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-rw-r--r--llvm/lib/Target/Mips/MicroMipsInstrInfo.td6
-rw-r--r--llvm/lib/Target/Mips/Mips.td4
-rw-r--r--llvm/lib/Target/Mips/Mips64InstrInfo.td4
-rw-r--r--llvm/lib/Target/Mips/MipsISelLowering.cpp5
-rw-r--r--llvm/lib/Target/Mips/MipsInstrInfo.td14
-rw-r--r--llvm/lib/Target/Mips/MipsSubtarget.cpp5
-rw-r--r--llvm/lib/Target/Mips/MipsSubtarget.h4
7 files changed, 17 insertions, 25 deletions
diff --git a/llvm/lib/Target/Mips/MicroMipsInstrInfo.td b/llvm/lib/Target/Mips/MicroMipsInstrInfo.td
index 93c33307c08..54564e2b857 100644
--- a/llvm/lib/Target/Mips/MicroMipsInstrInfo.td
+++ b/llvm/lib/Target/Mips/MicroMipsInstrInfo.td
@@ -218,8 +218,10 @@ let DecoderNamespace = "MicroMips", Predicates = [InMicroMips] in {
def MSUBU_MM : MMRel, MArithR<"msubu", II_MSUBU>, MULT_FM_MM<0x3ec>;
/// Count Leading
- def CLZ_MM : MMRel, CountLeading0<"clz", GPR32Opnd>, CLO_FM_MM<0x16c>;
- def CLO_MM : MMRel, CountLeading1<"clo", GPR32Opnd>, CLO_FM_MM<0x12c>;
+ def CLZ_MM : MMRel, CountLeading0<"clz", GPR32Opnd>, CLO_FM_MM<0x16c>,
+ ISA_MIPS32;
+ def CLO_MM : MMRel, CountLeading1<"clo", GPR32Opnd>, CLO_FM_MM<0x12c>,
+ ISA_MIPS32;
/// Sign Ext In Register Instructions.
def SEB_MM : MMRel, SignExtInReg<"seb", i8, GPR32Opnd, II_SEB>,
diff --git a/llvm/lib/Target/Mips/Mips.td b/llvm/lib/Target/Mips/Mips.td
index 66b3d742503..e84c5f6980c 100644
--- a/llvm/lib/Target/Mips/Mips.td
+++ b/llvm/lib/Target/Mips/Mips.td
@@ -75,8 +75,6 @@ def FeatureEABI : SubtargetFeature<"eabi", "MipsABI", "EABI",
"Enable eabi ABI">;
def FeatureVFPU : SubtargetFeature<"vfpu", "HasVFPU",
"true", "Enable vector FPU instructions.">;
-def FeatureBitCount : SubtargetFeature<"bitcount", "HasBitCount", "true",
- "Enable 'count leading bits' instructions.">;
def FeatureMips1 : SubtargetFeature<"mips1", "MipsArchVersion", "Mips1",
"Mips I ISA Support [highly experimental]">;
def FeatureMips2 : SubtargetFeature<"mips2", "MipsArchVersion", "Mips2",
@@ -105,7 +103,7 @@ def FeatureMips5 : SubtargetFeature<"mips5", "MipsArchVersion", "Mips5",
def FeatureMips32 : SubtargetFeature<"mips32", "MipsArchVersion", "Mips32",
"Mips32 ISA Support",
[FeatureMips2, FeatureMips3_32,
- FeatureMips4_32, FeatureBitCount]>;
+ FeatureMips4_32]>;
def FeatureMips32r2 : SubtargetFeature<"mips32r2", "MipsArchVersion",
"Mips32r2", "Mips32r2 ISA Support",
[FeatureMips4_32r2, FeatureMips32]>;
diff --git a/llvm/lib/Target/Mips/Mips64InstrInfo.td b/llvm/lib/Target/Mips/Mips64InstrInfo.td
index e70817b0c33..12c6e087c54 100644
--- a/llvm/lib/Target/Mips/Mips64InstrInfo.td
+++ b/llvm/lib/Target/Mips/Mips64InstrInfo.td
@@ -216,8 +216,8 @@ def SEH64 : SignExtInReg<"seh", i16, GPR64Opnd, II_SEH>, SEB_FM<0x18, 0x20>,
}
/// Count Leading
-def DCLZ : CountLeading0<"dclz", GPR64Opnd>, CLO_FM<0x24>;
-def DCLO : CountLeading1<"dclo", GPR64Opnd>, CLO_FM<0x25>;
