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Use __builtin_expect in a few places 

utf8 is extremely rare in the strings we see in
font configuration, so this seems to be a good
case for __builtin_expect.
This commit is contained in:
Matthias Clasen 2020-08-22 00:57:25 -04:00
parent 13015a0a6e
commit 148ebf98ed
1 changed files with 6 additions and 6 deletions
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12
src/fcstr.c
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@ -164,7 +164,7 @@ FcStrCaseWalkerNextNonDelim (FcCaseWalker *w, const char *delims)
{ {
FcChar8 r; FcChar8 r;
if (w->read) if (__builtin_expect (w->read != NULL, 0))
{ {
if ((r = *w->read++)) if ((r = *w->read++))
return r; return r;
@ -175,7 +175,7 @@ FcStrCaseWalkerNextNonDelim (FcCaseWalker *w, const char *delims)
r = *w->src++; r = *w->src++;
} while (r != 0 && delims && strchr (delims, r)); } while (r != 0 && delims && strchr (delims, r));
if ((r & 0xc0) == 0xc0) if (__builtin_expect ((r & 0xc0) == 0xc0, 0))
return FcStrCaseWalkerLong (w, r); return FcStrCaseWalkerLong (w, r);
if ('A' <= r && r <= 'Z') if ('A' <= r && r <= 'Z')
r = r - 'A' + 'a'; r = r - 'A' + 'a';
@ -187,7 +187,7 @@ FcStrCaseWalkerNextNonBlank (FcCaseWalker *w)
{ {
FcChar8 r; FcChar8 r;
if (w->read) if (__builtin_expect (w->read != NULL, 0))
{ {
if ((r = *w->read++)) if ((r = *w->read++))
return r; return r;
@ -198,7 +198,7 @@ FcStrCaseWalkerNextNonBlank (FcCaseWalker *w)
r = *w->src++; r = *w->src++;
} while (r == ' '); } while (r == ' ');
if ((r & 0xc0) == 0xc0) if (__builtin_expect ((r & 0xc0) == 0xc0, 0))
return FcStrCaseWalkerLong (w, r); return FcStrCaseWalkerLong (w, r);
if ('A' <= r && r <= 'Z') if ('A' <= r && r <= 'Z')
r = r - 'A' + 'a'; r = r - 'A' + 'a';
@ -210,7 +210,7 @@ FcStrCaseWalkerNext (FcCaseWalker *w)
{ {
FcChar8 r; FcChar8 r;
if (w->read) if (__builtin_expect (w->read != NULL, 0))
{ {
if ((r = *w->read++)) if ((r = *w->read++))
return r; return r;
@ -219,7 +219,7 @@ FcStrCaseWalkerNext (FcCaseWalker *w)
r = *w->src++; r = *w->src++;
if ((r & 0xc0) == 0xc0) if (__builtin_expect ((r & 0xc0) == 0xc0, 0))
return FcStrCaseWalkerLong (w, r); return FcStrCaseWalkerLong (w, r);
if ('A' <= r && r <= 'Z') if ('A' <= r && r <= 'Z')
r = r - 'A' + 'a'; r = r - 'A' + 'a';