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; RUN: opt < %s -passes='function(break-crit-edges,loop-simplify),loop-extract' -S | FileCheck %s
; This function is just a minimal wrapper around a loop and should not be extracted.
define void @test() {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label %loop
; CHECK: loop:
; CHECK-NEXT: %index = phi i32 [ 0, %entry ], [ %next, %loop.loop_crit_edge ]
; CHECK-NEXT: call void @foo()
; CHECK-NEXT: %next = add nsw i32 %index, -1
; CHECK-NEXT: %repeat = icmp sgt i32 %index, 1
; CHECK-NEXT: br i1 %repeat, label %loop.loop_crit_edge, label %exit
; CHECK: loop.loop_crit_edge:
; CHECK-NEXT: br label %loop
; CHECK: exit:
; CHECK-NEXT: ret void
entry:
br label %loop
loop: ; preds = %loop, %entry
%index = phi i32 [ 0, %entry ], [ %next, %loop ]
call void @foo()
%next = add nsw i32 %index, -1
%repeat = icmp sgt i32 %index, 1
br i1 %repeat, label %loop, label %exit
exit: ; preds = %loop
ret void
}
declare void @foo()
; CHECK-NOT: define
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