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| author | Marek Polacek <polacek@redhat.com> | 2015-12-01 15:47:34 +0000 |
|---|---|---|
| committer | Marek Polacek <mpolacek@gcc.gnu.org> | 2015-12-01 15:47:34 +0000 |
| commit | 4bc84763c0b0ac41951f66cd11fb1c27197a03dd (patch) | |
| tree | 91801269e927ed16e5862710ebf42ca99c6ea900 | |
| parent | 8b6ab677a214c9ae86ab4644af573b93bfd84b03 (diff) | |
| download | gcc-4bc84763c0b0ac41951f66cd11fb1c27197a03dd.zip gcc-4bc84763c0b0ac41951f66cd11fb1c27197a03dd.tar.gz gcc-4bc84763c0b0ac41951f66cd11fb1c27197a03dd.tar.bz2 | |
re PR tree-optimization/67916 (wrong code at -O3 on x86_64-linux-gnu)
PR tree-optimization/67916
* gcc.dg/torture/pr67916.c: New test.
From-SVN: r231117
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr67916.c | 46 |
2 files changed, 51 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index addc481..e009034 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2015-12-01 Marek Polacek <polacek@redhat.com> + PR tree-optimization/67916 + * gcc.dg/torture/pr67916.c: New test. + +2015-12-01 Marek Polacek <polacek@redhat.com> + PR middle-end/68582 * c-c++-common/pr68582.c: New test. diff --git a/gcc/testsuite/gcc.dg/torture/pr67916.c b/gcc/testsuite/gcc.dg/torture/pr67916.c new file mode 100644 index 0000000..88541f9 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr67916.c @@ -0,0 +1,46 @@ +/* PR tree-optimization/67916 */ +/* { dg-do run } */ + +int a[6], b = 1, d, e; +long long c; +static int f = 1; + +void +fn1 (int p1) +{ + b = (b >> 1) & (1 ^ a[(1 ^ p1) & 5]); +} + +void +fn2 () +{ + b = (b >> 1) & (1 ^ a[(b ^ 1) & 1]); + fn1 (c >> 1 & 5); + fn1 (c >> 2 & 5); + fn1 (c >> 4 & 5); + fn1 (c >> 8 & 5); +} + +int +main () +{ + int i, j; + for (; d;) + { + for (; e;) + fn2 (); + f = 0; + } + for (i = 0; i < 8; i++) + { + if (f) + i = 9; + for (j = 0; j < 7; j++) + fn2 (); + } + + if (b != 0) + __builtin_abort (); + + return 0; +} |