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Author SHA1 Message Date
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
Reid Kleckner fb93154bf1 [MS] Don't escape MS C++ names with \01 
It is not needed after LLVM r327734. Now it will be easier to copy-paste
IR symbol names from Clang.

llvm-svn: 327738
 2018-03-16 20:36:49 +00:00
Rafael Espindola 922f2aa9b2 Bring r325915 back. 
The tests that failed on a windows host have been fixed.

Original message:

Start setting dso_local for COFF.

With this there are still some GVs where we don't set dso_local
because setGVProperties is never called. I intend to fix that in
followup commits. This is just the bare minimum to teach
shouldAssumeDSOLocal what it should do for COFF.

llvm-svn: 325940
 2018-02-23 19:30:48 +00:00
Rafael Espindola 43ce3a3a4d Revert "Start setting dso_local for COFF." 
This reverts commit r325915.

It will take some time to fix the failures on a windows host.

llvm-svn: 325929
 2018-02-23 18:09:29 +00:00
Rafael Espindola 004d240b6a Start setting dso_local for COFF. 
With this there are still some GVs where we don't set dso_local
because setGVProperties is never called. I intend to fix that in
followup commits. This is just the bare minimum to teach
shouldAssumeDSOLocal what it should do for COFF.

llvm-svn: 325915
 2018-02-23 15:32:32 +00:00
David Majnemer cd5855e354 [clang-cl] /EHc should not effect functions with explicit exception specifications 
Functions with an explicit exception specification have their behavior
dictated by the specification.  The additional /EHc behavior only comes
into play if no exception specification is given.

llvm-svn: 262198
 2016-02-29 01:40:36 +00:00
David Majnemer 2ae61ee0d2 Add a test for r261425. 
llvm-svn: 261534
 2016-02-22 17:22:01 +00:00