File: 2011-03-08-UnreachableUse.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (31 lines) | stat: -rw-r--r-- 1,006 bytes parent folder | download | duplicates (21)
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
; RUN: opt < %s -simplifycfg -S | FileCheck %s
; PR9420

; Note that the crash in PR9420 test is sensitive to the ordering of
; the transformations done by SimplifyCFG, so this test is likely to rot
; quickly.

define noalias i8* @func_29() nounwind {
; CHECK: entry:
; CHECK-NEXT: unreachable
entry:
  br label %for.cond

for.cond:                                         ; preds = %for.inc38, %entry
  %p_34.addr.0 = phi i16 [ 1, %entry ], [ %conv40, %for.inc38 ]
  br label %for.cond1

for.cond1:                                        ; preds = %for.inc29, %for.cond
  %p_32.addr.0 = phi i1 [ true, %for.cond ], [ true, %for.inc29 ]
  br i1 %p_32.addr.0, label %for.body8, label %for.inc38

for.body8:                                        ; preds = %for.cond1
  unreachable

for.inc29:                                        ; preds = %for.cond17
  br label %for.cond1

for.inc38:                                        ; preds = %for.end32
  %conv40 = add i16 %p_34.addr.0, 1
  br label %for.cond
}