH-03-NEXT: [[CLEANUP_DEST_SLOT_0:%.*]] = phi i32 [ 4, [[IF_THEN7]] ], [ 3, [[IF_THEN10]] ], [ 2, [[IF_THEN13]] ], [ 0, [[IF_END20]] ], [ 1, [[WHILE_BODY]] ], [ 1, [[WHILE_BODY]] ]
+// CHECK-EH-03-NEXT: br i1 [[NRVO_0]], label [[NRVO_SKIPDTOR:%.*]], label [[NRVO_UNUSED:%.*]]
+// CHECK-EH-03: nrvo.unused:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]])
+// CHECK-EH-03-NEXT: br label [[NRVO_SKIPDTOR]]
+// CHECK-EH-03: nrvo.skipdtor:
+// CHECK-EH-03-NEXT: switch i32 [[CLEANUP_DEST_SLOT_0]], label [[UNREACHABLE:%.*]] [
+// CHECK-EH-03-NEXT: i32 0, label [[WHILE_BODY_BACKEDGE]]
+// CHECK-EH-03-NEXT: i32 1, label [[RETURN:%.*]]
+// CHECK-EH-03-NEXT: i32 4, label [[RETURN_SINK_SPLIT]]
+// CHECK-EH-03-NEXT: i32 3, label [[WHILE_BODY_BACKEDGE]]
+// CHECK-EH-03-NEXT: i32 2, label [[IMPOSSIBLE:%.*]]
+// CHECK-EH-03-NEXT: ]
+// CHECK-EH-03: return.sink.split:
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]])
+// CHECK-EH-03-NEXT: br label [[RETURN]]
+// CHECK-EH-03: return:
+// CHECK-EH-03-NEXT: ret void
+// CHECK-EH-03: unreachable:
+// CHECK-EH-03-NEXT: unreachable
+//
+// CHECK-EH-11-LABEL: @_Z6test17i(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[CMP:%.*]] = icmp eq i32 [[I:%.*]], 3
+// CHECK-EH-11-NEXT: br label [[WHILE_BODY:%.*]]
+// CHECK-EH-11: impossible:
+// CHECK-EH-11-NEXT: br i1 [[CMP]], label [[RETURN_SINK_SPLIT:%.*]], label [[WHILE_BODY_BACKEDGE:%.*]]
+// CHECK-EH-11: while.body.backedge:
+// CHECK-EH-11-NEXT: br label [[WHILE_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
+// CHECK-EH-11: while.body:
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-11-NEXT: switch i32 [[I]], label [[IF_END20:%.*]] [
+// CHECK-EH-11-NEXT: i32 0, label [[CLEANUP:%.*]]
+// CHECK-EH-11-NEXT: i32 1, label [[IF_THEN7:%.*]]
+// CHECK-EH-11-NEXT: i32 2, label [[IF_THEN10:%.*]]
+// CHECK-EH-11-NEXT: i32 3, label [[IF_THEN13:%.*]]
+// CHECK-EH-11-NEXT: i32 4, label [[IF_THEN16:%.*]]
+// CHECK-EH-11-NEXT: i32 5, label [[CLEANUP]]
+// CHECK-EH-11-NEXT: ]
+// CHECK-EH-11: if.then7:
+// CHECK-EH-11-NEXT: br label [[CLEANUP]]
+// CHECK-EH-11: if.then10:
+// CHECK-EH-11-NEXT: br label [[CLEANUP]], !llvm.loop [[LOOP3]]
+// CHECK-EH-11: if.then13:
+// CHECK-EH-11-NEXT: br label [[CLEANUP]]
+// CHECK-EH-11: if.then16:
+// CHECK-EH-11-NEXT: call void @exit(i32 noundef 1) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[IF_END20]]
+// CHECK-EH-11: if.end20:
+// CHECK-EH-11-NEXT: br label [[CLEANUP]]
+// CHECK-EH-11: cleanup:
+// CHECK-EH-11-NEXT: [[NRVO_0:%.*]] = phi i1 [ false, [[IF_THEN7]] ], [ false, [[IF_THEN10]] ], [ false, [[IF_THEN13]] ], [ false, [[IF_END20]] ], [ true, [[WHILE_BODY]] ], [ true, [[WHILE_BODY]] ]
+// CHECK-EH-11-NEXT: [[CLEANUP_DEST_SLOT_0:%.*]] = phi i32 [ 4, [[IF_THEN7]] ], [ 3, [[IF_THEN10]] ], [ 2, [[IF_THEN13]] ], [ 0, [[IF_END20]] ], [ 1, [[WHILE_BODY]] ], [ 1, [[WHILE_BODY]] ]
+// CHECK-EH-11-NEXT: br i1 [[NRVO_0]], label [[NRVO_SKIPDTOR:%.*]], label [[NRVO_UNUSED:%.*]]
+// CHECK-EH-11: nrvo.unused:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[NRVO_SKIPDTOR]]
+// CHECK-EH-11: nrvo.skipdtor:
+// CHECK-EH-11-NEXT: switch i32 [[CLEANUP_DEST_SLOT_0]], label [[UNREACHABLE:%.*]] [
+// CHECK-EH-11-NEXT: i32 0, label [[WHILE_BODY_BACKEDGE]]
+// CHECK-EH-11-NEXT: i32 1, label [[RETURN:%.*]]
+// CHECK-EH-11-NEXT: i32 4, label [[RETURN_SINK_SPLIT]]
+// CHECK-EH-11-NEXT: i32 3, label [[WHILE_BODY_BACKEDGE]]
+// CHECK-EH-11-NEXT: i32 2, label [[IMPOSSIBLE:%.*]]
+// CHECK-EH-11-NEXT: ]
+// CHECK-EH-11: return.sink.split:
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]])
+// CHECK-EH-11-NEXT: br label [[RETURN]]
+// CHECK-EH-11: return:
+// CHECK-EH-11-NEXT: ret void
+// CHECK-EH-11: unreachable:
+// CHECK-EH-11-NEXT: unreachable
+//
+X test17(int i) {
