160f19cdda
This commit adds a static analysis checker to verify the correct usage of the MPI API in C and C++. This version updates the reverted r271981 to fix a memory corruption found by the ASan bots. Three path-sensitive checks are included: - Double nonblocking: Double request usage by nonblocking calls without intermediate wait - Missing wait: Nonblocking call without matching wait. - Unmatched wait: Waiting for a request that was never used by a nonblocking call Examples of how to use the checker can be found at https://github.com/0ax1/MPI-Checker A patch by Alexander Droste! Reviewers: zaks.anna, dcoughlin Differential Revision: http://reviews.llvm.org/D21081 llvm-svn: 272529
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
// RUN: %clang_cc1 -analyze -analyzer-checker=optin.mpi.MPI-Checker -verify %s
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#include "MPIMock.h"
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// Use MPI-Checker to test 'getDescriptiveName', as the checker uses the
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// function for diagnostics.
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void testGetDescriptiveName() {
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int rank = 0;
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MPI_Comm_rank(MPI_COMM_WORLD, &rank);
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MPI_Request sendReq1;
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MPI_Wait(&sendReq1, MPI_STATUS_IGNORE); // expected-warning{{Request 'sendReq1' has no matching nonblocking call.}}
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}
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void testGetDescriptiveName2() {
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int rank = 0;
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MPI_Comm_rank(MPI_COMM_WORLD, &rank);
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MPI_Request sendReq1[10][10][10];
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MPI_Wait(&sendReq1[1][7][9], MPI_STATUS_IGNORE); // expected-warning{{Request 'sendReq1[1][7][9]' has no matching nonblocking call.}}
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}
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void testGetDescriptiveName3() {
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int rank = 0;
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MPI_Comm_rank(MPI_COMM_WORLD, &rank);
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typedef struct { MPI_Request req; } ReqStruct;
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ReqStruct rs;
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MPI_Request *r = &rs.req;
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MPI_Wait(r, MPI_STATUS_IGNORE); // expected-warning{{Request 'rs.req' has no matching nonblocking call.}}
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}
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void testGetDescriptiveName4() {
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int rank = 0;
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MPI_Comm_rank(MPI_COMM_WORLD, &rank);
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typedef struct { MPI_Request req[2][2]; } ReqStruct;
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ReqStruct rs;
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MPI_Request *r = &rs.req[0][1];
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MPI_Wait(r, MPI_STATUS_IGNORE); // expected-warning{{Request 'rs.req[0][1]' has no matching nonblocking call.}}
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}
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void testGetDescriptiveName5() {
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int rank = 0;
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MPI_Comm_rank(MPI_COMM_WORLD, &rank);
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typedef struct { MPI_Request req; } ReqStructInner;
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typedef struct { ReqStructInner req; } ReqStruct;
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ReqStruct rs;
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MPI_Request *r = &rs.req.req;
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MPI_Wait(r, MPI_STATUS_IGNORE); // expected-warning{{Request 'rs.req.req' has no matching nonblocking call.}}
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}
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