1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3 2; RUN: opt -S -passes='print<scalar-evolution>,loop(loop-unroll-full,indvars)' < %s 2>/dev/null | FileCheck %s 3@g = constant [5 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4] 4 5declare void @use(i32) 6 7define void @test() { 8; CHECK-LABEL: define void @test() { 9; CHECK-NEXT: entry: 10; CHECK-NEXT: br label [[LOOP:%.*]] 11; CHECK: loop: 12; CHECK-NEXT: br label [[LOOP2:%.*]] 13; CHECK: loop2: 14; CHECK-NEXT: br i1 false, label [[LOOP2]], label [[LOOP_LATCH:%.*]], !llvm.loop [[LOOP0:![0-9]+]] 15; CHECK: loop.latch: 16; CHECK-NEXT: call void @use(i32 3) 17; CHECK-NEXT: br label [[LOOP2_1:%.*]] 18; CHECK: loop2.1: 19; CHECK-NEXT: br i1 false, label [[LOOP2_1]], label [[LOOP_LATCH_1:%.*]], !llvm.loop [[LOOP0]] 20; CHECK: loop.latch.1: 21; CHECK-NEXT: call void @use(i32 4) 22; CHECK-NEXT: ret void 23; 24entry: 25 br label %loop 26 27loop: 28 %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ] 29 %iv.next = add i64 %iv, 1 30 br label %loop2 31 32loop2: 33 %iv2 = phi i64 [ 0, %loop ], [ %iv2.next, %loop2 ] 34 %iv2.next = add i64 %iv2, 1 35 %idx = add i64 %iv, %iv2 36 %gep = getelementptr i32, ptr @g, i64 %idx 37 %load = load i32, ptr %gep 38 %cmp2 = icmp ne i64 %iv2, 3 39 br i1 %cmp2, label %loop2, label %loop.latch, !llvm.loop !0 40 41loop.latch: 42 %load.lcssa = phi i32 [ %load, %loop2 ] 43 call void @use(i32 %load) 44 %cmp = icmp ne i64 %iv, 1 45 br i1 %cmp, label %loop, label %exit 46 47exit: 48 ret void 49} 50 51!0 = distinct !{!0, !1} 52!1 = !{!"llvm.loop.unroll.disable", i1 true} 53