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; RUN: llc -mtriple=i686-linux < %s | FileCheck %s
define i32 @bar(i32 %count) {
; Test checks that basic block backedge2 is not moved before header,
; because it can't reduce taken branches.
; Later backedge1 and backedge2 is rotated before loop header.
; CHECK-LABEL: bar
; CHECK: %.entry
; CHECK: %.header
; CHECK: %.backedge1
; CHECK: %.backedge2
; CHECK: %.exit
.entry:
%c = shl nsw i32 %count, 2
br label %.header
.header:
%val1 = call i32 @foo()
%cond1 = icmp sgt i32 %val1, 1
br i1 %cond1, label %.exit, label %.backedge1
.backedge1:
%val2 = call i32 @foo()
%cond2 = icmp sgt i32 %val2, 1
br i1 %cond2, label %.header, label %.backedge2
.backedge2:
%val3 = call i32 @foo()
br label %.header
.exit:
ret i32 %c
}
declare i32 @foo()
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