https://github.com/erichkeane created https://github.com/llvm/llvm-project/pull/172305
As my next patch showing how OMP lowering should work, here is a simple construct implementation. Best I can tell, the 'barrier' construct just results in a omp.barrier to be emitted into the IR. This is our first use of the omp dialect, though the dialect was already added in my last patch. >From 70c9ad4e08e03e79d43eb964c9d0d3fda87069de Mon Sep 17 00:00:00 2001 From: erichkeane <[email protected]> Date: Fri, 12 Dec 2025 06:40:25 -0800 Subject: [PATCH] [OpenMP][CIR] Implement 'barrier' lowering As my next patch showing how OMP lowering should work, here is a simple construct implementation. Best I can tell, the 'barrier' construct just results in a omp.barrier to be emitted into the IR. This is our first use of the omp dialect, though the dialect was already added in my last patch. --- clang/lib/CIR/CodeGen/CIRGenStmtOpenMP.cpp | 5 +++-- clang/test/CIR/CodeGenOpenMP/barrier.c | 14 ++++++++++++++ 2 files changed, 17 insertions(+), 2 deletions(-) create mode 100644 clang/test/CIR/CodeGenOpenMP/barrier.c diff --git a/clang/lib/CIR/CodeGen/CIRGenStmtOpenMP.cpp b/clang/lib/CIR/CodeGen/CIRGenStmtOpenMP.cpp index 7fb2dd085acd3..08eeefcbeb151 100644 --- a/clang/lib/CIR/CodeGen/CIRGenStmtOpenMP.cpp +++ b/clang/lib/CIR/CodeGen/CIRGenStmtOpenMP.cpp @@ -47,8 +47,9 @@ CIRGenFunction::emitOMPTaskyieldDirective(const OMPTaskyieldDirective &s) { } mlir::LogicalResult CIRGenFunction::emitOMPBarrierDirective(const OMPBarrierDirective &s) { - getCIRGenModule().errorNYI(s.getSourceRange(), "OpenMP OMPBarrierDirective"); - return mlir::failure(); + mlir::omp::BarrierOp::create(builder, getLoc(s.getBeginLoc())); + assert(s.clauses().empty() && "omp barrier doesn't support clauses"); + return mlir::success(); } mlir::LogicalResult CIRGenFunction::emitOMPMetaDirective(const OMPMetaDirective &s) { diff --git a/clang/test/CIR/CodeGenOpenMP/barrier.c b/clang/test/CIR/CodeGenOpenMP/barrier.c new file mode 100644 index 0000000000000..83520b26dfe05 --- /dev/null +++ b/clang/test/CIR/CodeGenOpenMP/barrier.c @@ -0,0 +1,14 @@ +// RUN: %clang_cc1 -fopenmp -emit-cir -fclangir %s -o - | FileCheck %s + +void before(void); +void after(void); + +void emit_simple_barrier() { + // CHECK: cir.func{{.*}}@emit_simple_barrier + before(); + // CHECK-NEXT: cir.call @before +#pragma omp barrier + // CHECK-NEXT: omp.barrier + after(); + // CHECK-NEXT: cir.call @after +} _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
