diff options
Diffstat (limited to 'llvm/lib/Target/PowerPC')
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 8 | ||||
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCInstrFuture.td | 20 |
2 files changed, 28 insertions, 0 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index 17f04d0..20fc849 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -138,6 +138,11 @@ static cl::opt<unsigned> PPCMinimumJumpTableEntries( "ppc-min-jump-table-entries", cl::init(64), cl::Hidden, cl::desc("Set minimum number of entries to use a jump table on PPC")); +static cl::opt<unsigned> PPCMinimumBitTestCmps( + "ppc-min-bit-test-cmps", cl::init(3), cl::Hidden, + cl::desc("Set minimum of largest number of comparisons to use bit test for " + "switch on PPC.")); + static cl::opt<unsigned> PPCGatherAllAliasesMaxDepth( "ppc-gather-alias-max-depth", cl::init(18), cl::Hidden, cl::desc("max depth when checking alias info in GatherAllAliases()")); @@ -1436,6 +1441,9 @@ PPCTargetLowering::PPCTargetLowering(const PPCTargetMachine &TM, // Re-evaluate this value on future HWs that can do better with mtctr. setMinimumJumpTableEntries(PPCMinimumJumpTableEntries); + // The default minimum of largest number in a BitTest cluster is 3. + setMinimumBitTestCmps(PPCMinimumBitTestCmps); + setMinFunctionAlignment(Align(4)); setMinCmpXchgSizeInBits(Subtarget.hasPartwordAtomics() ? 8 : 32); diff --git a/llvm/lib/Target/PowerPC/PPCInstrFuture.td b/llvm/lib/Target/PowerPC/PPCInstrFuture.td index b0bed71c..da3efdc 100644 --- a/llvm/lib/Target/PowerPC/PPCInstrFuture.td +++ b/llvm/lib/Target/PowerPC/PPCInstrFuture.td @@ -194,6 +194,22 @@ class XX3Form_XTAB6<bits<6> opcode, bits<8> xo, dag OOL, dag IOL, string asmstr, let Inst{31} = XT{5}; } +class XForm_RBS5<bits<6> opCode, bits<10> xo, dag OOL, dag IOL, string asmstr, + InstrItinClass itin, list<dag> pattern> + : I<opCode, OOL, IOL, asmstr, itin> { + + bits<5> RB; + bits<5> RS; + + let Pattern = pattern; + + let Inst{6...10} = RS; + let Inst{11...15} = 0; + let Inst{16...20} = RB; + let Inst{21...30} = xo; + let Inst{31} = 0; +} + class XX3Form_XTAB6_S<bits<5> xo, dag OOL, dag IOL, string asmstr, list<dag> pattern> : I<59, OOL, IOL, asmstr, NoItinerary> { @@ -317,12 +333,16 @@ let Predicates = [IsISAFuture] in { def TLBIEIO : XForm_RSB5_UIMM2<31, 18, (outs), (ins g8rc:$RB, g8rc:$RS, u2imm:$RIC), "tlbieio $RB, $RS, $RIC", []>; + def MTLPL : XForm_RBS5<31, 275, (outs), (ins gprc:$RB, gprc:$RS), + "mtlpl $RB, $RS", IIC_SprMTSPR, []>; let Interpretation64Bit = 1, isCodeGenOnly = 1 in { def TLBIEP8 : XForm_RSB5_UIMM2_2UIMM1<31, 50, (outs), (ins g8rc:$RB, g8rc:$RS, u2imm:$RIC, u1imm:$PRS, u1imm:$R), "tlbiep $RB, $RS, $RIC, $PRS, $R", []>; + def MTLPL8 : XForm_RBS5<31, 275, (outs), (ins g8rc:$RB, g8rc:$RS), + "mtlpl $RB, $RS", IIC_SprMTSPR, []>, isPPC64; } } |