1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=loop-vectorize -S | FileCheck %s 3 4target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 5 6; Test case based on reproducer for 7; http://bugs.chromium.org/p/oss-fuzz/issues/detail?id=6477 8 9define void @test1(i32 %n) #0 { 10; CHECK-LABEL: @test1( 11; CHECK-NEXT: br i1 false, label [[DOTLR_PH_PREHEADER:%.*]], label [[DOT_CRIT_EDGE:%.*]] 12; CHECK: .lr.ph.preheader: 13; CHECK-NEXT: br label [[DOTLR_PH:%.*]] 14; CHECK: .lr.ph: 15; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[DOTLR_PH]] ], [ 0, [[DOTLR_PH_PREHEADER]] ] 16; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add i64 [[INDVARS_IV]], 1 17; CHECK-NEXT: br i1 true, label [[DOT_CRIT_EDGE_LOOPEXIT:%.*]], label [[DOTLR_PH]], !llvm.loop !0 18; CHECK: ._crit_edge.loopexit: 19; CHECK-NEXT: br label [[DOT_CRIT_EDGE]] 20; CHECK: ._crit_edge: 21; CHECK-NEXT: ret void 22; 23 br i1 false, label %.lr.ph, label %._crit_edge 24 25.lr.ph: ; preds = %.lr.ph, %0 26 %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ] 27 %indvars.iv.next = add i64 %indvars.iv, 1 28 br i1 true, label %._crit_edge, label %.lr.ph, !llvm.loop !0 29 30._crit_edge: ; preds = %.lr.ph, %0 31 ret void 32} 33 34!0 = distinct !{!0, !1} 35!1 = !{!"llvm.loop.interleave.count", i32 2} 36