[all-commits] [llvm/llvm-project] bef7c1: [OpenACC] 'reduction' init lowering for +, |, ^, |...

[Erich Keane via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bef7c1bdff1a701ede9ac349505a82048030b46c
      https://github.com/llvm/llvm-project/commit/bef7c1bdff1a701ede9ac349505a82048030b46c
  Author: Erich Keane <ekeane at nvidia.com>
  Date:   2025-08-29 (Fri, 29 Aug 2025)

  Changed paths:
    M clang/include/clang/Sema/SemaOpenACC.h
    M clang/lib/CIR/CodeGen/CIRGenOpenACCClause.cpp
    M clang/lib/Sema/SemaOpenACC.cpp
    M clang/lib/Sema/SemaOpenACCClause.cpp
    M clang/lib/Sema/TreeTransform.h
    M clang/test/CIR/CodeGenOpenACC/combined-reduction-clause-default-ops.cpp
    M clang/test/CIR/CodeGenOpenACC/combined-reduction-clause-float.cpp
    M clang/test/CIR/CodeGenOpenACC/combined-reduction-clause-inline-ops.cpp
    M clang/test/CIR/CodeGenOpenACC/combined-reduction-clause-int.cpp
    M clang/test/CIR/CodeGenOpenACC/combined-reduction-clause-outline-ops.cpp
    M clang/test/CIR/CodeGenOpenACC/compute-reduction-clause-default-ops.c
    M clang/test/CIR/CodeGenOpenACC/compute-reduction-clause-default-ops.cpp
    M clang/test/CIR/CodeGenOpenACC/compute-reduction-clause-float.c
    M clang/test/CIR/CodeGenOpenACC/compute-reduction-clause-float.cpp
    M clang/test/CIR/CodeGenOpenACC/compute-reduction-clause-inline-ops.cpp
    M clang/test/CIR/CodeGenOpenACC/compute-reduction-clause-int.c
    M clang/test/CIR/CodeGenOpenACC/compute-reduction-clause-int.cpp
    M clang/test/CIR/CodeGenOpenACC/compute-reduction-clause-outline-ops.cpp
    M clang/test/CIR/CodeGenOpenACC/loop-reduction-clause-default-ops.cpp
    M clang/test/CIR/CodeGenOpenACC/loop-reduction-clause-float.cpp
    M clang/test/CIR/CodeGenOpenACC/loop-reduction-clause-inline-ops.cpp
    M clang/test/CIR/CodeGenOpenACC/loop-reduction-clause-int.cpp
    M clang/test/CIR/CodeGenOpenACC/loop-reduction-clause-outline-ops.cpp

  Log Message:
  -----------
  [OpenACC] 'reduction' init lowering for +, |, ^, || (#155924)

These four operators have an initial value of 0, so they are able to use
C/C++ 'zero init'. This patch adds the infrastructure to the Sema init
calculations to differentiate based on the reduction operator, then
enables emission of the inits in CodeGen (which should work for all
    inits, once generated).

The rest of this test is just updating validation to make sure that the
inits happen correctly for all 4 operators.



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