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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -o - -structurizecfg < %s | FileCheck %s
define void @test1(i1 %arg) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: %arg.inv = xor i1 %arg, true
; CHECK-NEXT: br label %loop
; CHECK: Flow:
; CHECK-NEXT: br label %Flow1
; CHECK: loop:
; CHECK-NEXT: %ctr = phi i32 [ 0, %entry ], [ %0, %Flow1 ]
; CHECK-NEXT: %ctr.next = add i32 %ctr, 1
; CHECK-NEXT: br i1 %arg.inv, label %loop.a, label %Flow1
; CHECK: loop.a:
; CHECK-NEXT: br i1 %arg.inv, label %loop.b, label %Flow
; CHECK: loop.b:
; CHECK-NEXT: br label %Flow
; CHECK: Flow1:
; CHECK-NEXT: %0 = phi i32 [ %ctr.next, %Flow ], [ undef, %loop ]
; CHECK-NEXT: %1 = phi i1 [ false, %Flow ], [ true, %loop ]
; CHECK-NEXT: br i1 %1, label %exit, label %loop
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
br label %loop
loop:
%ctr = phi i32 [ 0, %entry ], [ %ctr.next, %loop.a ], [ %ctr.next, %loop.b ]
%ctr.next = add i32 %ctr, 1
br i1 %arg, label %exit, label %loop.a
loop.a:
br i1 %arg, label %loop, label %loop.b
loop.b:
br label %loop
exit:
ret void
}
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