+def DCLZ : CountLeading0<"dclz", GPR64Opnd>, CLO_FM<0x24>, ISA_MIPS64;
+def DCLO : CountLeading1<"dclo", GPR64Opnd>, CLO_FM<0x25>, ISA_MIPS64;
/// Double Word Swap Bytes/HalfWords
def DSBH : SubwordSwap<"dsbh", GPR64Opnd>, SEB_FM<2, 0x24>, ISA_MIPS64R2;
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index 64244ee1096..7efd34db990 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -357,10 +357,11 @@ MipsTargetLowering::MipsTargetLowering(MipsTargetMachine &TM)
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i16, Expand);
}
- if (!Subtarget->hasBitCount()) {
+ // MIPS16 lacks MIPS32's clz and clo instructions.
+ if (!Subtarget->hasMips32() || Subtarget->inMips16Mode())
setOperationAction(ISD::CTLZ, MVT::i32, Expand);
+ if (!Subtarget->hasMips64())
setOperationAction(ISD::CTLZ, MVT::i64, Expand);
- }
if (!Subtarget->hasMips32r2())
setOperationAction(ISD::BSWAP, MVT::i32, Expand);
diff --git a/llvm/lib/Target/Mips/MipsInstrInfo.td b/llvm/lib/Target/Mips/MipsInstrInfo.td
index 52a57824e43..af9c9285769 100644
--- a/llvm/lib/Target/Mips/MipsInstrInfo.td
+++ b/llvm/lib/Target/Mips/MipsInstrInfo.td
@@ -146,8 +146,6 @@ def MipsSDR : SDNode<"MipsISD::SDR", SDTStore,
//===----------------------------------------------------------------------===//
// Mips Instruction Predicate Definitions.
//===----------------------------------------------------------------------===//
-def HasBitCount : Predicate<"Subtarget.hasBitCount()">,
- AssemblerPredicate<"FeatureBitCount">;
def HasMips2 : Predicate<"Subtarget.hasMips2()">,
AssemblerPredicate<"FeatureMips2">;
def HasMips3_32 : Predicate<"Subtarget.hasMips3_32()">,
@@ -210,7 +208,9 @@ class GPR_64 { list<Predicate> GPRPredicates = [IsGP64bit]; }
class ISA_MIPS2 { list<Predicate> InsnPredicates = [HasMips2]; }
class ISA_MIPS3 { list<Predicate> InsnPredicates = [HasMips3]; }
+class ISA_MIPS32 { list<Predicate> InsnPredicates = [HasMips32]; }
class ISA_MIPS32R2 { list<Predicate> InsnPredicates = [HasMips32r2]; }
+class ISA_MIPS64 { list<Predicate> InsnPredicates = [HasMips64]; }
class ISA_MIPS64R2 { list<Predicate> InsnPredicates = [HasMips64r2]; }
// The portions of MIPS-III that were also added to MIPS32
@@ -823,13 +823,11 @@ class EffectiveAddress<string opstr, RegisterOperand RO> :
// Count Leading Ones/Zeros in Word
class CountLeading0<string opstr, RegisterOperand RO>:
InstSE<(outs RO:$rd), (ins RO:$rs), !strconcat(opstr, "\t$rd, $rs"),
- [(set RO:$rd, (ctlz RO:$rs))], II_CLZ, FrmR, opstr>,
- AdditionalRequires<[HasBitCount]>;
+ [(set RO:$rd, (ctlz RO:$rs))], II_CLZ, FrmR, opstr>;
class CountLeading1<string opstr, RegisterOperand RO>:
InstSE<(outs RO:$rd), (ins RO:$rs), !strconcat(opstr, "\t$rd, $rs"),
- [(set RO:$rd, (ctlz (not RO:$rs)))], II_CLO, FrmR, opstr>,
- AdditionalRequires<[HasBitCount]>;
+ [(set RO:$rd, (ctlz (not RO:$rs)))], II_CLO, FrmR, opstr>;
// Sign Extend in Register.
class SignExtInReg<string opstr, ValueType vt, RegisterOperand RO,
@@ -1166,8 +1164,8 @@ def SEH : MMRel, SignExtInReg<"seh", i16, GPR32Opnd, II_SEH>,
SEB_FM<0x18, 0x20>, ISA_MIPS32R2;
/// Count Leading
-def CLZ : MMRel, CountLeading0<"clz", GPR32Opnd>, CLO_FM<0x20>;
-def CLO : MMRel, CountLeading1<"clo", GPR32Opnd>, CLO_FM<0x21>;
+def CLZ : MMRel, CountLeading0<"clz", GPR32Opnd>, CLO_FM<0x20>, ISA_MIPS32;
+def CLO : MMRel, CountLeading1<"clo", GPR32Opnd>, CLO_FM<0x21>, ISA_MIPS32;
/// Word Swap Bytes Within Halfwords
def WSBH : MMRel, SubwordSwap<"wsbh", GPR32Opnd>, SEB_FM<2, 0x20>, ISA_MIPS32R2;
diff --git a/llvm/lib/Target/Mips/MipsSubtarget.cpp b/llvm/lib/Target/Mips/MipsSubtarget.cpp
index fa71106f5b8..0596153a652 100644
--- a/llvm/lib/Target/Mips/MipsSubtarget.cpp
+++ b/llvm/lib/Target/Mips/MipsSubtarget.cpp
@@ -81,7 +81,7 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
MipsABI(UnknownABI), IsLittle(little), IsSingleFloat(false),
IsFP64bit(false), IsNaN2008bit(false), IsGP64bit(false), HasVFPU(false),
HasCnMips(false), IsLinux(true), HasMips3_32(false), HasMips4_32(false),
- HasMips4_32r2(false), HasBitCount(false), InMips16Mode(false),
+ HasMips4_32r2(false), InMips16Mode(false),
InMips16HardFloat(Mips16HardFloat), InMicroMipsMode(false), HasDSP(false),
HasDSPR2(false), AllowMixed16_32(Mixed16_32 | Mips_Os16), Os16(Mips_Os16),
HasMSA(false), RM(_RM), OverrideMode(NoOverride), TM(_TM),
@@ -154,9 +154,6 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
// TODO: Investigate the IsLinux check. I suspect it's really checking for
// bare-metal.
UseSmallSection = !IsLinux && (RM == Reloc::Static);
- // set some subtarget specific features
- if (inMips16Mode())
- HasBitCount=false;
}
bool
diff --git a/llvm/lib/Target/Mips/MipsSubtarget.h b/llvm/lib/Target/Mips/MipsSubtarget.h
index 6897133f35a..2da92e61670 100644
--- a/llvm/lib/Target/Mips/MipsSubtarget.h
+++ b/llvm/lib/Target/Mips/MipsSubtarget.h
@@ -88,9 +88,6 @@ protected:
// HasMips4_32r2 - Has the subset of MIPS-IV present in MIPS32r2
bool HasMips4_32r2;
- // HasBitCount - Count leading '1' and '0' bits.
- bool HasBitCount;
-
// InMips16 -- can process Mips16 instructions
bool InMips16Mode;
@@ -208,7 +205,6 @@ public:
}
/// Features related to the presence of specific instructions.
- bool hasBitCount() const { return HasBitCount; }
bool hasExtractInsert() const { return !inMips16Mode() && hasMips32r2(); }
const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
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