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terminology
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terminology: let the compiler inline more agressively the common case for a 1% win.

This commit is contained in:
Cedric Bail 2013-10-28 18:55:19 +09:00
parent c1b516f231
commit 433b18b211
1 changed files with 12 additions and 7 deletions
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19
src/bin/termpty.c
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@ -1429,15 +1429,12 @@ termpty_block_chid_get(Termpty *ty, const char *chid)
return tb;
}
static inline void
_handle_block_codepoint_overwrite(Termpty *ty, int oldc, int newc)
static void
_handle_block_codepoint_overwrite_heavy(Termpty *ty, int oldc, int newc)
{
Termblock *tb;
int ido = 0, idn = 0;
if (!((oldc | newc) & 0x80000000)) return;
if (oldc & 0x80000000) ido = (oldc >> 18) & 0x1fff;
if (newc & 0x80000000) idn = (newc >> 18) & 0x1fff;
if (((oldc & 0x80000000) && (newc & 0x80000000)) && (idn == ido)) return;
@ -1463,6 +1460,14 @@ _handle_block_codepoint_overwrite(Termpty *ty, int oldc, int newc)
}
}
/* Try to trick the compiler into inlining the first test */
static inline void
_handle_block_codepoint_overwrite(Termpty *ty, int oldc, int newc)
{
if (!((oldc | newc) & 0x80000000)) return;
_handle_block_codepoint_overwrite_heavy(ty, oldc, newc);
}
void
termpty_cell_copy(Termpty *ty, Termcell *src, Termcell *dst, int n)
{
@ -1515,13 +1520,13 @@ termpty_cell_fill(Termpty *ty, Termcell *src, Termcell *dst, int n)
void
termpty_cell_codepoint_att_fill(Termpty *ty, int codepoint, Termatt att, Termcell *dst, int n)
{
Termcell local = { codepoint, att };
int i;
for (i = 0; i < n; i++)
{
_handle_block_codepoint_overwrite(ty, dst[i].codepoint, codepoint);
dst[i].codepoint = codepoint;
dst[i].att = att;
dst[i] = local;
}
}