https://bugs.llvm.org/show_bug.cgi?id=49240
Bug ID: 49240
Summary: target update beyond range should stop instead of noop
Product: OpenMP
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Runtime Library
Assignee: unassignedb...@nondot.org
Reporter: xw111lu...@gmail.com
CC: llvm-bugs@lists.llvm.org
The runtime should stop for the following code, instead of treating the
transfer as no-op and running through.
int main()
{
int a[10];
#pragma omp target enter data map(alloc: a[:10])
#pragma omp target update to(a[:20])
#pragma omp target exit data map(delete: a[:10])
}
Libomptarget --> Looking up mapping(HstPtrBegin=0x00007ffe3fe353f0, Size=80)...
Libomptarget --> WARNING: Pointer is already mapped but section extends beyond
mapped region
Libomptarget --> hst data:0x00007ffe3fe353f0 not found, becomes a noop
Let me know if the OpenMP specification explicitly says this is the intended
behavior.
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