05ad8e9429
Implement AIX default `power` alignment rule by adding `PreferredAlignment` and `PreferredNVAlignment` in ASTRecordLayout class. The patchh aims at returning correct value for `__alignof(x)` and `alignof(x)` under `power` alignment rules. Differential Revision: https://reviews.llvm.org/D79719
31 lines
916 B
C++
31 lines
916 B
C++
// RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -Wpacked \
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// RUN: -fdump-record-layouts -fsyntax-only -verify -x c++ < %s | \
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// RUN: FileCheck %s
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// RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -Wpacked \
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// RUN: -fdump-record-layouts -fsyntax-only -verify -x c++ < %s | \
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// RUN: FileCheck %s
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struct A {
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double d;
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};
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struct B {
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char x[8];
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};
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struct [[gnu::packed]] C : B, A { // expected-warning{{packed attribute is unnecessary for 'C'}}
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char x alignas(4)[8];
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};
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int b = sizeof(C);
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// CHECK: 0 | struct C
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// CHECK-NEXT: 0 | struct B (base)
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// CHECK-NEXT: 0 | char [8] x
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// CHECK-NEXT: 8 | struct A (base)
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// CHECK-NEXT: 8 | double d
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// CHECK-NEXT: 16 | char [8] x
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// CHECK-NEXT: | [sizeof=24, dsize=24, align=4, preferredalign=4,
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// CHECK-NEXT: | nvsize=24, nvalign=4, preferrednvalign=4]
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