File: unreachable.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (31 lines) | stat: -rw-r--r-- 910 bytes parent folder | download | duplicates (8) 
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 -passes=licm -verify-memoryssa %s -S | FileCheck %s
; REQUIRES: asserts
; Ensure verification doesn't fail with unreachable blocks.

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-grtev4-linux-gnu"

declare dso_local void @f()

; CHECK-LABEL: @foo
define dso_local void @foo() {
entry:
  br i1 undef, label %if.then, label %if.end

if.then:                                          ; preds = %entry
  br label %try.cont

if.end:                                           ; preds = %entry
; 1 = MemoryDef(liveOnEntry)
  call void @f()
  br label %try.cont

catch:                                            ; No predecessors!
; 2 = MemoryDef(liveOnEntry)
  call void @f()
  br label %try.cont

try.cont:                                         ; preds = %if.end, %catch, %if.then
; 3 = MemoryPhi({if.then,liveOnEntry},{if.end,1},{catch,liveOnEntry})
  ret void
}