[all-commits] [llvm/llvm-project] 2cf811: [Libomptarget] Add RPC-based `printf` implementati...

[Joseph Huber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2cf8118e3aa60f406ec41e88bdd4304f39744e89
      https://github.com/llvm/llvm-project/commit/2cf8118e3aa60f406ec41e88bdd4304f39744e89
  Author: Joseph Huber <huberjn at outlook.com>
  Date:   2024-04-02 (Tue, 02 Apr 2024)

  Changed paths:
    M openmp/libomptarget/DeviceRTL/CMakeLists.txt
    M openmp/libomptarget/DeviceRTL/src/LibC.cpp
    A openmp/libomptarget/test/libc/printf.c

  Log Message:
  -----------
  [Libomptarget] Add RPC-based `printf` implementation for OpenMP (#85638)

Summary:
This patch adds an implementation of `printf` that's provided by the GPU
C library runtime. This `pritnf` currently implemented using the same
wrapper handling that OpenMP sets up. This will be removed once we have
proper varargs support.

This `printf` differs from the one CUDA offers in that it is synchronous
and uses a finite size. Additionally we support pretty much every format
specifier except the `%n` option.

Depends on https://github.com/llvm/llvm-project/pull/85331



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