diff options
Diffstat (limited to 'test/prove.go')
| -rw-r--r-- | test/prove.go | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/test/prove.go b/test/prove.go index d37021d283..83b0380838 100644 --- a/test/prove.go +++ b/test/prove.go @@ -629,6 +629,22 @@ func trans3(a, b []int, i int) { _ = b[i] // ERROR "Proved IsInBounds$" } +func trans4(b []byte, x int) { + // Issue #42603: slice len/cap transitive relations. + switch x { + case 0: + if len(b) < 20 { + return + } + _ = b[:2] // ERROR "Proved IsSliceInBounds$" + case 1: + if len(b) < 40 { + return + } + _ = b[:2] // ERROR "Proved IsSliceInBounds$" + } +} + // Derived from nat.cmp func natcmp(x, y []uint) (r int) { m := len(x) @@ -997,7 +1013,7 @@ func sh64noopt(n int64) int64 { // opt, an earlier pass, has already replaced it. // The fix for this issue allows prove to zero a right shift that was added as // part of the less-than-optimal reqwrite. That change by prove then allows -// lateopt to clean up all the unneccesary parts of the original division +// lateopt to clean up all the unnecessary parts of the original division // replacement. See issue #36159. func divShiftClean(n int) int { if n < 0 { |