+ if (false) {
+ impossible:
+ if (i == 3)
+ return X();
+ }
+
+ while (true) {
+ X x;
+ if (i == 0)
+ return x; // NRVO happens
+ if (i == 1)
+ break;
+ if (i == 2)
+ continue;
+ if (i == 3)
+ goto impossible;
+ if (i == 4)
+ exit(1);
+ if (i == 5)
+ return x; // NRVO happens
+ }
+ return X();
+}
+
+// CHECK-LABEL: @_Z6test18i(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[Y:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-NEXT: [[Z:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]]) #[[ATTR5]]
+// CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[I:%.*]], 0
+// CHECK-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[NRVO_UNUSED:%.*]]
+// CHECK: nrvo.unused:
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR5]]
+// CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[I]], 1
+// CHECK-NEXT: br i1 [[CMP1]], label [[IF_THEN2:%.*]], label [[CLEANUP_CONT7_CRITEDGE:%.*]]
+// CHECK: if.then2:
+// CHECK-NEXT: call void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[RETURN]]
+// CHECK: cleanup.cont7.critedge:
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Z]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP1]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Z]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Z]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Z]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP1]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[RETURN]]
+// CHECK: return:
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-03-LABEL: @_Z6test18i(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: [[Y:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-03-NEXT: [[Z:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-03-NEXT: [[CMP:%.*]] = icmp eq i32 [[I:%.*]], 0
+// CHECK-EH-03-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[NRVO_UNUSED:%.*]]
+// CHECK-EH-03: nrvo.unused:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]])
+// CHECK-EH-03-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: [[CMP1:%.*]] = icmp eq i32 [[I]], 1
+// CHECK-EH-03-NEXT: br i1 [[CMP1]], label [[IF_THEN2:%.*]], label [[CLEANUP_CONT8_CRITEDGE:%.*]]
+// CHECK-EH-03: if.then2:
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[CLEANUP4:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-03: lpad:
+// CHECK-EH-03-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT5:%.*]] unwind label [[TERMINATE_LPAD:%.*]]
+// CHECK-EH-03: cleanup4:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[RETURN]]
+// CHECK-EH-03: cleanup.cont8.critedge:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: [[TMP2:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Z]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Z]])
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Z]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT10:%.*]] unwind label [[LPAD9:%.*]]
+// CHECK-EH-03: invoke.cont10:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Z]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[RETURN]]
+// CHECK-EH-03: invoke.cont5:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[EH_RESUME:%.*]]
+// CHECK-EH-03: lpad9:
+// CHECK-EH-03-NEXT: [[TMP3:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Z]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT12:%.*]] unwind label [[TERMINATE_LPAD]]
+// CHECK-EH-03: invoke.cont12:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[EH_RESUME]]
+// CHECK-EH-03: return:
+// CHECK-EH-03-NEXT: ret void
+// CHECK-EH-03: eh.resume:
+// CHECK-EH-03-NEXT: [[DOTPN:%.*]] = phi { i8*, i32 } [ [[TMP3]], [[INVOKE_CONT12]] ], [ [[TMP1]], [[INVOKE_CONT5]] ]
+// CHECK-EH-03-NEXT: resume { i8*, i32 } [[DOTPN]]
+// CHECK-EH-03: terminate.lpad:
+// CHECK-EH-03-NEXT: [[TMP4:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: catch i8* null
