From f35ea97de898081cb04ceaa6bca97d2b719e7c47 Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Wed, 11 May 2016 14:04:32 +0000 Subject: re PR tree-optimization/71055 (FAIL: gcc.dg/torture/pr53663-1.c -Os execution test) 2016-05-11 Richard Biener PR tree-optimization/71055 * tree-ssa-sccvn.c (vn_reference_lookup_3): When native-interpreting sth with precision not equal to access size verify we don't chop off bits. * gcc.dg/torture/pr71055.c: New testcase. From-SVN: r236122 --- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/torture/pr71055.c | 18 ++++++++++++++++++ 2 files changed, 23 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/torture/pr71055.c (limited to 'gcc/testsuite') diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 4f7f0f8..9170347 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2016-05-11 Richard Biener + PR tree-optimization/71055 + * gcc.dg/torture/pr71055.c: New testcase. + +2016-05-11 Richard Biener + PR debug/71057 * g++.dg/debug/pr71057.C: New testcase. diff --git a/gcc/testsuite/gcc.dg/torture/pr71055.c b/gcc/testsuite/gcc.dg/torture/pr71055.c new file mode 100644 index 0000000..7fe5a71 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr71055.c @@ -0,0 +1,18 @@ +/* { dg-do run } */ + +extern void abort (void); +union U { int i; _Bool b; char c; }; +void __attribute__((noinline,noclone)) +foo (union U *u) +{ + if (u->c != 0) + abort (); +} +int main() +{ + union U u; + u.i = 10; + u.b = 0; + foo (&u); + return 0; +} -- cgit v1.1