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// RUN: llvm-tblgen -gen-disassembler -I %p/../../include %s | \
// RUN: FileCheck %s --check-prefix=DECODER
// RUN: llvm-tblgen -gen-disassembler --suppress-per-hwmode-duplicates=O2 -I \
// RUN: %p/../../include %s | FileCheck %s --check-prefix=DECODER-SUPPRESS
// Test duplicate table suppression for per-HwMode decoders.
include "llvm/Target/Target.td"
def archInstrInfo : InstrInfo { }
def arch : Target {
let InstructionSet = archInstrInfo;
}
def Myi32 : Operand<i32> {
let DecoderMethod = "DecodeMyi32";
}
def HasA : Predicate<"Subtarget->hasA()">;
def HasB : Predicate<"Subtarget->hasB()">;
def ModeA : HwMode<"+a", [HasA]>;
def ModeB : HwMode<"+b", [HasB]>;
def fooTypeEncA : InstructionEncoding {
let Size = 4;
field bits<32> SoftFail = 0;
bits<32> Inst;
bits<8> factor;
let Inst{7...0} = factor;
let Inst{3...2} = 0b11;
let Inst{1...0} = 0b00;
}
def fooTypeEncB : InstructionEncoding {
let Size = 4;
field bits<32> SoftFail = 0;
bits<32> Inst;
bits<8> factor;
let Inst{15...8} = factor;
let Inst{1...0} = 0b11;
}
let OutOperandList = (outs) in {
def foo : Instruction {
let InOperandList = (ins i32imm:$factor);
let EncodingInfos = EncodingByHwMode<
[ModeA, ModeB], [fooTypeEncA, fooTypeEncB]
>;
let AsmString = "foo $factor";
}
// Encoding not overridden, same namespace:
// In the default case, this instruction is duplicated into both ModeA and
// ModeB decoder tables.
// In the suppressed case, this instruction appears in a single decoder table.
def bar: Instruction {
let InOperandList = (ins i32imm:$factor);
let Size = 4;
bits<32> Inst;
bits<32> SoftFail;
bits<8> factor;
let Inst{31...24} = factor;
let Inst{1...0} = 0b10;
let AsmString = "bar $factor";
}
def baz : Instruction {
let InOperandList = (ins i32imm:$factor);
bits<32> Inst;
let EncodingInfos = EncodingByHwMode<
[ModeB], [fooTypeEncA]
>;
let AsmString = "foo $factor";
}
// Encoding not overridden, different namespace:
// In the default case, this instruction is duplicated into two Alt decoder
// tables (ModeA and ModeB).
// In the suppressed case, this instruction appears in a single decoder table.
def unrelated: Instruction {
let DecoderNamespace = "Alt";
let InOperandList = (ins i32imm:$factor);
let Size = 4;
bits<32> Inst;
bits<32> SoftFail;
bits<8> factor;
let Inst{31...24} = factor;
let Inst{1...0} = 0b10;
let AsmString = "unrelated $factor";
}
}
// DECODER-LABEL: DecoderTableAlt_ModeA32[] =
// DECODER-DAG: Opcode: unrelated
// DECODER-LABEL: DecoderTableAlt_ModeB32[] =
// DECODER-DAG: Opcode: unrelated
// DECODER-LABEL: DecoderTable_ModeA32[] =
// DECODER-DAG: Opcode: fooTypeEncA:foo
// DECODER-DAG: Opcode: bar
// DECODER-LABEL: DecoderTable_ModeB32[] =
// DECODER-DAG: Opcode: fooTypeEncB:foo
// DECODER-DAG: Opcode: fooTypeEncA:baz
// DECODER-DAG: Opcode: bar
// DECODER-SUPPRESS-LABEL: DecoderTable32[] =
// DECODER-SUPPRESS-DAG: Opcode: bar
// DECODER-SUPPRESS-LABEL: DecoderTableAlt32[] =
// DECODER-SUPPRESS-DAG: Opcode: unrelated
// DECODER-SUPPRESS-LABEL: DecoderTable_ModeA32[] =
// DECODER-SUPPRESS-DAG: Opcode: fooTypeEncA:foo
// DECODER-SUPPRESS-NOT: Opcode: bar
// DECODER-SUPPRESS-LABEL: DecoderTable_ModeB32[] =
// DECODER-SUPPRESS-DAG: Opcode: fooTypeEncB:foo
// DECODER-SUPPRESS-DAG: Opcode: fooTypeEncA:baz
// DECODER-SUPPRESS-NOT: Opcode: bar
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