https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99555
Bug ID: 99555
Summary: [OpenMP/nvptx] Execution-time hang for simple nested
OpenMP 'target'/'parallel'/'task' constructs
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: openmp
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: tschwinge at gcc dot gnu.org
CC: jakub at gcc dot gnu.org, kcy at codesourcery dot com,
vries at gcc dot gnu.org
Target Milestone: ---
Target: nvptx
Discovered during OpenMP 'task' 'detach' development. See PR98738,
<http://mid.mail-archive.com/[email protected]>;
when offloaded to nvptx, '-O0', the following hangs consistently:
#pragma omp target
#pragma omp parallel
#pragma omp task
;
This doesn't hang when offloaded to GCN or the host device, or if
'num_threads(1)' is specified on the 'parallel'.
---
Not yet determined if this is a regression, when this started.