+// CHECK-EH-03-NEXT: [[TMP5:%.*]] = extractvalue { i8*, i32 } [[TMP4]], 0
+// CHECK-EH-03-NEXT: call void @__clang_call_terminate(i8* [[TMP5]]) #[[ATTR8]]
+// CHECK-EH-03-NEXT: unreachable
+//
+// CHECK-EH-11-LABEL: @_Z6test18i(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[Y:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: [[Z:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-11-NEXT: [[CMP:%.*]] = icmp eq i32 [[I:%.*]], 0
+// CHECK-EH-11-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[NRVO_UNUSED:%.*]]
+// CHECK-EH-11: nrvo.unused:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-11-NEXT: [[CMP1:%.*]] = icmp eq i32 [[I]], 1
+// CHECK-EH-11-NEXT: br i1 [[CMP1]], label [[IF_THEN2:%.*]], label [[CLEANUP_CONT7_CRITEDGE:%.*]]
+// CHECK-EH-11: if.then2:
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-11-NEXT: to label [[CLEANUP4:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[EH_RESUME:%.*]]
+// CHECK-EH-11: cleanup4:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[RETURN]]
+// CHECK-EH-11: cleanup.cont7.critedge:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: [[TMP2:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Z]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Z]])
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Z]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT9:%.*]] unwind label [[LPAD8:%.*]]
+// CHECK-EH-11: invoke.cont9:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Z]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[RETURN]]
+// CHECK-EH-11: lpad8:
+// CHECK-EH-11-NEXT: [[TMP3:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Z]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[EH_RESUME]]
+// CHECK-EH-11: return:
+// CHECK-EH-11-NEXT: ret void
+// CHECK-EH-11: eh.resume:
+// CHECK-EH-11-NEXT: [[DOTPN:%.*]] = phi { i8*, i32 } [ [[TMP3]], [[LPAD8]] ], [ [[TMP1]], [[LPAD]] ]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[DOTPN]]
+//
+X test18(int i) {
+ {
+ {
+ X x;
+ if (i == 0)
+ return x; // NRVO happens
+ }
+ X y;
+ if (i == 1)
+ return y; // FIXME: NRVO could happen, but doesn't
+ }
+ X z;
+ return z; // FIXME: NRVO could happen, but doesn't
+}
+
+#ifdef CXX11
+// CHECK-EH-11-LABEL: @_Z6test19v(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[L:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[L]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[L]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: invoke.cont:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[L]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: ret void
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[TMP1]]
+//
+X test19() {
+ X x;
+ struct S {
+ X f() { return X(); }
+ };
+ auto L = [&x]() { return X(); }();
+ if constexpr (false) {
+ return X();
+ }
+ return x; // NRVO happens
+}
+
+template <bool B>
+X test20() {
+ X x;
+ if constexpr (B) {
+ if (false)
+ return X();
+ }
+ return x; // FIXME: NRVO could happen if B == false, but doesn't
+}
+
+// CHECK-EH-11-LABEL: @_Z17test20instantiatev(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[X_I2:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: [[X_I:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-11-NEXT: [[AGG_TMP_ENSURED:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-11-NEXT: [[AGG_TMP_ENSURED1:%.*]] = alloca [[CLASS_X]], align 1
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X_I]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]], !noalias !6
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X_I]]), !noalias !6
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_TMP_ENSURED]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X_I]])
