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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/volatile2.c | |
| download | cbb-gcc-4.6.4-upstream.tar.bz2 cbb-gcc-4.6.4-upstream.tar.xz | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/volatile2.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/volatile2.c | 22 |
1 files changed, 22 insertions, 0 deletions
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" } } */ |