diff options
author | John McCall <rjmccall@apple.com> | 2011-07-11 08:38:19 +0000 |
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committer | John McCall <rjmccall@apple.com> | 2011-07-11 08:38:19 +0000 |
commit | 2673c68aa58e277ebc755b71d81aca618cdedbf9 (patch) | |
tree | bac33d78d7e725e30c528d0ac7503b7b6bf0cdaf /test/CodeGenCXX/partial-destruction.cpp | |
parent | 00d40eae546219786a74564fc0d95eab1978b82b (diff) |
Fix a lot of problems with the partial destruction of arrays:
- an off-by-one error in emission of irregular array limits for
InitListExprs
- use an EH partial-destruction cleanup within the normal
array-destruction cleanup
- get the branch destinations right for the empty check
Also some refactoring which unfortunately obscures these changes.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134890 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/partial-destruction.cpp')
-rw-r--r-- | test/CodeGenCXX/partial-destruction.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/test/CodeGenCXX/partial-destruction.cpp b/test/CodeGenCXX/partial-destruction.cpp new file mode 100644 index 0000000000..53b34d06bf --- /dev/null +++ b/test/CodeGenCXX/partial-destruction.cpp @@ -0,0 +1,90 @@ +// 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 + // CHECK-NEXT: [[CLEANUP:%.*]] = 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: llvm.eh.selector({{.*}}, i32 0) + // 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: llvm.eh.selector({{.*}}, i32 0) + // 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: llvm.eh.selector({{.*}}, i32 0) + // 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]], + +} |