Files
lean4/tests/elab/compiler_bug_neutral.lean
Garmelon 08eb78a5b2 chore: switch to new test/bench suite (#12590)
This PR sets up the new integrated test/bench suite. It then migrates
all benchmarks and some related tests to the new suite. There's also
some documentation and some linting.

For now, a lot of the old tests are left alone so this PR doesn't become
even larger than it already is. Eventually, all tests should be migrated
to the new suite though so there isn't a confusing mix of two systems.
2026-02-25 13:51:53 +00:00

27 lines
772 B
Lean4

/-!
This test guards against a constant folding bug
-/
def danger : UInt64 := UInt64.ofNat UInt64.size - 1
theorem danger_eq_large : danger = 18446744073709551615 := by decide +kernel
/--
error: Tactic `native_decide` evaluated that the proposition
danger = 1
is false
-/
#guard_msgs in
theorem danger_eq_one : danger = 1 := by native_decide
theorem bad : False := by simpa using danger_eq_large.symm.trans danger_eq_one
def danger2 (x : Nat) : Nat := 0 - x
theorem danger2_eq_zero : danger2 1 = 0 := by decide +kernel
/--
error: Tactic `native_decide` evaluated that the proposition
danger2 1 = 1
is false
-/
#guard_msgs in
theorem danger2_eq_one : danger2 1 = 1 := by native_decide
theorem bad2 : False := by simpa using danger2_eq_zero.symm.trans danger2_eq_one