File: BigEncoder.td

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (57 lines) | stat: -rw-r--r-- 1,518 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
// RUN: llvm-tblgen -gen-emitter -I %p/../../include %s | FileCheck %s

include "llvm/Target/Target.td"

def archInstrInfo : InstrInfo { }

def arch : Target {
    let InstructionSet = archInstrInfo;
}

def  Myi32  : Operand<i32> {
  let DecoderMethod = "DecodeMyi32";
}


let OutOperandList = (outs), Size = 2 in {

def foo : Instruction {
    let InOperandList = (ins i32imm:$factor);
    field bits<65> Inst;
    bits<32> factor;
    let Inst{7-0} = 0xAA;
    let Inst{14-8} = factor{6-0}; // no offset
    let AsmString = "foo  $factor";
    field bits<16> SoftFail = 0;
    }

def bar : Instruction {
    let InOperandList = (ins i32imm:$factor);
    field bits<65> Inst;
    bits<32> factor;
    let Inst{7-0} = 0xBB;
    let Inst{15-8} = factor{10-3}; // offset by 3
    let AsmString = "bar  $factor";
    field bits<16> SoftFail = 0;
    }

def biz : Instruction {
    let InOperandList = (ins i32imm:$factor);
    field bits<65> Inst;
    bits<32> factor;
    let Inst{7-0} = 0xCC;
    let Inst{11-8,15-12} = factor{10-3}; // offset by 3, multipart
    let AsmString = "biz  $factor";
    field bits<16> SoftFail = 0;
    }

}
// CHECK-LABEL: case ::biz: {
// CHECK:      Value.insertBits(op.extractBitsAsZExtValue(4, 3), 12, 4);
// CHECK-NEXT: Value.insertBits(op.extractBitsAsZExtValue(4, 7), 8, 4);

// CHECK-LABEL: case ::foo: {
// CHECK:      Value.insertBits(op.extractBitsAsZExtValue(7, 0), 8, 7);

// CHECK-LABEL: case ::bar: {
// CHECK:      Value.insertBits(op.extractBitsAsZExtValue(8, 3), 8, 8);