diff options
Diffstat (limited to 'lib/Target/Mips/MipsInstrInfo.td')
| -rw-r--r-- | lib/Target/Mips/MipsInstrInfo.td | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td index 1160b34c85..a93bc18e85 100644 --- a/lib/Target/Mips/MipsInstrInfo.td +++ b/lib/Target/Mips/MipsInstrInfo.td @@ -513,9 +513,19 @@ class EffectiveAddress<string instr_asm> : instr_asm, [(set CPURegs:$rt, addr:$addr)], IIAlu>; // Count Leading Ones/Zeros in Word -class CountLeading<bits<6> func, string instr_asm, list<dag> pattern>: - FR<0x1c, func, (outs CPURegs:$rd), (ins CPURegs:$rs), - !strconcat(instr_asm, "\t$rd, $rs"), pattern, IIAlu>, +class CountLeading0<bits<6> func, string instr_asm, RegisterClass RC>: + FR<0x1c, func, (outs RC:$rd), (ins RC:$rs), + !strconcat(instr_asm, "\t$rd, $rs"), + [(set RC:$rd, (ctlz RC:$rs))], IIAlu>, + Requires<[HasBitCount]> { + let shamt = 0; + let rt = rd; +} + +class CountLeading1<bits<6> func, string instr_asm, RegisterClass RC>: + FR<0x1c, func, (outs RC:$rd), (ins RC:$rs), + !strconcat(instr_asm, "\t$rd, $rs"), + [(set RC:$rd, (ctlz (not RC:$rs)))], IIAlu>, Requires<[HasBitCount]> { let shamt = 0; let rt = rd; @@ -753,10 +763,8 @@ def SEB : SignExtInReg<0x10, "seb", i8>; def SEH : SignExtInReg<0x18, "seh", i16>; /// Count Leading -def CLZ : CountLeading<0x20, "clz", - [(set CPURegs:$rd, (ctlz CPURegs:$rs))]>; -def CLO : CountLeading<0x21, "clo", - [(set CPURegs:$rd, (ctlz (not CPURegs:$rs)))]>; +def CLZ : CountLeading0<0x20, "clz", CPURegs>; +def CLO : CountLeading1<0x21, "clo", CPURegs>; /// Byte Swap def WSBW : ByteSwap<0x20, 0x2, "wsbw">; |