+// CHECK-EH-11-NEXT: to label [[_Z6TEST20ILB1EE1XV_EXIT:%.*]] unwind label [[LPAD_I:%.*]]
+// CHECK-EH-11: common.resume:
+// CHECK-EH-11-NEXT: [[COMMON_RESUME_OP:%.*]] = phi { i8*, i32 } [ [[TMP1:%.*]], [[LPAD_I]] ], [ [[TMP3:%.*]], [[LPAD_I3:%.*]] ]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[COMMON_RESUME_OP]]
+// CHECK-EH-11: lpad.i:
+// CHECK-EH-11-NEXT: [[TMP1]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X_I]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]], !noalias !6
+// CHECK-EH-11-NEXT: br label [[COMMON_RESUME:%.*]]
+// CHECK-EH-11: _Z6test20ILb1EE1Xv.exit:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X_I]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]], !noalias !6
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_TMP_ENSURED]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: [[TMP2:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X_I2]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]], !noalias !9
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X_I2]]), !noalias !9
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_TMP_ENSURED1]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X_I2]])
+// CHECK-EH-11-NEXT: to label [[_Z6TEST20ILB0EE1XV_EXIT:%.*]] unwind label [[LPAD_I3]]
+// CHECK-EH-11: lpad.i3:
+// CHECK-EH-11-NEXT: [[TMP3]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X_I2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]], !noalias !9
+// CHECK-EH-11-NEXT: br label [[COMMON_RESUME]]
+// CHECK-EH-11: _Z6test20ILb0EE1Xv.exit:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X_I2]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP2]]) #[[ATTR7]], !noalias !9
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_TMP_ENSURED1]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: ret void
+//
+void test20instantiate() {
+ test20<true>();
+ test20<false>();
+}
+#endif
+
+// CHECK-LABEL: @_Z6test21v(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]]) #[[ATTR5]]
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-LABEL: @_Z6test21v(
+// CHECK-EH-NEXT: entry:
+// CHECK-EH-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-NEXT: ret void
+//
+const volatile X test21() {
+ X x;
+ return x; // NRVO happens
+}
+
+// CHECK-LABEL: @_Z6test22v(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1ERVKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-03-LABEL: @_Z6test22v(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-03-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERVKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-03: invoke.cont:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: ret void
+// CHECK-EH-03: lpad:
+// CHECK-EH-03-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT1:%.*]] unwind label [[TERMINATE_LPAD:%.*]]
+// CHECK-EH-03: invoke.cont1:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: resume { i8*, i32 } [[TMP1]]
+// CHECK-EH-03: terminate.lpad:
+// CHECK-EH-03-NEXT: [[TMP2:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: catch i8* null
+// CHECK-EH-03-NEXT: [[TMP3:%.*]] = extractvalue { i8*, i32 } [[TMP2]], 0
+// CHECK-EH-03-NEXT: call void @__clang_call_terminate(i8* [[TMP3]]) #[[ATTR8]]
+// CHECK-EH-03-NEXT: unreachable
+//
+// CHECK-EH-11-LABEL: @_Z6test22v(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[X:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[X]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERVKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]], %class.X* noundef nonnull align 1 dereferenceable(1) [[X]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: invoke.cont:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: ret void
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[X]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[TMP1]]
+//
