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tcg/s390: Implement field extraction opcodes

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Backports commit b0bf5fe82df93c180f69d439af59f1f546632f13 from qemu
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Richard Henderson 2018-03-01 13:45:30 -05:00 committed by Lioncash
parent ab8871ea82
commit a7462cc7bf
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1 changed files with 11 additions and 0 deletions
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11
qemu/tcg/s390/tcg-target.inc.c
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@ -1258,6 +1258,12 @@ static void tgen_deposit(TCGContext *s, TCGReg dest, TCGReg src,
tcg_out_risbg(s, dest, src, msb, lsb, ofs, 0);
}
static void tgen_extract(TCGContext *s, TCGReg dest, TCGReg src,
int ofs, int len)
{
tcg_out_risbg(s, dest, src, 64 - len, 63, 64 - ofs, 1);
}
static void tgen_gotoi(TCGContext *s, int cc, tcg_insn_unit *dest)
{
ptrdiff_t off = dest - s->code_ptr;
@ -2165,6 +2171,9 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
OP_32_64(deposit):
tgen_deposit(s, args[0], args[2], args[3], args[4]);
break;
OP_32_64(extract):
tgen_extract(s, args[0], args[1], args[2], args[3]);
break;
case INDEX_op_mb:
/* The host memory model is quite strong, we simply need to
@ -2234,6 +2243,7 @@ static const TCGTargetOpDef s390_op_defs[] = {
{ INDEX_op_setcond_i32, { "r", "r", "rC" } },
{ INDEX_op_movcond_i32, { "r", "r", "rC", "r", "0" } },
{ INDEX_op_deposit_i32, { "r", "0", "r" } },
{ INDEX_op_extract_i32, { "r", "r" } },
{ INDEX_op_qemu_ld_i32, { "r", "L" } },
{ INDEX_op_qemu_ld_i64, { "r", "L" } },
@ -2295,6 +2305,7 @@ static const TCGTargetOpDef s390_op_defs[] = {
{ INDEX_op_setcond_i64, { "r", "r", "rC" } },
{ INDEX_op_movcond_i64, { "r", "r", "rC", "r", "0" } },
{ INDEX_op_deposit_i64, { "r", "0", "r" } },
{ INDEX_op_extract_i64, { "r", "r" } },
{ INDEX_op_mb, { } },
{ -1 },