File: unreachable.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (25 lines) | stat: -rw-r--r-- 467 bytes parent folder | download | duplicates (4) 
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
 
; RUN: opt -passes=print-predicateinfo < %s 2>&1 | FileCheck %s

declare void @foo()
declare void @llvm.assume(i1)

define void @bar(i32* %p) {
entry:
; CHECK-LABEL: @bar
  br label %end

unreachable1:
  %v1 = load i32, i32* %p, align 4
  %c1 = icmp eq i32 %v1, 0
  call void @llvm.assume(i1 %c1)
  br label %unreachable2

unreachable2:
  %v2 = load i32, i32* %p, align 4
  %c2 = icmp eq i32 %v2, 0
  call void @llvm.assume(i1 %c2)
  br label %end

end:
  ret void
}