File: UnsetBitInit.td

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (40 lines) | stat: -rw-r--r-- 708 bytes parent folder | download | duplicates (19) 
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
 
// RUN: llvm-tblgen %s | FileCheck %s
// XFAIL: vg_leak

// CHECK: --- Defs ---

// Test that P and Q are not replaced by ?. TableGen's codegen emitter backend
// relies on keeping variable references like this around to describe the
// structure of instruction encodings.
//
// CHECK: def A {
// CHECK:   bits<8> Inst = { 1, 1, 1, 1, 1, 1, P, Q };
// CHECK:   bits<2> src = { ?, ? };
// CHECK:   bit P = ?;
// CHECK:   bit Q = ?;
// CHECK: }

def A {
  bits<8> Inst;
  bits<2> src;

  bit P;
  bit Q;

  let Inst{7...2} = 0x3f;
  let Inst{1} = P;
  let Inst{0} = Q;

  let P = src{1};
  let Q = src{0};
}

class x {
  field bits<32> A;
}

class y<bits<2> B> : x {
  let A{21...20} = B;
}

def z : y<{0,?}>;