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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=loop-flatten -verify-scev -S < %s | FileCheck %s3;4define void @sum_2d(ptr %p) {5; CHECK-LABEL: @sum_2d(6; CHECK-NEXT: entry:7; CHECK-NEXT: [[FLATTEN_TRIPCOUNT:%.*]] = mul i16 1, 18; CHECK-NEXT: br label [[OUTER:%.*]]9; CHECK: outer:10; CHECK-NEXT: [[SUM_04:%.*]] = phi i16 [ 0, [[ENTRY:%.*]] ], [ [[DOTLCSSA:%.*]], [[OUTER_LATCH:%.*]] ]11; CHECK-NEXT: [[OUTER_IV:%.*]] = phi i16 [ 0, [[ENTRY]] ], [ [[OUTER_IV_NEXT:%.*]], [[OUTER_LATCH]] ]12; CHECK-NEXT: br label [[INNER:%.*]]13; CHECK: inner:14; CHECK-NEXT: [[SUM_12:%.*]] = phi i16 [ [[SUM_04]], [[OUTER]] ]15; CHECK-NEXT: [[INNER_IV:%.*]] = phi i16 [ 0, [[OUTER]] ]16; CHECK-NEXT: [[TMP0:%.*]] = load i16, ptr [[P:%.*]], align 117; CHECK-NEXT: [[INNER_IV_NEXT:%.*]] = add nsw i16 [[INNER_IV]], 118; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i16 [[INNER_IV]], 019; CHECK-NEXT: br label [[OUTER_LATCH]]20; CHECK: outer.latch:21; CHECK-NEXT: [[DOTLCSSA]] = phi i16 [ [[TMP0]], [[INNER]] ]22; CHECK-NEXT: [[OUTER_IV_NEXT]] = add nsw i16 [[OUTER_IV]], 123; CHECK-NEXT: [[CMP:%.*]] = icmp slt i16 [[OUTER_IV_NEXT]], [[FLATTEN_TRIPCOUNT]]24; CHECK-NEXT: br i1 [[CMP]], label [[OUTER]], label [[EXIT:%.*]]25; CHECK: exit:26; CHECK-NEXT: ret void27;28entry:29 br label %outer30 31outer: ; preds = %outer.latch, %entry32 %sum.04 = phi i16 [ 0, %entry ], [ %0, %outer.latch ]33 %outer.iv = phi i16 [ 0, %entry ], [ %outer.iv.next, %outer.latch ]34 br label %inner35 36inner: ; preds = %inner, %outer37 %sum.12 = phi i16 [ %sum.04, %outer ], [ %0, %inner ]38 %inner.iv = phi i16 [ 0, %outer ], [ %inner.iv.next, %inner ]39 %0 = load i16, ptr %p, align 140 %inner.iv.next = add nsw i16 %inner.iv, 141 %cmp2 = icmp slt i16 %inner.iv, 042 br i1 %cmp2, label %inner, label %outer.latch43 44outer.latch: ; preds = %inner45 %outer.iv.next = add nsw i16 %outer.iv, 146 %cmp = icmp slt i16 %outer.iv.next, 047 br i1 %cmp, label %outer, label %exit48 49exit: ; preds = %outer.latch50 ret void51}52