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| author | Richard Biener <rguenther@suse.de> | 2019-08-15 12:05:31 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-08-15 12:05:31 +0000 |
| commit | 84cc60bf83e03267f5794a16b3eb83508a3196ce (patch) | |
| tree | 9cc378e66cda040d94bb4964564d4ea05a9b2b7f | |
| parent | 834032457972caee7d4ae113c2201080178a229e (diff) | |
| download | gcc-84cc60bf83e03267f5794a16b3eb83508a3196ce.zip gcc-84cc60bf83e03267f5794a16b3eb83508a3196ce.tar.gz gcc-84cc60bf83e03267f5794a16b3eb83508a3196ce.tar.bz2 | |
re PR tree-optimization/91445 (After memset, logical && operator produces false result, optimization level >=O1)
2019-08-15 Richard Biener <rguenther@suse.de>
PR tree-optimization/91445
* gcc.dg/torture/pr91445.c: New testcase.
From-SVN: r274533
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr91445.c | 22 |
2 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index d076a77..a21600b 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2019-08-15 Richard Biener <rguenther@suse.de> + PR tree-optimization/91445 + * gcc.dg/torture/pr91445.c: New testcase. + +2019-08-15 Richard Biener <rguenther@suse.de> + * gcc.dg/pr80170.c: Adjust to use __SIZETYPE__. 2019-08-15 Richard Sandiford <richard.sandiford@arm.com> diff --git a/gcc/testsuite/gcc.dg/torture/pr91445.c b/gcc/testsuite/gcc.dg/torture/pr91445.c new file mode 100644 index 0000000..1d24d45 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr91445.c @@ -0,0 +1,22 @@ +/* { dg-do run } */ + +struct S { _Bool x; }; + +void +foo (struct S *s) +{ + __builtin_memset (s, 0x11, sizeof (struct S)); + s->x = 1; +} + +int +main () +{ + struct S s; + foo (&s); + char c; + __builtin_memcpy (&c, &s.x, 1); + if (c != 1) + __builtin_abort (); + return 0; +} |