motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-03 07:43:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

tcg: Merge INDEX_op_{neg}setcond_{i32,i64}`

Browse source 
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2025-01-10 09:26:44 -08:00
parent 5a7b38c8ca
commit a363e1e179
9 changed files with 39 additions and 66 deletions
Download patch file Download diff file Expand all files Collapse all files

32
tcg/optimize.c
View file

@ -1996,35 +1996,19 @@ static bool fold_movcond(OptContext *ctx, TCGOp *op)
if (ti_is_const(tt) && ti_is_const(ft)) {
uint64_t tv = ti_const_val(tt);
uint64_t fv = ti_const_val(ft);
TCGOpcode opc, negopc;
TCGCond cond = op->args[5];
switch (ctx->type) {
case TCG_TYPE_I32:
opc = INDEX_op_setcond_i32;
negopc = INDEX_op_negsetcond_i32;
tv = (int32_t)tv;
fv = (int32_t)fv;
break;
case TCG_TYPE_I64:
opc = INDEX_op_setcond_i64;
negopc = INDEX_op_negsetcond_i64;
break;
default:
g_assert_not_reached();
}
if (tv == 1 && fv == 0) {
op->opc = opc;
op->opc = INDEX_op_setcond;
op->args[3] = cond;
} else if (fv == 1 && tv == 0) {
op->opc = opc;
op->opc = INDEX_op_setcond;
op->args[3] = tcg_invert_cond(cond);
} else if (tv == -1 && fv == 0) {
op->opc = negopc;
op->opc = INDEX_op_negsetcond;
op->args[3] = cond;
} else if (fv == -1 && tv == 0) {
op->opc = negopc;
op->opc = INDEX_op_negsetcond;
op->args[3] = tcg_invert_cond(cond);
}
}
@ -2526,14 +2510,14 @@ static bool fold_setcond2(OptContext *ctx, TCGOp *op)
do_setcond_low:
op->args[2] = op->args[3];
op->args[3] = cond;
op->opc = INDEX_op_setcond_i32;
op->opc = INDEX_op_setcond;
return fold_setcond(ctx, op);
do_setcond_high:
op->args[1] = op->args[2];
op->args[2] = op->args[4];
op->args[3] = cond;
op->opc = INDEX_op_setcond_i32;
op->opc = INDEX_op_setcond;
return fold_setcond(ctx, op);
}
@ -3025,10 +3009,10 @@ void tcg_optimize(TCGContext *s)
case INDEX_op_shr:
done = fold_shift(&ctx, op);
break;
CASE_OP_32_64(setcond):
case INDEX_op_setcond:
done = fold_setcond(&ctx, op);
break;
CASE_OP_32_64(negsetcond):
case INDEX_op_negsetcond:
done = fold_negsetcond(&ctx, op);
break;
case INDEX_op_setcond2_i32: