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Add new predicates for the immediate operands.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168451 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jyotsna Verma 2012-11-21 20:05:09 +00:00
parent 26e6ad7b29
commit b546d5a30d
1 changed files with 121 additions and 4 deletions
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125
lib/Target/Hexagon/HexagonOperands.td
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@ -85,6 +85,14 @@ def s32_16s8ImmPred : PatLeaf<(i32 imm), [{
return isShiftedInt<24,16>(v);
}]>;
def s26_6ImmPred : PatLeaf<(i32 imm), [{
// immS26_6 predicate - True if the immediate fits in a 32-bit sign extended
// field.
int64_t v = (int64_t)N->getSExtValue();
return isShiftedInt<26,6>(v);
}]>;
def s16ImmPred : PatLeaf<(i32 imm), [{
// immS16 predicate - True if the immediate fits in a 16-bit sign extended
// field.
@ -155,6 +163,12 @@ def s9ImmPred : PatLeaf<(i32 imm), [{
return isInt<9>(v);
}]>;
def m9ImmPred : PatLeaf<(i32 imm), [{
// m9ImmPred predicate - True if the immediate fits in a 9-bit magnitude
// field. The range of m9 is -255 to 255.
int64_t v = (int64_t)N->getSExtValue();
return isInt<9>(v) && (v != -256);
}]>;
def s8ImmPred : PatLeaf<(i32 imm), [{
// s8ImmPred predicate - True if the immediate fits in a 8-bit sign extended
@ -226,6 +240,12 @@ def u32ImmPred : PatLeaf<(i32 imm), [{
return isUInt<32>(v);
}]>;
def u26_6ImmPred : PatLeaf<(i32 imm), [{
// True if the immediate fits in a 32-bit field and is 6-bit aligned.
int64_t v = (int64_t)N->getSExtValue();
return isShiftedUInt<26,6>(v);
}]>;
def u16ImmPred : PatLeaf<(i32 imm), [{
// u16ImmPred predicate - True if the immediate fits in a 16-bit unsigned
// field.
@ -255,6 +275,12 @@ def u8ImmPred : PatLeaf<(i32 imm), [{
return isUInt<8>(v);
}]>;
def u7StrictPosImmPred : ImmLeaf<i32, [{
// u7StrictPosImmPred predicate - True if the immediate fits in an 7-bit
// unsigned field and is strictly greater than 0.
return isUInt<7>(Imm) && Imm > 0;
}]>;
def u7ImmPred : PatLeaf<(i32 imm), [{
// u7ImmPred predicate - True if the immediate fits in a 8-bit unsigned
// field.
@ -329,11 +355,27 @@ def u1ImmPred : PatLeaf<(i1 imm), [{
return isUInt<1>(v);
}]>;
def m6ImmPred : PatLeaf<(i32 imm), [{
// m6ImmPred predicate - True if the immediate is negative and fits in
// a 6-bit negative number.
def m5BImmPred : PatLeaf<(i32 imm), [{
// m5BImmPred predicate - True if the (char) number is in range -1 .. -31
// and will fit in a 5 bit field when made positive, for use in memops.
// this is specific to the zero extending of a negative by CombineInstr
int8_t v = (int8_t)N->getSExtValue();
return (-31 <= v && v <= -1);
}]>;
def m5HImmPred : PatLeaf<(i32 imm), [{
// m5HImmPred predicate - True if the (short) number is in range -1 .. -31
// and will fit in a 5 bit field when made positive, for use in memops.
// this is specific to the zero extending of a negative by CombineInstr
int16_t v = (int16_t)N->getSExtValue();
return (-31 <= v && v <= -1);
}]>;
def m5ImmPred : PatLeaf<(i32 imm), [{
// m5ImmPred predicate - True if the number is in range -1 .. -31
// and will fit in a 5 bit field when made positive, for use in memops.
int64_t v = (int64_t)N->getSExtValue();
return isInt<6>(v);
return (-31 <= v && v <= -1);
}]>;
//InN means negative integers in [-(2^N - 1), 0]
@ -350,3 +392,78 @@ def nOneImmPred : PatLeaf<(i32 imm), [{
return (-1 == v);
}]>;
def Set5ImmPred : PatLeaf<(i32 imm), [{
// Set5ImmPred predicate - True if the number is in the series of values.
// [ 2^0, 2^1, ... 2^31 ]
// For use in setbit immediate.
uint32_t v = (int32_t)N->getSExtValue();
// Constrain to 32 bits, and then check for single bit.
return ImmIsSingleBit(v);
}]>;
def Clr5ImmPred : PatLeaf<(i32 imm), [{
// Clr5ImmPred predicate - True if the number is in the series of
// bit negated values.
// [ 2^0, 2^1, ... 2^31 ]
// For use in clrbit immediate.
// Note: we are bit NOTing the value.
uint32_t v = ~ (int32_t)N->getSExtValue();
// Constrain to 32 bits, and then check for single bit.
return ImmIsSingleBit(v);
}]>;
def SetClr5ImmPred : PatLeaf<(i32 imm), [{
// predicate - True if the immediate is in range 0..31.
int32_t v = (int32_t)N->getSExtValue();
return (v >= 0 && v <= 31);
}]>;
def Set4ImmPred : PatLeaf<(i32 imm), [{
// Set4ImmPred predicate - True if the number is in the series of values:
// [ 2^0, 2^1, ... 2^15 ].
// For use in setbit immediate.
uint16_t v = (int16_t)N->getSExtValue();
// Constrain to 16 bits, and then check for single bit.
return ImmIsSingleBit(v);
}]>;
def Clr4ImmPred : PatLeaf<(i32 imm), [{
// Clr4ImmPred predicate - True if the number is in the series of
// bit negated values:
// [ 2^0, 2^1, ... 2^15 ].
// For use in setbit and clrbit immediate.
uint16_t v = ~ (int16_t)N->getSExtValue();
// Constrain to 16 bits, and then check for single bit.
return ImmIsSingleBit(v);
}]>;
def SetClr4ImmPred : PatLeaf<(i32 imm), [{
// predicate - True if the immediate is in the range 0..15.
int16_t v = (int16_t)N->getSExtValue();
return (v >= 0 && v <= 15);
}]>;
def Set3ImmPred : PatLeaf<(i32 imm), [{
// Set4ImmPred predicate - True if the number is in the series of values:
// [ 2^0, 2^1, ... 2^7 ].
// For use in setbit immediate.
uint8_t v = (int8_t)N->getSExtValue();
// Constrain to 8 bits, and then check for single bit.
return ImmIsSingleBit(v);
}]>;
def Clr3ImmPred : PatLeaf<(i32 imm), [{
// Clr4ImmPred predicate - True if the number is in the series of
// bit negated values:
// [ 2^0, 2^1, ... 2^7 ].
// For use in setbit and clrbit immediate.
uint8_t v = ~ (int8_t)N->getSExtValue();
// Constrain to 8 bits, and then check for single bit.
return ImmIsSingleBit(v);
}]>;
def SetClr3ImmPred : PatLeaf<(i32 imm), [{
// predicate - True if the immediat is in the range 0..7.
int8_t v = (int8_t)N->getSExtValue();
return (v >= 0 && v <= 7);
}]>;