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tcg/i386: Fold the ext{8,16,32}[us] cases into {s}extract

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Accept byte and word extensions with the extract opcodes.
This is preparatory to removing the specialized extracts.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-12-25 18:55:45 -08:00
parent ad76017e51
commit 4bce752c1a
5 changed files with 107 additions and 36 deletions
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8
tcg/optimize.c
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@ -2362,8 +2362,10 @@ static void fold_setcond_tst_pow2(OptContext *ctx, TCGOp *op, bool neg)
xor_opc = INDEX_op_xor_i32;
shr_opc = INDEX_op_shr_i32;
neg_opc = INDEX_op_neg_i32;
if (TCG_TARGET_extract_i32_valid(sh, 1)) {
if (TCG_TARGET_extract_valid(TCG_TYPE_I32, sh, 1)) {
uext_opc = TCG_TARGET_HAS_extract_i32 ? INDEX_op_extract_i32 : 0;
}
if (TCG_TARGET_sextract_valid(TCG_TYPE_I32, sh, 1)) {
sext_opc = TCG_TARGET_HAS_sextract_i32 ? INDEX_op_sextract_i32 : 0;
}
break;
@ -2373,8 +2375,10 @@ static void fold_setcond_tst_pow2(OptContext *ctx, TCGOp *op, bool neg)
xor_opc = INDEX_op_xor_i64;
shr_opc = INDEX_op_shr_i64;
neg_opc = INDEX_op_neg_i64;
if (TCG_TARGET_extract_i64_valid(sh, 1)) {
if (TCG_TARGET_extract_valid(TCG_TYPE_I64, sh, 1)) {
uext_opc = TCG_TARGET_HAS_extract_i64 ? INDEX_op_extract_i64 : 0;
}
if (TCG_TARGET_sextract_valid(TCG_TYPE_I64, sh, 1)) {
sext_opc = TCG_TARGET_HAS_sextract_i64 ? INDEX_op_sextract_i64 : 0;
}
break;