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tcg/s390: Implement field extraction opcodes

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Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-10-14 14:26:40 -05:00
parent b2c98d9d39
commit b0bf5fe82d
2 changed files with 13 additions and 2 deletions
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4
tcg/s390/tcg-target.h
View file

@ -78,7 +78,7 @@ extern uint64_t s390_facilities;
#define TCG_TARGET_HAS_nand_i32 0
#define TCG_TARGET_HAS_nor_i32 0
#define TCG_TARGET_HAS_deposit_i32 (s390_facilities & FACILITY_GEN_INST_EXT)
#define TCG_TARGET_HAS_extract_i32 0
#define TCG_TARGET_HAS_extract_i32 (s390_facilities & FACILITY_GEN_INST_EXT)
#define TCG_TARGET_HAS_sextract_i32 0
#define TCG_TARGET_HAS_movcond_i32 1
#define TCG_TARGET_HAS_add2_i32 1
@ -109,7 +109,7 @@ extern uint64_t s390_facilities;
#define TCG_TARGET_HAS_nand_i64 0
#define TCG_TARGET_HAS_nor_i64 0
#define TCG_TARGET_HAS_deposit_i64 (s390_facilities & FACILITY_GEN_INST_EXT)
#define TCG_TARGET_HAS_extract_i64 0
#define TCG_TARGET_HAS_extract_i64 (s390_facilities & FACILITY_GEN_INST_EXT)
#define TCG_TARGET_HAS_sextract_i64 0
#define TCG_TARGET_HAS_movcond_i64 1
#define TCG_TARGET_HAS_add2_i64 1

11
tcg/s390/tcg-target.inc.c
View file

@ -1252,6 +1252,12 @@ 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;
@ -2158,6 +2164,9 @@ 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
@ -2227,6 +2236,7 @@ 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" } },
@ -2288,6 +2298,7 @@ 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 },