diff options
Diffstat (limited to 'tools/perf/util/expr.y')
| -rw-r--r-- | tools/perf/util/expr.y | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y index 635e562350c5..250e444bf032 100644 --- a/tools/perf/util/expr.y +++ b/tools/perf/util/expr.y @@ -127,7 +127,11 @@ static struct ids handle_id(struct expr_parse_ctx *ctx, char *id, if (!compute_ids || (is_const(LHS.val) && is_const(RHS.val))) { \ assert(LHS.ids == NULL); \ assert(RHS.ids == NULL); \ - RESULT.val = (long)LHS.val OP (long)RHS.val; \ + if (isnan(LHS.val) || isnan(RHS.val)) { \ + RESULT.val = NAN; \ + } else { \ + RESULT.val = (long)LHS.val OP (long)RHS.val; \ + } \ RESULT.ids = NULL; \ } else { \ RESULT = union_expr(LHS, RHS); \ @@ -137,7 +141,11 @@ static struct ids handle_id(struct expr_parse_ctx *ctx, char *id, if (!compute_ids || (is_const(LHS.val) && is_const(RHS.val))) { \ assert(LHS.ids == NULL); \ assert(RHS.ids == NULL); \ - RESULT.val = LHS.val OP RHS.val; \ + if (isnan(LHS.val) || isnan(RHS.val)) { \ + RESULT.val = NAN; \ + } else { \ + RESULT.val = LHS.val OP RHS.val; \ + } \ RESULT.ids = NULL; \ } else { \ RESULT = union_expr(LHS, RHS); \ |