1 // RUN: %clang_analyze_cc1 -analyzer-checker=optin.mpi.MPI-Checker -analyzer-output=text -verify %s
2
3 // MPI-Checker test file to test note diagnostics.
4
5 #include "MPIMock.h"
6
doubleNonblocking()7 void 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
missingWait()15 void 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 all
22 // point to the first call as the 'previous' call. This is because the
23 // BugReporterVisitor only checks for differences in state or existence of an
24 // entity.
tripleNonblocking()25 void 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