[all-commits] [llvm/llvm-project] 9922aa: [OpenMPIRBuilder] Added `if` clause for `teams` (#...

[Shraiysh via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9922aadf9e9d1b9d10dd69882d8515757f127a91
      https://github.com/llvm/llvm-project/commit/9922aadf9e9d1b9d10dd69882d8515757f127a91
  Author: Shraiysh <Shraiysh.Vaishay at amd.com>
  Date:   2023-10-17 (Tue, 17 Oct 2023)

  Changed paths:
    M llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h
    M llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
    M llvm/unittests/Frontend/OpenMPIRBuilderTest.cpp

  Log Message:
  -----------
  [OpenMPIRBuilder] Added `if` clause for `teams` (#69139)

This patch adds support for the `if` clause on `teams` construct. The
value of the argument must be an integer value. If the value evaluates
to true (non-zero) integer, then the number of threads is determined by
`num_threads` clause (or default and ICV if `num_threads` is absent).
When the condition evaluates to false (zero), then the bounds are set to
1. ([OpenMP 5.2 Section
10.2](https://www.openmp.org/spec-html/5.2/openmpse58.html))

This essentially means that
```
upperbound = ifexpr ? upperbound : 1
lowerbound = ifexpr ? lowerbound : 1
```