76edf72501
Member pointers refer to data or function members of a `CXXRecordDecl`, which require a `MSInheritanceAttr` in order to be complete. Without that we cannot calculate the size of a member pointer in memory. The attempt has been causing a crash further down in the clang AST context. In order to implement the feature, DWARF will need a new attribtue to convey the information. For the moment, this patch teaches LLDB to handle to situation and avoid the crash.
25 lines
822 B
C++
25 lines
822 B
C++
// REQUIRES: lld
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// Itanium ABI:
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// RUN: %clang --target=x86_64-pc-linux -gdwarf -c -o %t_linux.o %s
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// RUN: %lldb -f %t_linux.o -b -o "target variable mp" | FileCheck %s
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//
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// CHECK: (char SI::*) mp = 0x0000000000000000
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// Microsoft ABI:
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// RUN: %clang_cl --target=x86_64-windows-msvc -c -gdwarf -o %t_win.obj -- %s
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// RUN: lld-link /out:%t_win.exe %t_win.obj /nodefaultlib /entry:main /debug
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// RUN: %lldb -f %t_win.exe -b -o "target variable mp" | FileCheck --check-prefix=CHECK-MSVC %s
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//
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// DWARF has no representation of MSInheritanceAttr, so we cannot determine the size
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// of member-pointers yet. For the moment, make sure we don't crash on such variables.
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// CHECK-MSVC: error: Unable to determine byte size.
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struct SI {
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char si;
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};
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char SI::*mp = &SI::si;
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int main() { return 0; }
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