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[flang] Document experimental support for multi-image features#178011

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ktras merged 2 commits into
llvm:mainfrom
BerkeleyLab:document-multi-image-support-status
Jan 28, 2026
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[flang] Document experimental support for multi-image features#178011
ktras merged 2 commits into
llvm:mainfrom
BerkeleyLab:document-multi-image-support-status

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@bonachea

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… multi-image features

Annotate the F2018 multi-image features that now have experimental support.

Sort the list to group related features with experiemental support.
@llvmbot llvmbot added the flang Flang issues not falling into any other category label Jan 26, 2026
@bonachea bonachea requested review from JDPailleux and ktras January 26, 2026 18:11

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LGTM

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LGTM

@tmjbios

tmjbios commented Jan 28, 2026

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Is PRIF considered the "official" Coarray implementation for Flang?

@bonachea

bonachea commented Jan 28, 2026

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Is PRIF considered the "official" Coarray implementation for Flang?

Hi @tmjbios - I'm not sure I understand the implications of your question, but I'm pretty sure this PR is the wrong place to debate project road map. The point of this PR is simply to document the current state of the implementation, where PRIF is currently the sole runtime interface for (experimental) multi-image features (see PRs linked in the PR description). Also note that PRIF is an open standard interface, not a specific implementation. This flang documentation should of course continue to evolve along with the compiler to reflect any future changes.

Separate from this PR, let's plan to discuss your question in an upcoming flang call?

@ktras ktras merged commit a580383 into llvm:main Jan 28, 2026
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@ktras ktras deleted the document-multi-image-support-status branch January 28, 2026 18:11
@bonachea bonachea added this to the LLVM 22.x Release milestone Jan 28, 2026
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/cherry-pick a580383

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llvmbot commented Jan 28, 2026

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/pull-request #178478

c-rhodes pushed a commit to llvmbot/llvm-project that referenced this pull request Jan 29, 2026
…178011)

This PR updates flang's Fortran standard conformance documentation to
reflect the recent addition of experimental support for multi-image
features.

PRs implementing that support include:
* llvm#151675
* llvm#154081
* llvm#154770
* llvm#154166
* llvm#165573

(cherry picked from commit a580383)
honeygoyal pushed a commit to honeygoyal/llvm-project that referenced this pull request Jan 30, 2026
…178011)

This PR updates flang's Fortran standard conformance documentation to
reflect the recent addition of experimental support for multi-image
features.

PRs implementing that support include:
* llvm#151675
* llvm#154081
* llvm#154770
* llvm#154166
* llvm#165573
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