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| author | Lorry <lorry@roadtrain.codethink.co.uk> | 2012-01-09 13:47:42 +0000 |
|---|---|---|
| committer | Lorry <lorry@roadtrain.codethink.co.uk> | 2012-01-09 13:47:42 +0000 |
| commit | b4a5df67f1382a33f4535eb1b10600ca52d294d3 (patch) | |
| tree | d4571b191c2cfc0f5045bd27b54f8a48e70787a8 /gcc/testsuite/gcc.dg/pure-1.c | |
| download | gcc-tarball-b4a5df67f1382a33f4535eb1b10600ca52d294d3.tar.gz | |
Tarball conversion
Diffstat (limited to 'gcc/testsuite/gcc.dg/pure-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pure-1.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pure-1.c b/gcc/testsuite/gcc.dg/pure-1.c new file mode 100644 index 0000000000..f365c8dae3 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pure-1.c @@ -0,0 +1,16 @@ +/* Regression test for PR middle-end/23584 */ +/* Verify that dereferencing a volatile element in a struct causes + the function not be pure. */ + +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-ipa-pure-const" } */ + +struct test_a { volatile int a; }; + +int func_a(struct test_a *a) +{ + return a->a; +} + +/* { dg-final { scan-ipa-dump-not "found to be pure: func_a" "pure-const" } } */ +/* { dg-final { cleanup-ipa-dump "pure-const" } } */ |