File: indirectbr-backedge.ll

package info (click to toggle)
llvm-3.0 3.0-10
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 75,412 kB
  • sloc: cpp: 468,043; asm: 109,345; ansic: 13,782; sh: 12,935; ml: 4,716; python: 4,351; perl: 2,096; makefile: 1,905; pascal: 1,578; exp: 389; xml: 283; lisp: 187; csh: 117
file content (35 lines) | stat: -rw-r--r-- 1,039 bytes parent folder | download | duplicates (29)
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
; RUN: opt -loop-simplify -S < %s | FileCheck %s

; LoopSimplify shouldn't split loop backedges that use indirectbr.

; CHECK: bb1:                                              ; preds = %bb5, %bb
; CHECK-NEXT: indirectbr

; CHECK: bb5:                                              ; preds = %bb1
; CHECK-NEXT: br label %bb1{{$}}

define void @foo(i8* %p) nounwind {
bb:
  br label %bb1

bb1:                                              ; preds = %bb5, %bb1, %bb
  indirectbr i8* %p, [label %bb6, label %bb7, label %bb1, label %bb2, label %bb3, label %bb5, label %bb4]

bb2:                                              ; preds = %bb1
  ret void

bb3:                                              ; preds = %bb1
  ret void

bb4:                                              ; preds = %bb1
  ret void

bb5:                                              ; preds = %bb1
  br label %bb1

bb6:                                              ; preds = %bb1
  ret void

bb7:                                              ; preds = %bb1
  ret void
}