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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes="loop(invalidate<all>,loop-unroll-and-jam,loop-unroll-and-jam)" -allow-unroll-and-jam -unroll-and-jam-count=4 < %s -S | FileCheck %s
; This test completely unrolls the middle loop out of a 3-deep loop nest.
define i16 @test_it() {
; CHECK-LABEL: define i16 @test_it() {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: br label %[[FOR_COND:.*]]
; CHECK: [[FOR_COND_LOOPEXIT:.*]]:
; CHECK-NEXT: br label %[[FOR_COND]]
; CHECK: [[FOR_COND]]:
; CHECK-NEXT: br label %[[DO_BODY2:.*]]
; CHECK: [[DO_BODY2]]:
; CHECK-NEXT: br label %[[WHILE_COND3:.*]]
; CHECK: [[WHILE_COND3]]:
; CHECK-NEXT: br i1 true, label %[[DO_COND:.*]], label %[[WHILE_COND3]]
; CHECK: [[DO_COND]]:
; CHECK-NEXT: br label %[[FOR_COND_LOOPEXIT]]
;
entry:
br label %for.cond
for.cond: ; preds = %do.cond, %entry
br label %do.body2
do.body2: ; preds = %do.cond, %for.cond
br label %while.cond3
while.cond3: ; preds = %while.cond3, %do.body2
br i1 true, label %do.cond, label %while.cond3
do.cond: ; preds = %while.cond3
br i1 true, label %for.cond, label %do.body2
}
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