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Fix signed/unsigned issues of immediate version of brcond (malc)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4588 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2008-05-26 19:11:07 +00:00
parent ef28fd8673
commit f3f478a7ef
1 changed files with 48 additions and 11 deletions
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59
tcg/ppc/tcg-target.c
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@ -866,18 +866,55 @@ static void tcg_out_brcond(TCGContext *s, int cond,
int imm; int imm;
uint32_t op; uint32_t op;
imm = const_arg2 ? ((int16_t) arg2 == arg2) : 0;
switch (cond) { switch (cond) {
case TCG_COND_EQ: op = imm ? CMPLI : CMPL; break; case TCG_COND_EQ:
case TCG_COND_NE: op = imm ? CMPLI : CMPL; break; case TCG_COND_NE:
case TCG_COND_LT: op = imm ? CMPI : CMP; break; if (const_arg2) {
case TCG_COND_GE: op = imm ? CMPI : CMP; break; if ((int16_t) arg2 == arg2) {
case TCG_COND_LE: op = imm ? CMPI : CMP; break; op = CMPI;
case TCG_COND_GT: op = imm ? CMPI : CMP; break; imm = 1;
case TCG_COND_LTU: op = imm ? CMPLI : CMPL; break; break;
case TCG_COND_GEU: op = imm ? CMPLI : CMPL; break; }
case TCG_COND_LEU: op = imm ? CMPLI : CMPL; break; else if ((uint16_t) arg2 == arg2) {
case TCG_COND_GTU: op = imm ? CMPLI : CMPL; break; op = CMPLI;
imm = 1;
break;
}
}
op = CMPL;
imm = 0;
break;
case TCG_COND_LT:
case TCG_COND_GE:
case TCG_COND_LE:
case TCG_COND_GT:
if (const_arg2) {
if ((int16_t) arg2 == arg2) {
op = CMPI;
imm = 1;
break;
}
}
op = CMP;
imm = 0;
break;
case TCG_COND_LTU:
case TCG_COND_GEU:
case TCG_COND_LEU:
case TCG_COND_GTU:
if (const_arg2) {
if ((uint16_t) arg2 == arg2) {
op = CMPLI;
imm = 1;
break;
}
}
op = CMPL;
imm = 0;
break;
default: default:
tcg_abort (); tcg_abort ();
} }