forked from OSchip/llvm-project
25 lines
489 B
LLVM
25 lines
489 B
LLVM
; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
|
|
|
|
define void @f() {
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond:
|
|
%phi = phi i1 [ false, %entry ], [ true, %for.body ]
|
|
%select = select i1 %phi, i32 1, i32 2
|
|
br label %for.body
|
|
|
|
for.body:
|
|
switch i32 %select, label %for.cond [
|
|
i32 1, label %return
|
|
i32 2, label %for.body
|
|
]
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: define void @f(
|
|
; CHECK: br label %[[LABEL:.*]]
|
|
; CHECK: br label %[[LABEL]]
|