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Restore eda2c756ed

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This commit is contained in:
jiang
2014-04-30 14:24:44 +08:00
parent 515169f21b
commit 9ff288648b
6 changed files with 148 additions and 67 deletions
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19
i386-gen.c
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@ -677,7 +677,7 @@ ST_FUNC int gtst(int inv, int t)
/* fast case : can jump directly since flags are set */
g(0x0f);
t = psym((vtop->c.i - 16) ^ inv, t);
} else { /* VT_JMP || VT_JMPI */
} else if (v == VT_JMP || v == VT_JMPI) {
/* && or || optimization */
if ((v & 1) == inv) {
/* insert vtop->c jump list in t */
@ -690,6 +690,23 @@ ST_FUNC int gtst(int inv, int t)
t = gjmp(t);
gsym(vtop->c.i);
}
} else {
if (is_float(vtop->type.t) ||
(vtop->type.t & VT_BTYPE) == VT_LLONG) {
vpushi(0);
gen_op(TOK_NE);
}
if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) {
/* constant jmp optimization */
if ((vtop->c.i != 0) != inv)
t = gjmp(t);
} else {
v = gv(RC_INT);
o(0x85);
o(0xc0 + v * 9);
g(0x0f);
t = psym(0x85 ^ inv, t);
}
}
vtop--;
return t;