1# RUN: llc -O0 -run-pass=legalizer %s -o - | FileCheck %s
2--- |
3  target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
4  target triple = "aarch64--"
5
6  define void @test_anyext_crash() {
7  entry:
8    br label %block2
9
10  block2:
11    %0 = trunc i16 0 to i8
12    %1 = uitofp i8 %0 to double
13    br label %block2
14  }
15
16
17...
18---
19name:            test_anyext_crash
20alignment:       2
21legalized:       false
22registers:
23  - { id: 0, class: _, preferred-register: '' }
24  - { id: 1, class: _, preferred-register: '' }
25  - { id: 2, class: _, preferred-register: '' }
26body:             |
27  bb.1:
28   ; Check we don't crash due to trying to legalize a dead instruction.
29   ; CHECK-LABEL: test_anyext_crash
30   ; CHECK-LABEL: bb.1:
31    successors: %bb.2
32
33    %0(s16) = G_CONSTANT i16 0
34
35  bb.2:
36    successors: %bb.2
37
38    %1(s8) = G_TRUNC %0(s16)
39    %2(s64) = G_UITOFP %1(s8)
40    G_BR %bb.2
41
42...
43