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Author	SHA1	Message	Date
Krzysztof Parzyszek	871086bf7f	[flang] Avoid passing null pointers to nonnull parameters (#84785 ) Certain functions in glibc have "nonnull" attributes on pointer parameters (even in cases where passing a null pointer should be handled correctly). There are a few cases of such calls in flang: memcmp and memcpy with the length parameter set to 0. Avoid passing a null pointer to these functions, since the conflict with the nonnull attribute could cause an undefined behavior. This was detected by the undefined behavior sanitizer.	2024-03-12 07:53:57 -05:00
Slava Zakharin	668f261bfa	[flang] Make ISO_Fortran_binding.h a standalone header again. This implements the proposal from https://discourse.llvm.org/t/adding-flang-specific-header-files-to-clang/72442/6 Since ISO_Fortran_binding.h is supposed to be included from users' C/C++ codes, it would better have no dependencies on other header files. Reviewed By: PeteSteinfeld Differential Revision: https://reviews.llvm.org/D158549	2023-08-22 18:56:27 -07:00
Tom Eccles	c01937296b	[flang][runtime] Add dynamically allocated temporary storage These functions will be used as part of the HLFIR lowering for forall/where. The contents of the API were requested by @jeanPerier. The API is designed around that use case, assuming that the caller knows through some side channel what size to allocate for boxes returned from the pop() function. Differential Revision: https://reviews.llvm.org/D150050	2023-05-18 10:48:45 +00:00

Author

SHA1

Message

Date

Krzysztof Parzyszek

871086bf7f

[flang] Avoid passing null pointers to nonnull parameters (#84785 )

Certain functions in glibc have "nonnull" attributes on pointer
parameters (even in cases where passing a null pointer should be handled
correctly). There are a few cases of such calls in flang: memcmp and
memcpy with the length parameter set to 0.

Avoid passing a null pointer to these functions, since the conflict with
the nonnull attribute could cause an undefined behavior.

This was detected by the undefined behavior sanitizer.

2024-03-12 07:53:57 -05:00

Slava Zakharin

668f261bfa

[flang] Make ISO_Fortran_binding.h a standalone header again.

This implements the proposal from
https://discourse.llvm.org/t/adding-flang-specific-header-files-to-clang/72442/6
Since ISO_Fortran_binding.h is supposed to be included from users'
C/C++ codes, it would better have no dependencies on other header
files.

Reviewed By: PeteSteinfeld

Differential Revision: https://reviews.llvm.org/D158549

2023-08-22 18:56:27 -07:00

Tom Eccles

c01937296b

[flang][runtime] Add dynamically allocated temporary storage

These functions will be used as part of the HLFIR lowering for
forall/where. The contents of the API were requested by @jeanPerier.

The API is designed around that use case, assuming that the caller knows
through some side channel what size to allocate for boxes returned from
the pop() function.

Differential Revision: https://reviews.llvm.org/D150050

2023-05-18 10:48:45 +00:00

3 Commits