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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/libgomp/testsuite/libgomp.c/appendix-a/a.2.1.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/libgomp/testsuite/libgomp.c/appendix-a/a.2.1.c')
-rw-r--r-- | gcc-4.9/libgomp/testsuite/libgomp.c/appendix-a/a.2.1.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gcc-4.9/libgomp/testsuite/libgomp.c/appendix-a/a.2.1.c b/gcc-4.9/libgomp/testsuite/libgomp.c/appendix-a/a.2.1.c new file mode 100644 index 000000000..f6ae4c7c5 --- /dev/null +++ b/gcc-4.9/libgomp/testsuite/libgomp.c/appendix-a/a.2.1.c @@ -0,0 +1,45 @@ +/* { dg-do run } */ + +#include <stdio.h> +#include <omp.h> +extern void abort (void); +int +main () +{ + int bad, x; + x = 2; + bad = 0; +#pragma omp parallel num_threads(2) shared(x, bad) + { + if (omp_get_thread_num () == 0) + { + volatile int i; + for (i = 0; i < 100000000; i++) + x = 5; + } + else + { + /* Print 1: the following read of x has a race */ + if (x != 2 && x != 5) + bad = 1; + } +#pragma omp barrier + if (omp_get_thread_num () == 0) + { + /* x must be 5 now. */ + if (x != 5) + bad = 1; + } + else + { + /* x must be 5 now. */ + if (x != 5) + bad = 1; + } + } + + if (bad) + abort (); + + return 0; +} |