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aee4925507
Based on post-commit review discussion on 2bd84938470bf2e337801faafb8a67710f46429d with Richard Smith. Other uses of forcing HasEmptyPlaceHolder to false seem OK to me - they're all around pointer/reference types where the pointer/reference token will appear at the rightmost side of the left side of the type name, so they make nested types (eg: the "int" in "int *") behave as though there is a non-empty placeholder (because the "*" is essentially the placeholder as far as the "int" is concerned). This was originally committed in 277623f4d5a672d707390e2c3eaf30a9eb4b075c Reverted in f9ad1d1c775a8e264bebc15d75e0c6e5c20eefc7 due to breakages outside of clang - lldb seems to have some strange/strong dependence on "char [N]" versus "char[N]" when printing strings (not due to that name appearing in DWARF, but probably due to using clang to stringify type names) that'll need to be addressed, plus a few other odds and ends in other subprojects (clang-tools-extra, compiler-rt, etc).
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
// RUN: %clang_cc1 -fno-rtti -emit-llvm-only -triple i686-pc-win32 -fms-extensions -fdump-record-layouts -fsyntax-only %s 2>/dev/null \
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// RUN: | FileCheck %s
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// RUN: %clang_cc1 -fno-rtti -emit-llvm-only -triple x86_64-pc-win32 -fms-extensions -fdump-record-layouts -fsyntax-only %s 2>/dev/null \
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// RUN: | FileCheck %s
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struct EmptyIntMemb {
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int FlexArrayMemb[0];
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};
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct EmptyIntMemb
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// CHECK-NEXT: 0 | int[0] FlexArrayMemb
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// CHECK-NEXT: | [sizeof=4, align=4
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struct EmptyLongLongMemb {
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long long FlexArrayMemb[0];
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};
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct EmptyLongLongMemb
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// CHECK-NEXT: 0 | long long[0] FlexArrayMemb
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// CHECK-NEXT: | [sizeof=4, align=8
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struct EmptyAligned2LongLongMemb {
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long long __declspec(align(2)) FlexArrayMemb[0];
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};
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct EmptyAligned2LongLongMemb
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// CHECK-NEXT: 0 | long long[0] FlexArrayMemb
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// CHECK-NEXT: | [sizeof=4, align=8
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struct EmptyAligned8LongLongMemb {
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long long __declspec(align(8)) FlexArrayMemb[0];
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};
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct EmptyAligned8LongLongMemb
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// CHECK-NEXT: 0 | long long[0] FlexArrayMemb
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// CHECK-NEXT: | [sizeof=8, align=8
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#pragma pack(1)
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struct __declspec(align(4)) EmptyPackedAligned4LongLongMemb {
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long long FlexArrayMemb[0];
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};
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#pragma pack()
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct EmptyPackedAligned4LongLongMemb
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// CHECK-NEXT: 0 | long long[0] FlexArrayMemb
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// CHECK-NEXT: | [sizeof=4, align=4
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#pragma pack(1)
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struct EmptyPackedAligned8LongLongMemb {
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long long __declspec(align(8)) FlexArrayMemb[0];
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};
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#pragma pack()
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// CHECK: *** Dumping AST Record Layout
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// CHECK-NEXT: 0 | struct EmptyPackedAligned8LongLongMemb
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// CHECK-NEXT: 0 | long long[0] FlexArrayMemb
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// CHECK-NEXT: | [sizeof=8, align=8
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int a[
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sizeof(struct EmptyIntMemb)+
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sizeof(struct EmptyLongLongMemb)+
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sizeof(struct EmptyAligned2LongLongMemb)+
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sizeof(struct EmptyAligned8LongLongMemb)+
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sizeof(struct EmptyPackedAligned4LongLongMemb)+
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sizeof(struct EmptyPackedAligned8LongLongMemb)+
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0];
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