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patch 8.2.3275: optimizer can use hints about ga_grow() normally succeeding

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Problem:    Optimizer can use hints about ga_grow() normally succeeding.
Solution:   Use GA_GROW_FAILS() and GA_GROW_OK() in several places. (Dominique
            Pellé, issue #8635)
This commit is contained in:
Bram Moolenaar
2021-08-02 19:10:38 +02:00
parent 952d9d827e
commit 35578168be
5 changed files with 64 additions and 61 deletions
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6
src/macros.h
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@@ -387,8 +387,10 @@
// Inline the condition for performance.
#define CHECK_LIST_MATERIALIZE(l) if ((l)->lv_first == &range_list_item) range_list_materialize(l)
// Inlined version of ga_grow(). Especially useful if "n" is a constant.
#define GA_GROW(gap, n) (((gap)->ga_maxlen - (gap)->ga_len < n) ? ga_grow_inner((gap), (n)) : OK)
// Inlined version of ga_grow() with optimized condition that it fails.
#define GA_GROW_FAILS(gap, n) unlikely((((gap)->ga_maxlen - (gap)->ga_len < n) ? ga_grow_inner((gap), (n)) : OK) == FAIL)
// Inlined version of ga_grow() with optimized condition that it succeeds.
#define GA_GROW_OK(gap, n) likely((((gap)->ga_maxlen - (gap)->ga_len < n) ? ga_grow_inner((gap), (n)) : OK) == OK)
#ifndef MIN
# define MIN(a, b) ((a) < (b) ? (a) : (b))