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tcg/s390x: Support MIE2 MGRK instruction 

The MIE2 facility adds a 3-operand signed 64x64->128 multiply.

Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-02-24 01:35:43 +00:00
parent 92c89a074c
commit 668ce343f6
3 changed files with 10 additions and 1 deletions
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1
tcg/s390x/tcg-target-con-set.h
View File

@ -31,6 +31,7 @@ C_O1_I3(v, v, v, v)
C_O1_I4(r, r, ri, r, 0)
C_O1_I4(r, r, ri, rI, 0)
C_O2_I2(o, m, 0, r)
C_O2_I2(o, m, r, r)
C_O2_I3(o, m, 0, 1, r)
C_O2_I4(r, r, 0, 1, rA, r)
C_O2_I4(r, r, 0, 1, ri, r)

8
tcg/s390x/tcg-target.c.inc
View File

@ -175,6 +175,7 @@ typedef enum S390Opcode {
RRE_SLBGR = 0xb989,
RRE_XGR = 0xb982,
RRFa_MGRK = 0xb9ec,
RRFa_MSRKC = 0xb9fd,
RRFa_MSGRKC = 0xb9ed,
RRFa_NRK = 0xb9f4,
@ -2319,6 +2320,11 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_debug_assert(args[0] == args[1] + 1);
tcg_out_insn(s, RRE, MLGR, args[1], args[3]);
break;
case INDEX_op_muls2_i64:
tcg_debug_assert((args[1] & 1) == 0);
tcg_debug_assert(args[0] == args[1] + 1);
tcg_out_insn(s, RRFa, MGRK, args[1], args[2], args[3]);
break;
case INDEX_op_shl_i64:
op = RSY_SLLG;
@ -3009,6 +3015,8 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_mulu2_i64:
return C_O2_I2(o, m, 0, r);
case INDEX_op_muls2_i64:
return C_O2_I2(o, m, r, r);
case INDEX_op_add2_i32:
case INDEX_op_sub2_i32:

2
tcg/s390x/tcg-target.h
View File

@ -136,7 +136,7 @@ extern uint64_t s390_facilities[3];
#define TCG_TARGET_HAS_add2_i64 1
#define TCG_TARGET_HAS_sub2_i64 1
#define TCG_TARGET_HAS_mulu2_i64 1
#define TCG_TARGET_HAS_muls2_i64 0
#define TCG_TARGET_HAS_muls2_i64 HAVE_FACILITY(MISC_INSN_EXT2)
#define TCG_TARGET_HAS_muluh_i64 0
#define TCG_TARGET_HAS_mulsh_i64 0