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| author | Raymond Hettinger <python@rcn.com> | 2015-05-22 07:41:57 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2015-05-22 07:41:57 (GMT) |
| commit | 5cbd8331ff567ee568713dc5e63820ffb453ac4b (patch) | |
| tree | c1b75bc79b07dead4ee4ec38c06c7596be5c8233 /Include/listobject.h | |
| parent | 35e24a50c569a822c3379ba05714d9bffa3550e5 (diff) | |
| download | cpython-5cbd8331ff567ee568713dc5e63820ffb453ac4b.zip cpython-5cbd8331ff567ee568713dc5e63820ffb453ac4b.tar.gz cpython-5cbd8331ff567ee568713dc5e63820ffb453ac4b.tar.bz2 | |
Issue #24221: Small optimizations for heapq.
Replaces the PyList_GET_ITEM and PyList_SET_ITEM macros with normal array
accesses. Replace the siftup unpredicatable branch with arithmetic.
Replace the rc == -1 tests with rc < 0. Gives nicer looking assembly
with both Clang and GCC-4.9. Also gives a small performance both for both.
Diffstat (limited to 'Include/listobject.h')
| -rw-r--r-- | Include/listobject.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Include/listobject.h b/Include/listobject.h index 74cf46f..daa513f 100644 --- a/Include/listobject.h +++ b/Include/listobject.h @@ -72,6 +72,7 @@ PyAPI_FUNC(void) _PyList_DebugMallocStats(FILE *out); #define PyList_GET_ITEM(op, i) (((PyListObject *)(op))->ob_item[i]) #define PyList_SET_ITEM(op, i, v) (((PyListObject *)(op))->ob_item[i] = (v)) #define PyList_GET_SIZE(op) Py_SIZE(op) +#define _PyList_ITEMS(op) (((PyListObject *)(op))->ob_item) #endif #ifdef __cplusplus |