diff options
Diffstat (limited to 'test')
-rw-r--r-- | test/Solver/overshift-lright-by-symbolic.kquery | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/Solver/overshift-lright-by-symbolic.kquery b/test/Solver/overshift-lright-by-symbolic.kquery new file mode 100644 index 00000000..7ca6d4d5 --- /dev/null +++ b/test/Solver/overshift-lright-by-symbolic.kquery @@ -0,0 +1,26 @@ +# RUN: %kleaver %s > %t +# RUN: not grep INVALID %t + +array shift[4] : w32 -> w8 = symbolic +# ∀ x. x >= 32 → ( (2 >> x) = 0 ) +# Check we logical right overshift to zero when shifting a constant ALWAYS! + +(query [ (Ule (w32 32) (ReadLSB w32 (w32 0) shift)) ] + (Eq + (LShr w32 (w32 2) + (ReadLSB w32 (w32 0) shift) + ) + (w32 0) + ) [ ] [shift] ) + +# 64-bit version +# ∀ x. x >= 64 → ( (2 >> x) = 0 ) +array shift64[8] : w32 -> w8 = symbolic + +(query [ (Ule (w64 64) (ReadLSB w64 (w32 0) shift64)) ] + (Eq + (LShr w64 (w64 2) + (ReadLSB w64 (w32 0) shift64) + ) + (w64 0) + ) [ ] [shift64] ) |