github-repos/make
1
0
Fork 0
mirror of https://github.com/mirror/make.git synced 2025-03-26 11:12:48 +08:00
Code Issues Packages Projects Releases Wiki Activity

Do not use STOP_SET for singleton compares.

Browse Source 
Compare against '$' directly rather than using MAP_VARIABLE.
This saves ~10% for find_map_function, which is the top hotspot in
QEMU's no-op build.  The build is sped up overall by about 1.5%
more (from 11.1s to 10.95s).

* read.c (find_map_function): Do not compare against singleton sets.
This commit is contained in:
Paolo Bonzini 2017-08-11 13:44:33 +02:00 committed by Paul Smith
parent b280989ab7
commit 0c44ca2683
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
read.c
View File

@ -2249,7 +2249,7 @@ find_map_unquote (char *string, int stopmap)
break; break;
/* If we stopped due to a variable reference, skip over its contents. */ /* If we stopped due to a variable reference, skip over its contents. */
if (STOP_SET (*p, MAP_VARIABLE)) if (*p == '$')
{ {
char openparen = p[1]; char openparen = p[1];