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tcg: Merge INDEX_op_neg_{i32,i64}

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Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2025-01-06 22:48:57 -08:00
parent e126a91c38
commit 6971358747
7 changed files with 18 additions and 40 deletions
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30
tcg/optimize.c
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@ -478,7 +478,7 @@ static uint64_t do_constant_folding_2(TCGOpcode op, uint64_t x, uint64_t y)
CASE_OP_32_64_VEC(not):
return ~x;
CASE_OP_32_64(neg):
case INDEX_op_neg:
return -x;
case INDEX_op_andc:
@ -2314,25 +2314,12 @@ static int fold_setcond_zmask(OptContext *ctx, TCGOp *op, bool neg)
break;
}
if (convert) {
TCGOpcode neg_opc;
if (!inv && !neg) {
return tcg_opt_gen_mov(ctx, op, op->args[0], op->args[1]);
}
switch (ctx->type) {
case TCG_TYPE_I32:
neg_opc = INDEX_op_neg_i32;
break;
case TCG_TYPE_I64:
neg_opc = INDEX_op_neg_i64;
break;
default:
g_assert_not_reached();
}
if (!inv) {
op->opc = neg_opc;
op->opc = INDEX_op_neg;
} else if (neg) {
op->opc = INDEX_op_add;
op->args[2] = arg_new_constant(ctx, -1);
@ -2348,7 +2335,7 @@ static int fold_setcond_zmask(OptContext *ctx, TCGOp *op, bool neg)
static void fold_setcond_tst_pow2(OptContext *ctx, TCGOp *op, bool neg)
{
TCGOpcode neg_opc, shr_opc;
TCGOpcode shr_opc;
TCGOpcode uext_opc = 0, sext_opc = 0;
TCGCond cond = op->args[3];
TCGArg ret, src1, src2;
@ -2371,7 +2358,6 @@ static void fold_setcond_tst_pow2(OptContext *ctx, TCGOp *op, bool neg)
switch (ctx->type) {
case TCG_TYPE_I32:
shr_opc = INDEX_op_shr_i32;
neg_opc = INDEX_op_neg_i32;
if (TCG_TARGET_extract_valid(TCG_TYPE_I32, sh, 1)) {
uext_opc = INDEX_op_extract_i32;
}
@ -2381,7 +2367,6 @@ static void fold_setcond_tst_pow2(OptContext *ctx, TCGOp *op, bool neg)
break;
case TCG_TYPE_I64:
shr_opc = INDEX_op_shr_i64;
neg_opc = INDEX_op_neg_i64;
if (TCG_TARGET_extract_valid(TCG_TYPE_I64, sh, 1)) {
uext_opc = INDEX_op_extract_i64;
}
@ -2432,7 +2417,7 @@ static void fold_setcond_tst_pow2(OptContext *ctx, TCGOp *op, bool neg)
op2->args[1] = ret;
op2->args[2] = arg_new_constant(ctx, 1);
} else if (neg) {
op2 = opt_insert_after(ctx, op, neg_opc, 2);
op2 = opt_insert_after(ctx, op, INDEX_op_neg, 2);
op2->args[0] = ret;
op2->args[1] = ret;
}
@ -2644,11 +2629,8 @@ static bool fold_sub_to_neg(OptContext *ctx, TCGOp *op)
switch (ctx->type) {
case TCG_TYPE_I32:
neg_op = INDEX_op_neg_i32;
have_neg = true;
break;
case TCG_TYPE_I64:
neg_op = INDEX_op_neg_i64;
neg_op = INDEX_op_neg;
have_neg = true;
break;
case TCG_TYPE_V64:
@ -2998,7 +2980,7 @@ void tcg_optimize(TCGContext *s)
case INDEX_op_nand_vec:
done = fold_nand(&ctx, op);
break;
CASE_OP_32_64(neg):
case INDEX_op_neg:
done = fold_neg(&ctx, op);
break;
case INDEX_op_nor: