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Fangrui Song 83ea47acd7 [test] Make tests pass regardless of gnu++14/gnu++17 default 
GCC from 11 onwards defaults to -std=gnu++17 for C++ source files. We want to do the same
(https://discourse.llvm.org/t/c-objc-switch-to-gnu-17-as-the-default-dialect/64360).
Split RUN lines, adjust `-verify`, or add `__cplusplus < 201703L` or `-Wno-dynamic-exception-spec`,
so that tests will pass regardless of gnu++14/gnu++17 default.

We have a desire to mark a test compatible with multiple language standards.
There are ongoing discussions how to add markers in the long term:

* https://discourse.llvm.org/t/iterating-lit-run-lines/62596
* https://discourse.llvm.org/t/lit-run-a-run-line-multiple-times-with-different-replacements/64932

As a workaround in the short term, add lit substitutions `%std_cxx98-`,
`%std_cxx11-14`, etc. They can be used for tests which work across multiple
language standards. If a range has `n` standards, run lit multiple times, with
`LIT_CLANG_STD_GROUP=0`, `LIT_CLANG_STD_GROUP=1`, etc to cover all `n` standards.

Reviewed By: #clang-language-wg, aaron.ballman

Differential Revision: https://reviews.llvm.org/D131464
 		2022-09-04 05:29:32 +00:00
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aix-Wpacked-expecting-diagnostics.cpp Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
aix-Wpacked-no-diagnostics.cpp
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aix-bitfield-alignment.c [PowerPC][AIX] Fix Zero-width bit fields wrt MaxFieldAlign. 2021-07-12 15:31:15 -04:00
aix-bitfield-alignment.cpp [clang] Implement ElaboratedType sugaring for types written bare 2022-07-27 11:10:54 +02:00
aix-double-struct-member.cpp Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
aix-no-unique-address-with-double.cpp Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
aix-pack-attr-on-base.cpp
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aix-packed-bitfields.c [PowerPC][AIX] Packed zero-width bitfields do not affect alignment. 2021-08-04 11:03:25 -04:00
aix-power-alignment-typedef-2.cpp [AIX] Check for typedef properly when getting preferred type align 2021-09-08 16:21:52 -04:00
aix-power-alignment-typedef.cpp [clang] Implement ElaboratedType sugaring for types written bare 2022-07-27 11:10:54 +02:00
aix-power-natural-interaction.cpp
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aix-type-align-and-pack-attr.cpp [AIX] "aligned" attribute does not decrease alignment 2021-08-29 21:33:05 -04:00
aix-virtual-function-and-base-with-double.cpp
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dump-canonical.cpp [clang] Implement ElaboratedType sugaring for types written bare 2022-07-27 11:10:54 +02:00
dump-complete.cpp [clang] Add cc1 option for dumping layout for all complete types 2021-06-22 16:27:26 -04:00
itanium-pack-and-align.cpp
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itanium-union-bitfield.cpp [SystemZ][z/OS] fix lit test related to alignment 2021-03-23 13:15:19 -04:00
ms-aligned-array.c Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
ms-vtordisp-local.cpp
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ms-x86-alias-avoidance-padding.cpp
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ms-x86-aligned-tail-padding.cpp
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ms-x86-basic-layout.cpp [clang] Implement ElaboratedType sugaring for types written bare 2022-07-27 11:10:54 +02:00
ms-x86-bitfields-vbases.cpp
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ms-x86-declspec-empty_bases.cpp
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ms-x86-empty-base-after-base-with-vbptr.cpp
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ms-x86-empty-layout.c Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
ms-x86-empty-nonvirtual-bases.cpp Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
ms-x86-empty-virtual-base.cpp Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
ms-x86-lazy-empty-nonvirtual-base.cpp Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
ms-x86-member-pointers.cpp
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ms-x86-misalignedarray.cpp [clang] Implement ElaboratedType sugaring for types written bare 2022-07-27 11:10:54 +02:00
ms-x86-pack-and-align.cpp Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
ms-x86-primary-bases.cpp
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ms-x86-size-alignment-fail.cpp
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ms-x86-vfvb-alignment.cpp
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ms-x86-vfvb-sharing.cpp
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ms-x86-vtordisp.cpp [test] Make tests pass regardless of gnu++14/gnu++17 default 2022-09-04 05:29:32 +00:00
ms_struct-bitfields.c
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no-unique-address.cpp Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00
v6-empty.cpp
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watchos-standard-layout.cpp Recommit: Compress formatting of array type names (int [4] -> int[4]) 2021-10-21 11:34:43 -07:00