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Diffstat (limited to 'clang/test/CodeGenCXX/partial-destruction.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/partial-destruction.cpp | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/partial-destruction.cpp b/clang/test/CodeGenCXX/partial-destruction.cpp new file mode 100644 index 0000000..f232a15 --- /dev/null +++ b/clang/test/CodeGenCXX/partial-destruction.cpp @@ -0,0 +1,172 @@ +// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - -fcxx-exceptions -fexceptions | FileCheck %s + +// Test IR generation for partial destruction of aggregates. + +void opaque(); + +// Initializer lists. +namespace test0 { + struct A { A(int); A(); ~A(); void *v; }; + void test() { + A as[10] = { 5, 7 }; + opaque(); + } + // CHECK: define void @_ZN5test04testEv() + // CHECK: [[AS:%.*]] = alloca [10 x [[A:%.*]]], align + // CHECK-NEXT: [[ENDVAR:%.*]] = alloca [[A]]* + // CHECK-NEXT: [[EXN:%.*]] = alloca i8* + // CHECK-NEXT: [[SEL:%.*]] = alloca i32 + + // Initialize. + // CHECK-NEXT: [[E_BEGIN:%.*]] = getelementptr inbounds [10 x [[A]]]* [[AS]], i64 0, i64 0 + // CHECK-NEXT: store [[A]]* [[E_BEGIN]], [[A]]** [[ENDVAR]] + // CHECK-NEXT: invoke void @_ZN5test01AC1Ei([[A]]* [[E_BEGIN]], i32 5) + // CHECK: [[E1:%.*]] = getelementptr inbounds [[A]]* [[E_BEGIN]], i64 1 + // CHECK-NEXT: store [[A]]* [[E1]], [[A]]** [[ENDVAR]] + // CHECK-NEXT: invoke void @_ZN5test01AC1Ei([[A]]* [[E1]], i32 7) + // CHECK: [[E2:%.*]] = getelementptr inbounds [[A]]* [[E1]], i64 1 + // CHECK-NEXT: store [[A]]* [[E2]], [[A]]** [[ENDVAR]] + // CHECK-NEXT: [[E_END:%.*]] = getelementptr inbounds [[A]]* [[E_BEGIN]], i64 10 + // CHECK-NEXT: br label + // CHECK: [[E_CUR:%.*]] = phi [[A]]* [ [[E2]], {{%.*}} ], [ [[E_NEXT:%.*]], {{%.*}} ] + // CHECK-NEXT: invoke void @_ZN5test01AC1Ev([[A]]* [[E_CUR]]) + // CHECK: [[E_NEXT]] = getelementptr inbounds [[A]]* [[E_CUR]], i64 1 + // CHECK-NEXT: store [[A]]* [[E_NEXT]], [[A]]** [[ENDVAR]] + // CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[E_NEXT]], [[E_END]] + // CHECK-NEXT: br i1 [[T0]], + + // Run. + // CHECK: invoke void @_Z6opaquev() + + // Normal destroy. + // CHECK: [[ED_BEGIN:%.*]] = getelementptr inbounds [10 x [[A]]]* [[AS]], i32 0, i32 0 + // CHECK-NEXT: [[ED_END:%.*]] = getelementptr inbounds [[A]]* [[ED_BEGIN]], i64 10 + // CHECK-NEXT: br label + // CHECK: [[ED_AFTER:%.*]] = phi [[A]]* [ [[ED_END]], {{%.*}} ], [ [[ED_CUR:%.*]], {{%.*}} ] + // CHECK-NEXT: [[ED_CUR]] = getelementptr inbounds [[A]]* [[ED_AFTER]], i64 -1 + // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[ED_CUR]]) + // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ED_CUR]], [[ED_BEGIN]] + // CHECK-NEXT: br i1 [[T0]], + // CHECK: ret void + + // Partial destroy for initialization. + // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) + // CHECK-NEXT: cleanup + // CHECK: [[PARTIAL_END:%.*]] = load [[A]]** [[ENDVAR]] + // CHECK-NEXT: [[T0:%.*]] = icmp eq [[A]]* [[E_BEGIN]], [[PARTIAL_END]] + // CHECK-NEXT: br i1 [[T0]], + // CHECK: [[E_AFTER:%.*]] = phi [[A]]* [ [[PARTIAL_END]], {{%.*}} ], [ [[E_CUR:%.*]], {{%.*}} ] + // CHECK-NEXT: [[E_CUR]] = getelementptr inbounds [[A]]* [[E_AFTER]], i64 -1 + // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[E_CUR]]) + // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[E_CUR]], [[E_BEGIN]] + // CHECK-NEXT: br i1 [[T0]], + + // Primary EH destructor. + // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) + // CHECK-NEXT: cleanup + // CHECK: [[E0:%.*]] = getelementptr inbounds [10 x [[A]]]* [[AS]], i32 0, i32 0 + // CHECK-NEXT: [[E_END:%.