xref: /llvm-project/llvm/test/CodeGen/AArch64/get_vector_length.ll (revision c5e6c886aabb36ab66b4ed835da243c2a3455ade) 
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
2; RUN: llc < %s -mtriple=aarch64-linux-gnu -mattr=+sve | FileCheck %s
3
4declare i32 @llvm.experimental.get.vector.length.i16(i16, i32, i1)
5declare i32 @llvm.experimental.get.vector.length.i32(i32, i32, i1)
6declare i32 @llvm.experimental.get.vector.length.i64(i64, i32, i1)
7
8define i32 @vector_length_i16(i16 zeroext %tc) {
9; CHECK-LABEL: vector_length_i16:
10; CHECK:       // %bb.0:
11; CHECK-NEXT:    cntd x8
12; CHECK-NEXT:    cmp w0, w8
13; CHECK-NEXT:    csel w0, w0, w8, lo
14; CHECK-NEXT:    ret
15  %a = call i32 @llvm.experimental.get.vector.length.i16(i16 %tc, i32 2, i1 true)
16  ret i32 %a
17}
18
19define i32 @vector_length_i32(i32 zeroext %tc) {
20; CHECK-LABEL: vector_length_i32:
21; CHECK:       // %bb.0:
22; CHECK-NEXT:    cntd x8
23; CHECK-NEXT:    cmp w0, w8
24; CHECK-NEXT:    csel w0, w0, w8, lo
25; CHECK-NEXT:    ret
26  %a = call i32 @llvm.experimental.get.vector.length.i32(i32 %tc, i32 2, i1 true)
27  ret i32 %a
28}
29
30define i32 @vector_length_i64(i64 %tc) {
31; CHECK-LABEL: vector_length_i64:
32; CHECK:       // %bb.0:
33; CHECK-NEXT:    cntd x8
34; CHECK-NEXT:    cmp x0, x8
35; CHECK-NEXT:    csel x0, x0, x8, lo
36; CHECK-NEXT:    // kill: def $w0 killed $w0 killed $x0
37; CHECK-NEXT:    ret
38  %a = call i32 @llvm.experimental.get.vector.length.i64(i64 %tc, i32 2, i1 true)
39  ret i32 %a
40}
41