diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/reg_bounds.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/reg_bounds.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/reg_bounds.c b/tools/testing/selftests/bpf/prog_tests/reg_bounds.c index 39d42271cc46..e261b0e872db 100644 --- a/tools/testing/selftests/bpf/prog_tests/reg_bounds.c +++ b/tools/testing/selftests/bpf/prog_tests/reg_bounds.c @@ -465,6 +465,20 @@ static struct range range_refine(enum num_t x_t, struct range x, enum num_t y_t, return range_improve(x_t, x, x_swap); } + if (!t_is_32(x_t) && !t_is_32(y_t) && x_t != y_t) { + if (x_t == S64 && x.a > x.b) { + if (x.b < y.a && x.a <= y.b) + return range(x_t, x.a, y.b); + if (x.a > y.b && x.b >= y.a) + return range(x_t, y.a, x.b); + } else if (x_t == U64 && y.a > y.b) { + if (y.b < x.a && y.a <= x.b) + return range(x_t, y.a, x.b); + if (y.a > x.b && y.b >= x.a) + return range(x_t, x.a, y.b); + } + } + /* otherwise, plain range cast and intersection works */ return range_improve(x_t, x, y_cast); } |