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Diffstat (limited to 'gcc/tree-switch-conversion.h')
| -rw-r--r-- | gcc/tree-switch-conversion.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/gcc/tree-switch-conversion.h b/gcc/tree-switch-conversion.h index 9ebcf10..dbfd9ee 100644 --- a/gcc/tree-switch-conversion.h +++ b/gcc/tree-switch-conversion.h @@ -84,11 +84,10 @@ public: then return 0. */ static unsigned HOST_WIDE_INT get_range (tree low, tree high) { - tree r = fold_build2 (MINUS_EXPR, TREE_TYPE (low), high, low); - if (!tree_fits_uhwi_p (r)) + wide_int w = wi::to_wide (high) - wi::to_wide (low); + if (wi::neg_p (w, TYPE_SIGN (TREE_TYPE (low))) || !wi::fits_uhwi_p (w)) return 0; - - return tree_to_uhwi (r) + 1; + return w.to_uhwi () + 1; } /* Case label. */ |