File: bb-unreachable-from-entry.ll

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 (29 lines) | stat: -rw-r--r-- 478 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
27
28
29
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S < %s -jump-threading | FileCheck %s

define void @foo() {
; CHECK-LABEL: @foo(
; CHECK-NEXT:  exit2:
; CHECK-NEXT:    ret void
;
entry:
  br label %bb1

entry2:
  br label %bb1

bb1:
  %a0 = phi i32 [ undef, %entry2 ], [ 0, %entry ]
  %b = icmp ne i32 %a0, 0
  br i1 %b, label %bb2, label %exit2

bb2:
  br label %exit1

exit1:
  %a1 = phi i32 [ %a0, %bb2 ]
  ret void

exit2:
  ret void
}