commit 807b755357c4eb03260d229f4a851009fe058e51 Author: Tobias Burnus Date: Thu Oct 20 19:20:36 2022 +0200 omp-oacc-kernels-decompose.cc: fix -fcompare-debug with GIMPLE_DEBUG GIMPLE_DEBUG were put in a parallel region of its own, which is not only pointless but also breaks -fcompare-debug. With this commit, they are handled like simple assignments: those placed are places into the same body as the loop such that only one parallel region remains as without debugging. This fixes the existing testcase libgomp.oacc-c-c++-common/kernels-loop-g.c. Note: GIMPLE_DEBUG are only accepted with -fcompare-debug; if they appear otherwise, decompose_kernels_region_body rejects them with a sorry (unchanged). gcc/ * omp-oacc-kernels-decompose.cc (top_level_omp_for_in_stmt, decompose_kernels_region_body): Handle GIMPLE_DEBUG like simple assignment. --- gcc/omp-oacc-kernels-decompose.cc | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/gcc/omp-oacc-kernels-decompose.cc b/gcc/omp-oacc-kernels-decompose.cc index 4e940c1ee0f..a7e3d764d52 100644 --- a/gcc/omp-oacc-kernels-decompose.cc +++ b/gcc/omp-oacc-kernels-decompose.cc @@ -120,7 +120,8 @@ top_level_omp_for_in_stmt (gimple *stmt) for (gsi = gsi_start (body); !gsi_end_p (gsi); gsi_next (&gsi)) { gimple *body_stmt = gsi_stmt (gsi); - if (gimple_code (body_stmt) == GIMPLE_ASSIGN) + if (gimple_code (body_stmt) == GIMPLE_ASSIGN + || gimple_code (body_stmt) == GIMPLE_DEBUG) continue; else if (gimple_code (body_stmt) == GIMPLE_OMP_FOR && gsi_one_before_end_p (gsi)) @@ -1398,7 +1399,7 @@ decompose_kernels_region_body (gimple *kernels_region, tree kernels_clauses) = (gimple_code (stmt) == GIMPLE_ASSIGN && TREE_CODE (gimple_assign_lhs (stmt)) == VAR_DECL && DECL_ARTIFICIAL (gimple_assign_lhs (stmt))); - if (!is_simple_assignment) + if (!is_simple_assignment && gimple_code (stmt) != GIMPLE_DEBUG) only_simple_assignments = false; } }