+X test22() {
+ volatile X x;
+ return x; // NRVO is impossible
+}
+
+// CHECK-LABEL: @_Z6test23b(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[Y:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK: if.then:
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[RETURN:%.*]]
+// CHECK: if.end:
+// CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XC1ERVKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR5]]
+// CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR5]]
+// CHECK-NEXT: br label [[RETURN]]
+// CHECK: return:
+// CHECK-NEXT: ret void
+//
+// CHECK-EH-03-LABEL: @_Z6test23b(
+// CHECK-EH-03-NEXT: entry:
+// CHECK-EH-03-NEXT: [[Y:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-03-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-03: if.then:
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-03-NEXT: br label [[RETURN:%.*]]
+// CHECK-EH-03: if.end:
+// CHECK-EH-03-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: invoke void @_ZN1XC1ERVKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-03: invoke.cont:
+// CHECK-EH-03-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: br label [[RETURN]]
+// CHECK-EH-03: lpad:
+// CHECK-EH-03-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: cleanup
+// CHECK-EH-03-NEXT: invoke void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-03-NEXT: to label [[INVOKE_CONT1:%.*]] unwind label [[TERMINATE_LPAD:%.*]]
+// CHECK-EH-03: invoke.cont1:
+// CHECK-EH-03-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-03-NEXT: resume { i8*, i32 } [[TMP1]]
+// CHECK-EH-03: return:
+// CHECK-EH-03-NEXT: ret void
+// CHECK-EH-03: terminate.lpad:
+// CHECK-EH-03-NEXT: [[TMP2:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-03-NEXT: catch i8* null
+// CHECK-EH-03-NEXT: [[TMP3:%.*]] = extractvalue { i8*, i32 } [[TMP2]], 0
+// CHECK-EH-03-NEXT: call void @__clang_call_terminate(i8* [[TMP3]]) #[[ATTR8]]
+// CHECK-EH-03-NEXT: unreachable
+//
+// CHECK-EH-11-LABEL: @_Z6test23b(
+// CHECK-EH-11-NEXT: entry:
+// CHECK-EH-11-NEXT: [[Y:%.*]] = alloca [[CLASS_X:%.*]], align 1
+// CHECK-EH-11-NEXT: br i1 [[B:%.*]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
+// CHECK-EH-11: if.then:
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-11-NEXT: br label [[RETURN:%.*]]
+// CHECK-EH-11: if.end:
+// CHECK-EH-11-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[CLASS_X]], %class.X* [[Y]], i32 0, i32 0
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.start.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-11-NEXT: invoke void @_ZN1XC1ERVKS_(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT]], %class.X* noundef nonnull align 1 dereferenceable(1) [[Y]])
+// CHECK-EH-11-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]]
+// CHECK-EH-11: invoke.cont:
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: br label [[RETURN]]
+// CHECK-EH-11: lpad:
+// CHECK-EH-11-NEXT: [[TMP1:%.*]] = landingpad { i8*, i32 }
+// CHECK-EH-11-NEXT: cleanup
+// CHECK-EH-11-NEXT: call void @_ZN1XD1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[Y]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: call void @llvm.lifetime.end.p0i8(i64 1, i8* nonnull [[TMP0]]) #[[ATTR7]]
+// CHECK-EH-11-NEXT: resume { i8*, i32 } [[TMP1]]
+// CHECK-EH-11: return:
+// CHECK-EH-11-NEXT: ret void
+//
+X test23(bool b) {
+ if (b) {
+ const X x;
+ return x; // NRVO happens
+ }
+ volatile X y;
+ return y; // NRVO is impossible
+}
+
+#ifdef __EXCEPTIONS
+// CHECK-EH-LABEL: @_Z6test24v(
+// CHECK-EH-NEXT: entry:
+// CHECK-EH-NEXT: call void @_ZN1XC1Ev(%class.X* noundef nonnull align 1 dereferenceable(1) [[AGG_RESULT:%.*]])
+// CHECK-EH-NEXT: ret void
+//
+X test24() {
+ X x;
+ if (&x == &OuterX)
+ throw 0;
+ return x; // NRVO happens
+}
+#endif