35 lines · cpp
1// RUN: %clang_analyze_cc1 -analyzer-checker=optin.mpi.MPI-Checker -analyzer-output=text -verify %s2 3// MPI-Checker test file to test note diagnostics.4 5#include "MPIMock.h"6 7void doubleNonblocking() {8 double buf = 0;9 MPI_Request sendReq;10 MPI_Isend(&buf, 1, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, &sendReq); // expected-note{{Request is previously used by nonblocking call here.}}11 MPI_Irecv(&buf, 1, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, &sendReq); // expected-warning{{Double nonblocking on request 'sendReq'.}} expected-note{{Double nonblocking on request 'sendReq'.}}12 MPI_Wait(&sendReq, MPI_STATUS_IGNORE);13}14 15void missingWait() {16 double buf = 0;17 MPI_Request sendReq;18 MPI_Ireduce(MPI_IN_PLACE, &buf, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD, &sendReq); // expected-note{{Request is previously used by nonblocking call here.}}19} // expected-warning{{Request 'sendReq' has no matching wait.}} expected-note{{Request 'sendReq' has no matching wait.}}20 21// If more than 2 nonblocking calls are using a request in a sequence, they all22// point to the first call as the 'previous' call. This is because the23// BugReporterVisitor only checks for differences in state or existence of an24// entity.25void tripleNonblocking() {26 double buf = 0;27 MPI_Request sendReq;28 MPI_Isend(&buf, 1, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, &sendReq); // expected-note 2{{Request is previously used by nonblocking call here.}}29 MPI_Irecv(&buf, 1, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, &sendReq); // expected-warning{{Double nonblocking on request 'sendReq'.}} expected-note{{Double nonblocking on request 'sendReq'.}}30 31 MPI_Isend(&buf, 1, MPI_DOUBLE, 0, 0, MPI_COMM_WORLD, &sendReq); // expected-warning{{Double nonblocking on request 'sendReq'.}} expected-note{{Double nonblocking on request 'sendReq'.}}32 33 MPI_Wait(&sendReq, MPI_STATUS_IGNORE);34}35