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| author | Anders Carlsson <andersca@mac.com> | 2010-10-31 20:41:46 +0000 |
|---|---|---|
| committer | Anders Carlsson <andersca@mac.com> | 2010-10-31 20:41:46 +0000 |
| commit | 5c5a764fcd256df6f6cfbce5cdd2a2dfb2c45e95 (patch) | |
| tree | 83a012face3ac7a9c9e9d6a6c0dfce46c65e8fe7 /test/CodeGenCXX/global-init.cpp | |
| parent | 739830d278b0a174edc59edcfedaecec53d36e3f (diff) | |
Teach the constant expr evaluator about derived-to-base casts when no virtual bases are involved. Fixes PR5974.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117868 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/global-init.cpp')
| -rw-r--r-- | test/CodeGenCXX/global-init.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/CodeGenCXX/global-init.cpp b/test/CodeGenCXX/global-init.cpp index 6ff9598afc..f89e978131 100644 --- a/test/CodeGenCXX/global-init.cpp +++ b/test/CodeGenCXX/global-init.cpp @@ -17,6 +17,11 @@ struct D { ~D(); }; // It's okay if we ever implement the IR-generation optimization to remove this. // CHECK: @_ZN5test3L3varE = internal constant i8* getelementptr inbounds ([7 x i8]* +// PR6205: The casts should not require global initializers +// CHECK: @_ZN6PR59741cE = external global %"struct.PR5974::C" +// CHECK: @_ZN6PR59741aE = global %"struct.PR5974::A"* bitcast (%"struct.PR5974::C"* @_ZN6PR59741cE to %"struct.PR5974::A"*), align 8 +// CHECK: @_ZN6PR59741bE = global %"struct.PR5974::A"* bitcast (i8* getelementptr (%"struct.PR5974::C"* @_ZN6PR59741cE, i32 0, i32 0, i64 4) to %"struct.PR5974::A"*), align 8 + // CHECK: call void @_ZN1AC1Ev(%struct.A* @a) // CHECK: call i32 @__cxa_atexit(void (i8*)* bitcast (void (%struct.A*)* @_ZN1AD1Ev to void (i8*)*), i8* getelementptr inbounds (%struct.A* @a, i32 0, i32 0), i8* bitcast (i8** @__dso_handle to i8*)) A a; @@ -64,6 +69,17 @@ namespace test3 { const char *test() { return var; } } +namespace PR5974 { + struct A { int a; }; + struct B { int b; }; + struct C : A, B { int c; }; + + extern C c; + + // These should not require global initializers. + A* a = &c; + B* b = &c; +} // CHECK: define internal void [[TEST1_Z_INIT:@.*]]() // CHECK: load i32* @_ZN5test1L1yE // CHECK-NEXT: xor |