From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.dg/volatile2.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/volatile2.c (limited to 'gcc/testsuite/gcc.dg/volatile2.c') diff --git a/gcc/testsuite/gcc.dg/volatile2.c b/gcc/testsuite/gcc.dg/volatile2.c new file mode 100644 index 000000000..d663123c8 --- /dev/null +++ b/gcc/testsuite/gcc.dg/volatile2.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized" } */ + +struct GTeth_desc +{ + unsigned ed_cmdsts; +}; +struct GTeth_softc +{ + struct GTeth_desc txq_desc[32]; +}; + +void foo(struct GTeth_softc *sc) +{ + /* Verify that we retain the volatileness on the + store until after optimization. */ + volatile struct GTeth_desc *p = &sc->txq_desc[0]; + p->ed_cmdsts = 0; +} + +/* { dg-final { scan-tree-dump "{v}" "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ -- cgit v1.2.3