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| author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2016-12-15 12:00:20 +0100 |
|---|---|---|
| committer | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2018-06-28 18:54:44 +0200 |
| commit | 395b4de3d5084493d4dea2da74b735cc3bb8e886 (patch) | |
| tree | 6db49fa4af6d025b9ad347267e5982caf8025bdd /validation/optim | |
| parent | cd1366255259df08c3e1508976130d978e22da48 (diff) | |
| download | sparse-dev-395b4de3d5084493d4dea2da74b735cc3bb8e886.tar.gz | |
simplify 'x ^ ~0' to '~x'
This is yet another simple identity with the potential to trigger
more simplifications.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Diffstat (limited to 'validation/optim')
| -rw-r--r-- | validation/optim/bits-not-zero.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/validation/optim/bits-not-zero.c b/validation/optim/bits-not-zero.c index ce74705e..189fe331 100644 --- a/validation/optim/bits-not-zero.c +++ b/validation/optim/bits-not-zero.c @@ -1,5 +1,6 @@ int or_not0(int a) { return a | ~0; } int and_not0(int a) { return a & ~0; } +int xor_not0(int a) { return a ^ ~0; } /* * check-name: bool-not-zero @@ -18,5 +19,12 @@ and_not0: ret.32 %arg1 +xor_not0: +.L4: + <entry-point> + not.32 %r8 <- %arg1 + ret.32 %r8 + + * check-output-end */ |