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; RUN: llc -mcpu=corei7 -mtriple=x86_64-linux -force-precise-rotation-cost < %s | FileCheck %s
define void @bar() {
; Test that all edges in the loop chain are fall through with profile data.
;
; CHECK-LABEL: bar:
; CHECK: latch
; CHECK: header
; CHECK: if.then
; CHECK: end
entry:
br label %header
header:
call void @e()
%call = call zeroext i1 @a()
br i1 %call, label %if.then, label %latch, !prof !1
if.then:
call void @f()
%call3 = call zeroext i1 @a()
br i1 %call3, label %latch, label %end, !prof !2
latch:
call void @h()
%call2 = call zeroext i1 @a()
br i1 %call2, label %header, label %end, !prof !3
end:
ret void
}
declare zeroext i1 @a()
declare void @e()
declare void @f()
declare void @g()
declare void @h()
!1 = !{!"branch_weights", i32 16, i32 16}
!2 = !{!"branch_weights", i32 97, i32 3}
!3 = !{!"branch_weights", i32 97, i32 3}
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