File: stale-loop-info.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (48 lines) | stat: -rw-r--r-- 1,607 bytes parent folder | download | duplicates (5)
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
40
41
42
43
44
45
46
47
48
; RUN: opt -passes='require<loops>,newgvn' -S < %s | FileCheck %s

; This used to fail with ASAN enabled and if for some reason LoopInfo remained
; available during GVN.  In this case BasicAA will use LI but
; MergeBlockIntoPredecessor in GVN failed to update LI.

target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"

%struct.wibble.1028 = type { i32, i32, %struct.barney.881 }
%struct.barney.881 = type { %struct.zot.882 }
%struct.zot.882 = type { [64 x i8] }

; Function Attrs: argmemonly
declare void @snork.1(ptr) local_unnamed_addr #0

define hidden zeroext i1 @eggs(ptr %arg, i1 %arg2) unnamed_addr align 2 {
bb:
  br i1 %arg2, label %bb14, label %bb3

bb3:                                              ; preds = %bb
  %tmp = getelementptr inbounds %struct.wibble.1028, ptr %arg, i64 0, i32 2, i32 0, i32 0, i64 0
  br label %bb6

bb6:                                              ; preds = %bb12, %bb3
  br label %bb7

bb7:                                              ; preds = %bb6
  br i1 undef, label %bb11, label %bb8

bb8:                                              ; preds = %bb7
  %tmp9 = load ptr, ptr %tmp, align 8
; CHECK: %tmp9 = load ptr, ptr %tmp, align 8
  br label %bb12

bb11:                                             ; preds = %bb7
  br label %bb12

bb12:                                             ; preds = %bb11, %bb8
  %tmp13 = phi ptr [ %tmp, %bb11 ], [ %tmp9, %bb8 ]
  call void @snork.1(ptr %tmp13) #1
  br label %bb6

bb14:                                             ; preds = %bb
  ret i1 false
}

attributes #0 = { argmemonly }
attributes #1 = { nounwind }