42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; RUN: opt < %s -S -simple-loop-unswitch -verify-loop-info -verify-dom-info | FileCheck %s
|
|
; PR12343: -simple-loop-unswitch crash on indirect branch
|
|
|
|
; CHECK: %0 = icmp eq i64 undef, 0
|
|
; CHECK-NEXT: br i1 %0, label %"5", label %"4"
|
|
|
|
; CHECK: "5": ; preds = %entry
|
|
; CHECK-NEXT: br label %"16"
|
|
|
|
; CHECK: "16": ; preds = %"22", %"5"
|
|
; CHECK-NEXT: indirectbr i8* undef, [label %"22", label %"33"]
|
|
|
|
; CHECK: "22": ; preds = %"16"
|
|
; CHECK-NEXT: br i1 %0, label %"16", label %"26"
|
|
|
|
; CHECK: "26": ; preds = %"22"
|
|
; CHECK-NEXT: unreachable
|
|
|
|
define void @foo() {
|
|
entry:
|
|
%0 = icmp eq i64 undef, 0
|
|
br i1 %0, label %"5", label %"4"
|
|
|
|
"4": ; preds = %entry
|
|
unreachable
|
|
|
|
"5": ; preds = %entry
|
|
br label %"16"
|
|
|
|
"16": ; preds = %"22", %"5"
|
|
indirectbr i8* undef, [label %"22", label %"33"]
|
|
|
|
"22": ; preds = %"16"
|
|
br i1 %0, label %"16", label %"26"
|
|
|
|
"26": ; preds = %"22"
|
|
unreachable
|
|
|
|
"33": ; preds = %"16"
|
|
unreachable
|
|
}
|