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Do not use STOP_SET for singleton compares.

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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
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2
read.c
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@ -2249,7 +2249,7 @@ find_map_unquote (char *string, int stopmap)
break;
/* If we stopped due to a variable reference, skip over its contents. */
if (STOP_SET (*p, MAP_VARIABLE))
if (*p == '$')
{
char openparen = p[1];