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JohelEGP opened this issue Sep 26, 2023 · 2 comments · Fixed by #69734
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__is_trivially_relocatable of non-object type is true #67498

JohelEGP opened this issue Sep 26, 2023 · 2 comments · Fixed by #69734
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clang:frontend Language frontend issues, e.g. anything involving "Sema"

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@JohelEGP
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JohelEGP commented Sep 26, 2023 •
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See https://compiler-explorer.com/z/P9fYM9djj:

static_assert(!__is_trivially_copyable(int&));
static_assert(!__is_trivially_copyable(int()));
static_assert(__is_trivially_relocatable(int&));
static_assert(__is_trivially_relocatable(int()));
Compiler returned: 0

Here's a patch: Quuxplusone@8bd9e52.
@JohelEGP
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The updated reproducer uses __is_trivially_copyable to illustrate the inconsistency.

@EugeneZelenko EugeneZelenko added clang:frontend Language frontend issues, e.g. anything involving "Sema" and removed new issue labels Sep 27, 2023
@llvmbot
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llvmbot commented Sep 27, 2023

@llvm/issue-subscribers-clang-frontend

See <https://compiler-explorer.com/z/P9fYM9djj>: ```C++ static_assert(!__is_trivially_copyable(int&)); static_assert(!__is_trivially_copyable(int())); static_assert(__is_trivially_relocatable(int&)); static_assert(__is_trivially_relocatable(int())); ``` ```output Compiler returned: 0 ``` Here's a patch: <https://github.com/Quuxplusone/llvm-project/commit/8bd9e52829a155d1cf786458dc028d17d0545494>.

Quuxplusone added a commit to Quuxplusone/llvm-project that referenced this issue Oct 5, 2023
@Quuxplusone
[clang] Non-object types are non-trivially relocatable
a34ca54 
Both active C++ proposals (P1144 and P2786) agree that
`is_trivially_relocatable_v<int&>` and `is_trivially_relocatable_v<int()>`
should be false, not true. Only complete object types
can be trivially relocatable.

Fixes llvm#67498
Quuxplusone added a commit to Quuxplusone/llvm-project that referenced this issue Oct 15, 2023
@Quuxplusone
[clang] Non-object types are non-trivially relocatable
8782c2c 
Both active C++ proposals (P1144 and P2786) agree that
`is_trivially_relocatable_v<int&>` and `is_trivially_relocatable_v<int()>`
should be false, not true. Only complete object types
can be trivially relocatable.

Fixes llvm#67498
@AMP999 AMP999 mentioned this issue Oct 20, 2023
Merged
AMP999 added a commit to AMP999/llvm-project that referenced this issue Nov 28, 2023
@AMP999
[clang] Non-object types are non-trivially relocatable
8cad094 
Both active C++ proposals (P1144 and P2786) agree that
`is_trivially_relocatable_v<int&>` and `is_trivially_relocatable_v<int()>`
should be false, not true. Only complete object types
can be trivially relocatable.

Fixes llvm#67498
cor3ntin pushed a commit that referenced this issue Nov 28, 2023
@AMP999
[clang] Non-object types are non-trivially relocatable (#69734)
98e674c 
Both active C++ proposals (P1144 and P2786) agree that
`is_trivially_relocatable_v<int&>` and
`is_trivially_relocatable_v<int()>` should be false, not true. Only
complete object types can be trivially relocatable.

Fixes #67498
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[clang] Non-object types are non-trivially relocatable AMP999/llvm-project
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@EugeneZelenko @JohelEGP @llvmbot