--- /dev/null
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -loop-unroll -S %s | FileCheck %s
+
+; Loop with multiple exiting blocks, where the header exits but not the latch,
+; e.g. because it has not been rotated.
+define i16 @full_unroll_multiple_exiting_blocks(i16* %A, i16 %x, i16 %y) {
+; CHECK-LABEL: @full_unroll_multiple_exiting_blocks(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: br label [[HEADER:%.*]]
+; CHECK: header:
+; CHECK-NEXT: [[RES:%.*]] = phi i16 [ 123, [[ENTRY:%.*]] ], [ [[RES_NEXT:%.*]], [[LATCH:%.*]] ]
+; CHECK-NEXT: [[I_0:%.*]] = phi i64 [ 0, [[ENTRY]] ], [ [[INC9:%.*]], [[LATCH]] ]
+; CHECK-NEXT: [[PTR:%.*]] = getelementptr inbounds i16, i16* [[A:%.*]], i64 [[I_0]]
+; CHECK-NEXT: [[LV:%.*]] = load i16, i16* [[PTR]], align 2
+; CHECK-NEXT: [[RES_NEXT]] = add i16 [[RES]], [[LV]]
+; CHECK-NEXT: [[CMP:%.*]] = icmp ult i64 [[I_0]], 3
+; CHECK-NEXT: br i1 [[CMP]], label [[EXITING_1:%.*]], label [[EXIT:%.*]]
+; CHECK: exiting.1:
+; CHECK-NEXT: [[EC_1:%.*]] = icmp eq i16 [[LV]], [[X:%.*]]
+; CHECK-NEXT: br i1 [[EC_1]], label [[EXIT]], label [[EXITING_2:%.*]]
+; CHECK: exiting.2:
+; CHECK-NEXT: [[EC_2:%.*]] = icmp eq i16 [[LV]], [[Y:%.*]]
+; CHECK-NEXT: br i1 [[EC_2]], label [[EXIT]], label [[LATCH]]
+; CHECK: latch:
+; CHECK-NEXT: [[INC9]] = add i64 [[I_0]], 1
+; CHECK-NEXT: br label [[HEADER]]
+; CHECK: exit:
+; CHECK-NEXT: [[RES_LCSSA:%.*]] = phi i16 [ [[RES_NEXT]], [[HEADER]] ], [ 0, [[EXITING_1]] ], [ 1, [[EXITING_2]] ]
+; CHECK-NEXT: ret i16 [[RES_LCSSA]]
+;
+entry:
+ br label %header
+
+header:
+ %res = phi i16 [ 123, %entry ], [ %res.next, %latch ]
+ %i.0 = phi i64 [ 0, %entry ], [ %inc9, %latch ]
+ %ptr = getelementptr inbounds i16, i16* %A, i64 %i.0
+ %lv = load i16, i16* %ptr
+ %res.next = add i16 %res, %lv
+ %cmp = icmp ult i64 %i.0, 3
+ br i1 %cmp, label %exiting.1, label %exit
+
+exiting.1:
+ %ec.1 = icmp eq i16 %lv, %x
+ br i1 %ec.1, label %exit, label %exiting.2
+
+exiting.2:
+ %ec.2 = icmp eq i16 %lv, %y
+ br i1 %ec.2, label %exit, label %latch
+
+latch:
+ %inc9 = add i64 %i.0, 1
+ br label %header
+
+exit:
+ %res.lcssa = phi i16 [ %res.next, %header ], [ 0, %exiting.1 ], [ 1, %exiting.2 ]
+ ret i16 %res.lcssa
+}