File: 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 (25 lines) | stat: -rw-r--r-- 464 bytes parent folder | download | duplicates (14)
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(ptr %p) {
entry:
; CHECK-LABEL: @bar
  br label %end

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

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

end:
  ret void
}