Author: Carl Friedrich Bolz-Tereick <[email protected]>
Branch: record-known-result
Changeset: r97691:681aab475a24
Date: 2019-09-30 21:28 +0200
http://bitbucket.org/pypy/pypy/changeset/681aab475a24/
Log: speed up checking the result of unicode.find
diff --git a/pypy/objspace/std/unicodeobject.py
b/pypy/objspace/std/unicodeobject.py
--- a/pypy/objspace/std/unicodeobject.py
+++ b/pypy/objspace/std/unicodeobject.py
@@ -1007,18 +1007,14 @@
if forward:
res_index = self._utf8.find(w_sub._utf8, start_index, end_index)
- if res_index < 0:
- return None
- res = self._byte_to_index(res_index)
- assert res >= 0
- return space.newint(res)
else:
res_index = self._utf8.rfind(w_sub._utf8, start_index, end_index)
- if res_index < 0:
- return None
- res = self._byte_to_index(res_index)
- assert res >= 0
- return space.newint(res)
+ if res_index < 0:
+ return None
+ res = self._byte_to_index(res_index)
+ assert res >= 0
+ jit.promote(res >= 0) # always true!
+ return space.newint(res)
def _unwrap_and_compute_idx_params(self, space, w_start, w_end):
# unwrap start and stop indices, optimized for the case where
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