diff options
| author | jconner <jconner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-09-14 21:34:37 +0000 |
|---|---|---|
| committer | jconner <jconner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-09-14 21:34:37 +0000 |
| commit | 454ca2054a3d2e71c84c3999f9d73f516eedd1b8 (patch) | |
| tree | c02eb0c829ecf7fa0d1b548fec3df701eb63324f /gcc/testsuite/gcc.dg | |
| parent | 94dc8d577cb0120d267807912d33d8b420c374d2 (diff) | |
| download | gcc-454ca2054a3d2e71c84c3999f9d73f516eedd1b8.tar.gz | |
PR middle-end/23584
* gcc.dg/pr23584.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@104284 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.dg')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr23584.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr23584.c b/gcc/testsuite/gcc.dg/pr23584.c new file mode 100644 index 00000000000..691a11956ba --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr23584.c @@ -0,0 +1,21 @@ +/* Regression test for PR middle-end/23584 */ +/* Verify that dereferencing an absolute address inside of a function + makes that function impure. */ + +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-ipa-pure-const" } */ + +int test1 (void) +{ + return * (volatile int *) 0x1234; +} + +int test2 (void) +{ + int local = * (volatile int *) 0x1234; + return local; +} + +/* { dg-final { scan-ipa-dump-not "found to be pure: test1" "pure-const" } } */ +/* { dg-final { scan-ipa-dump-not "found to be pure: test2" "pure-const" } } */ +/* { dg-final { cleanup-ipa-dump "pure-const" } } */ |