File: switch-unreachable.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (26 lines) | stat: -rw-r--r-- 627 bytes parent folder | download | duplicates (9) 
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
 
; RUN: llc < %s -mtriple=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck %s

; This testcase was discovered in si-annotate-cf.ll, where none of the
; RUN lines was actually exercising it. See that files git log for its
; history.

; FIXME: should emit s_endpgm
; CHECK-LABEL: {{^}}switch_unreachable:
; CHECK-NOT: s_endpgm
; CHECK: .Lfunc_end
define amdgpu_kernel void @switch_unreachable(ptr addrspace(1) %g, ptr addrspace(3) %l, i32 %x) nounwind {
centry:
  switch i32 %x, label %sw.default [
    i32 0, label %sw.bb
    i32 60, label %sw.bb
  ]

sw.bb:
  unreachable

sw.default:
  unreachable

sw.epilog:
  ret void
}