File: callbr.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (39 lines) | stat: -rw-r--r-- 1,218 bytes parent folder | download | duplicates (3)
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
32
33
34
35
36
37
38
39
; RUN: not llvm-diff %s %s 2>&1 | FileCheck %s

define void @foo() {
entry:
  callbr void asm sideeffect "", "X,X,~{dirflag},~{fpsr},~{flags}"(i8* blockaddress(@foo, %return), i8* blockaddress(@foo, %t_no))
          to label %asm.fallthrough [label %return, label %t_no]

asm.fallthrough:
  br label %return

t_no:
  br label %return

return:
  ret void
}

; CHECK:      in function bar:
; CHECK-NOT:  in function foo:
; CHECK-NEXT:  in block %entry:
; CHECK-NEXT:    >   callbr void asm sideeffect "", "X,X,~{dirflag},~{fpsr},~{flags}"(i8* blockaddress(@foo, %t_no), i8* blockaddress(@foo, %return))
; CHECK-NEXT:          to label %asm.fallthrough [label %return, label %t_no]
; CHECK-NEXT:    <   callbr void asm sideeffect "", "X,X,~{dirflag},~{fpsr},~{flags}"(i8* blockaddress(@foo, %t_no), i8* blockaddress(@foo, %return))
; CHECK-NEXT:          to label %asm.fallthrough [label %return, label %t_no]

define void @bar() {
entry:
  callbr void asm sideeffect "", "X,X,~{dirflag},~{fpsr},~{flags}"(i8* blockaddress(@foo, %t_no), i8* blockaddress(@foo, %return))
          to label %asm.fallthrough [label %return, label %t_no]

asm.fallthrough:
  br label %return

t_no:
  br label %return

return:
  ret void
}