*]] = getelementptr inbounds [[A]]* [[E0]], i64 10 + // CHECK-NEXT: br label + + // Partial destructor for primary normal destructor. + // FIXME: There's some really bad block ordering here which causes + // the partial destroy for the primary normal destructor to fall + // within the primary EH destructor. + // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) + // CHECK-NEXT: cleanup + // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[ED_BEGIN]], [[ED_CUR]] + // CHECK-NEXT: br i1 [[T0]] + // CHECK: [[EDD_AFTER:%.*]] = phi [[A]]* [ [[ED_CUR]], {{%.*}} ], [ [[EDD_CUR:%.*]], {{%.*}} ] + // CHECK-NEXT: [[EDD_CUR]] = getelementptr inbounds [[A]]* [[EDD_AFTER]], i64 -1 + // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[EDD_CUR]]) + // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[EDD_CUR]], [[ED_BEGIN]] + // CHECK-NEXT: br i1 [[T0]] + + // Back to the primary EH destructor. + // CHECK: [[E_AFTER:%.*]] = phi [[A]]* [ [[E_END]], {{%.*}} ], [ [[E_CUR:%.*]], {{%.*}} ] + // CHECK-NEXT: [[E_CUR]] = getelementptr inbounds [[A]]* [[E_AFTER]], i64 -1 + // CHECK-NEXT: invoke void @_ZN5test01AD1Ev([[A]]* [[E_CUR]]) + // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[E_CUR]], [[E0]] + // CHECK-NEXT: br i1 [[T0]], + +} + +namespace test1 { + struct A { A(); A(int); ~A(); }; + struct B { A x, y, z; int w; }; + + void test() { + B v = { 5, 6, 7, 8 }; + } + // CHECK: define void @_ZN5test14testEv() + // CHECK: [[V:%.*]] = alloca [[B:%.*]], align 4 + // CHECK-NEXT: alloca i8* + // CHECK-NEXT: alloca i32 + // CHECK-NEXT: [[X:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 0 + // CHECK-NEXT: call void @_ZN5test11AC1Ei([[A:%.*]]* [[X]], i32 5) + // CHECK-NEXT: [[Y:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 1 + // CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[Y]], i32 6) + // CHECK: [[Z:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 2 + // CHECK-NEXT: invoke void @_ZN5test11AC1Ei([[A]]* [[Z]], i32 7) + // CHECK: [[W:%.*]] = getelementptr inbounds [[B]]* [[V]], i32 0, i32 3 + // CHECK-NEXT: store i32 8, i32* [[W]], align 4 + // CHECK-NEXT: call void @_ZN5test11BD1Ev([[B]]* [[V]]) + // CHECK-NEXT: ret void + + // FIXME: again, the block ordering is pretty bad here + // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) + // CHECK-NEXT: cleanup + // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) + // CHECK-NEXT: cleanup + // CHECK: invoke void @_ZN5test11AD1Ev([[A]]* [[Y]]) + // CHECK: invoke void @_ZN5test11AD1Ev([[A]]* [[X]]) +} + +namespace test2 { + struct A { A(); ~A(); }; + + void test() { + A v[4][7]; + + // CHECK: define void @_ZN5test24testEv() + // CHECK: [[V:%.*]] = alloca [4 x [7 x [[A:%.*]]]], align 1 + // CHECK-NEXT: alloca i8* + // CHECK-NEXT: alloca i32 + + // Main initialization loop. + // CHECK-NEXT: [[BEGIN:%.*]] = getelementptr inbounds [4 x [7 x [[A]]]]* [[V]], i32 0, i32 0, i32 0 + // CHECK-NEXT: [[END:%.*]] = getelementptr inbounds [[A]]* [[BEGIN]], i64 28 + // CHECK-NEXT: br label + // CHECK: [[CUR:%.*]] = phi [[A]]* [ [[BEGIN]], {{%.*}} ], [ [[NEXT:%.*]], {{%.*}} ] + // CHECK-NEXT: invoke void @_ZN5test21AC1Ev([[A]]* [[CUR]]) + // CHECK: [[NEXT:%.*]] = getelementptr inbounds [[A]]* [[CUR]], i64 1 + // CHECK-NEXT: [[DONE:%.*]] = icmp eq [[A]]* [[NEXT]], [[END]] + // CHECK-NEXT: br i1 [[DONE]], + + // Partial destruction landing pad. + // CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) + // CHECK-NEXT: cleanup + // CHECK: [[EMPTY:%.*]] = icmp eq [[A]]* [[BEGIN]], [[CUR]] + // CHECK-NEXT: br i1 [[EMPTY]], + // CHECK: [[PAST:%.*]] = phi [[A]]* [ [[CUR]], {{%.*}} ], [ [[DEL:%.*]], {{%.*}} ] + // CHECK-NEXT: [[DEL]] = getelementptr inbounds [[A]]* [[PAST]], i64 -1 + // CHECK-NEXT: invoke void @_ZN5test21AD1Ev([[A]]* [[DEL]]) + // CHECK: [[T0:%.*]] = icmp eq [[A]]* [[DEL]], [[BEGIN]] + // CHECK-NEXT: br i1 [[T0]], + } + +} + +// PR10351 +namespace test3 { + struct A { A(); ~A(); void *p; }; + struct B { + B() {} + A a; + }; + + B *test() { + return new B[10]; + // invoke void @_ZN5test31BD1Ev( + } +} |