diff options
| author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2021-04-17 15:14:26 +0200 |
|---|---|---|
| committer | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2021-04-17 15:14:26 +0200 |
| commit | bb4239aafe31493a395d7777de5b3c33ea06a98d (patch) | |
| tree | 0835acb4336044b006f5180616355879b1db7501 /validation/scheck | |
| parent | 2cd6d34e815a7442b0b113f395504131b3a92e77 (diff) | |
| parent | 15806a1f68178a278c7a297b163d5692fe71cbf2 (diff) | |
| download | sparse-dev-bb4239aafe31493a395d7777de5b3c33ea06a98d.tar.gz | |
Merge branch 'schecker'
* add a symbolic checker
Diffstat (limited to 'validation/scheck')
| -rw-r--r-- | validation/scheck/ko.c | 10 | ||||
| -rw-r--r-- | validation/scheck/ok.c | 22 |
2 files changed, 32 insertions, 0 deletions
diff --git a/validation/scheck/ko.c b/validation/scheck/ko.c new file mode 100644 index 00000000..dbd861ea --- /dev/null +++ b/validation/scheck/ko.c @@ -0,0 +1,10 @@ +static void ko(int x) +{ + __assert((~x) == (~0 + x)); +} + +/* + * check-name: scheck-ko + * check-command: scheck $file + * check-known-to-fail + */ diff --git a/validation/scheck/ok.c b/validation/scheck/ok.c new file mode 100644 index 00000000..1e5314f2 --- /dev/null +++ b/validation/scheck/ok.c @@ -0,0 +1,22 @@ +static void ok(int x) +{ + __assert((~x) == (~0 - x)); // true but not simplified yet + __assert_eq(~x, ~0 - x); + __assert_const(x & 0, 0); +} + +static void always(int x) +{ + __assert((x - x) == 0); // true and simplified +} + +static void assumed(int x, int a, int b) +{ + __assume((a & ~b) == 0); + __assert_eq((x ^ a) | b, x | b); +} + +/* + * check-name: scheck-ok + * check-command: scheck $file + */ |