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[Hexagon] Adding halfword to doubleword multiplies.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224289 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Colin LeMahieu
2014-12-15 23:29:37 +00:00
parent 1240508dda
commit b4838f6d59
2 changed files with 83 additions and 0 deletions
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59
lib/Target/Hexagon/HexagonInstrInfo.td
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@@ -2220,6 +2220,65 @@ def : T_MType_acc_pat1 <M2_macsin, mul, sub, u8ExtPred>;
def : T_MType_acc_pat1 <M2_naccii, add, sub, s8_16ExtPred>;
def : T_MType_acc_pat2 <M2_nacci, add, sub>;
//===----------------------------------------------------------------------===//
// Template Class -- Multiply signed/unsigned halfwords with and without
// saturation and rounding
//===----------------------------------------------------------------------===//
class T_M2_mpyd < bits<2> LHbits, bit isRnd, bit hasShift, bit isUnsigned >
: MInst < (outs DoubleRegs:$Rdd), (ins IntRegs:$Rs, IntRegs:$Rt),
"$Rdd = "#!if(isUnsigned,"mpyu","mpy")#"($Rs."#!if(LHbits{1},"h","l")
#", $Rt."#!if(LHbits{0},"h)","l)")
#!if(hasShift,":<<1","")
#!if(isRnd,":rnd",""),
[] > {
bits<5> Rdd;
bits<5> Rs;
bits<5> Rt;
let IClass = 0b1110;
let Inst{27-24} = 0b0100;
let Inst{23} = hasShift;
let Inst{22} = isUnsigned;
let Inst{21} = isRnd;
let Inst{6-5} = LHbits;
let Inst{4-0} = Rdd;
let Inst{20-16} = Rs;
let Inst{12-8} = Rt;
}
let isCodeGenOnly = 0 in {
def M2_mpyd_hh_s0: T_M2_mpyd<0b11, 0, 0, 0>;
def M2_mpyd_hl_s0: T_M2_mpyd<0b10, 0, 0, 0>;
def M2_mpyd_lh_s0: T_M2_mpyd<0b01, 0, 0, 0>;
def M2_mpyd_ll_s0: T_M2_mpyd<0b00, 0, 0, 0>;
def M2_mpyd_hh_s1: T_M2_mpyd<0b11, 0, 1, 0>;
def M2_mpyd_hl_s1: T_M2_mpyd<0b10, 0, 1, 0>;
def M2_mpyd_lh_s1: T_M2_mpyd<0b01, 0, 1, 0>;
def M2_mpyd_ll_s1: T_M2_mpyd<0b00, 0, 1, 0>;
def M2_mpyd_rnd_hh_s0: T_M2_mpyd<0b11, 1, 0, 0>;
def M2_mpyd_rnd_hl_s0: T_M2_mpyd<0b10, 1, 0, 0>;
def M2_mpyd_rnd_lh_s0: T_M2_mpyd<0b01, 1, 0, 0>;
def M2_mpyd_rnd_ll_s0: T_M2_mpyd<0b00, 1, 0, 0>;
def M2_mpyd_rnd_hh_s1: T_M2_mpyd<0b11, 1, 1, 0>;
def M2_mpyd_rnd_hl_s1: T_M2_mpyd<0b10, 1, 1, 0>;
def M2_mpyd_rnd_lh_s1: T_M2_mpyd<0b01, 1, 1, 0>;
def M2_mpyd_rnd_ll_s1: T_M2_mpyd<0b00, 1, 1, 0>;
//Rdd=mpyu(Rs.[HL],Rt.[HL])[:<<1]
def M2_mpyud_hh_s0: T_M2_mpyd<0b11, 0, 0, 1>;
def M2_mpyud_hl_s0: T_M2_mpyd<0b10, 0, 0, 1>;
def M2_mpyud_lh_s0: T_M2_mpyd<0b01, 0, 0, 1>;
def M2_mpyud_ll_s0: T_M2_mpyd<0b00, 0, 0, 1>;
def M2_mpyud_hh_s1: T_M2_mpyd<0b11, 0, 1, 1>;
def M2_mpyud_hl_s1: T_M2_mpyd<0b10, 0, 1, 1>;
def M2_mpyud_lh_s1: T_M2_mpyd<0b01, 0, 1, 1>;
def M2_mpyud_ll_s1: T_M2_mpyd<0b00, 0, 1, 1>;
}
// Multiply and use lower result.
// Rd=+mpyi(Rs,#u8)