1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S < %s -passes=loop-unroll | FileCheck %s 3target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2" 4target triple = "x86_64-unknown-linux-gnu" 5 6define i32 @test() { 7; CHECK-LABEL: @test( 8; CHECK-NEXT: bb: 9; CHECK-NEXT: br label [[BB1:%.*]] 10; CHECK: bb1: 11; CHECK-NEXT: [[TMP:%.*]] = phi i32 [ -147, [[BB:%.*]] ], [ [[TMP14:%.*]], [[BB13:%.*]] ] 12; CHECK-NEXT: br label [[BB2_PEEL_BEGIN:%.*]] 13; CHECK: bb2.peel.begin: 14; CHECK-NEXT: br label [[BB2_PEEL:%.*]] 15; CHECK: bb2.peel: 16; CHECK-NEXT: [[TMP4_PEEL:%.*]] = add nsw i32 undef, [[TMP]] 17; CHECK-NEXT: br label [[BB5_PEEL:%.*]] 18; CHECK: bb5.peel: 19; CHECK-NEXT: [[TMP6_PEEL:%.*]] = icmp eq i32 undef, 33 20; CHECK-NEXT: br i1 [[TMP6_PEEL]], label [[BB7_PEEL:%.*]], label [[BB15_LOOPEXIT2:%.*]] 21; CHECK: bb7.peel: 22; CHECK-NEXT: [[TMP8_PEEL:%.*]] = sub nsw i32 undef, undef 23; CHECK-NEXT: [[TMP9_PEEL:%.*]] = icmp eq i32 [[TMP8_PEEL]], 0 24; CHECK-NEXT: br i1 [[TMP9_PEEL]], label [[BB10_PEEL:%.*]], label [[BB10_PEEL]] 25; CHECK: bb10.peel: 26; CHECK-NEXT: [[TMP11_PEEL:%.*]] = icmp eq i8 undef, 0 27; CHECK-NEXT: br i1 [[TMP11_PEEL]], label [[BB12_PEEL:%.*]], label [[BB17_LOOPEXIT3:%.*]] 28; CHECK: bb12.peel: 29; CHECK-NEXT: br i1 false, label [[BB13]], label [[BB2_PEEL_NEXT:%.*]] 30; CHECK: bb2.peel.next: 31; CHECK-NEXT: br label [[BB2_PEEL_NEXT1:%.*]] 32; CHECK: bb2.peel.next1: 33; CHECK-NEXT: br label [[BB1_PEEL_NEWPH:%.*]] 34; CHECK: bb1.peel.newph: 35; CHECK-NEXT: br label [[BB2:%.*]] 36; CHECK: bb2: 37; CHECK-NEXT: [[TMP3:%.*]] = phi i32 [ [[TMP4_PEEL]], [[BB1_PEEL_NEWPH]] ], [ [[TMP4:%.*]], [[BB12:%.*]] ] 38; CHECK-NEXT: [[TMP4]] = add nsw i32 [[TMP3]], [[TMP]] 39; CHECK-NEXT: br label [[BB5:%.*]] 40; CHECK: bb5: 41; CHECK-NEXT: br i1 undef, label [[BB7:%.*]], label [[BB15_LOOPEXIT:%.*]] 42; CHECK: bb7: 43; CHECK-NEXT: br i1 undef, label [[BB10:%.*]], label [[BB10]] 44; CHECK: bb10: 45; CHECK-NEXT: br i1 undef, label [[BB12]], label [[BB17_LOOPEXIT:%.*]] 46; CHECK: bb12: 47; CHECK-NEXT: br i1 false, label [[BB13_LOOPEXIT:%.*]], label [[BB2]], !llvm.loop [[LOOP0:![0-9]+]] 48; CHECK: bb13.loopexit: 49; CHECK-NEXT: br label [[BB13]] 50; CHECK: bb13: 51; CHECK-NEXT: [[TMP14]] = add nsw i32 [[TMP]], -1 52; CHECK-NEXT: br label [[BB1]] 53; CHECK: bb15.loopexit: 54; CHECK-NEXT: br label [[BB15:%.*]] 55; CHECK: bb15.loopexit2: 56; CHECK-NEXT: br label [[BB15]] 57; CHECK: bb15: 58; CHECK-NEXT: [[TMP16:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 17) [ "deopt"() ] 59; CHECK-NEXT: ret i32 [[TMP16]] 60; CHECK: bb17.loopexit: 61; CHECK-NEXT: br label [[BB17:%.*]] 62; CHECK: bb17.loopexit3: 63; CHECK-NEXT: br label [[BB17]] 64; CHECK: bb17: 65; CHECK-NEXT: [[TMP18:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 6) [ "deopt"() ] 66; CHECK-NEXT: ret i32 [[TMP18]] 67; 68bb: 69 br label %bb1 70 71bb1: ; preds = %bb13, %bb 72 %tmp = phi i32 [ -147, %bb ], [ %tmp14, %bb13 ] 73 br label %bb2 74 75bb2: ; preds = %bb12, %bb1 76 %tmp3 = phi i32 [ undef, %bb1 ], [ %tmp4, %bb12 ] 77 %tmp4 = add nsw i32 %tmp3, %tmp 78 br label %bb5 79 80bb5: ; preds = %bb2 81 %tmp6 = icmp eq i32 undef, 33 82 br i1 %tmp6, label %bb7, label %bb15 83 84bb7: ; preds = %bb5 85 %tmp8 = sub nsw i32 %tmp3, undef 86 %tmp9 = icmp eq i32 %tmp8, 0 87 br i1 %tmp9, label %bb10, label %bb10 88 89bb10: ; preds = %bb7, %bb7 90 %tmp11 = icmp eq i8 undef, 0 91 br i1 %tmp11, label %bb12, label %bb17 92 93bb12: ; preds = %bb10 94 br i1 false, label %bb13, label %bb2 95 96bb13: ; preds = %bb12 97 %tmp14 = add nsw i32 %tmp, -1 98 br label %bb1 99 100bb15: ; preds = %bb5 101 %tmp16 = call i32 (...) @llvm.experimental.deoptimize.i32(i32 17) [ "deopt"() ] 102 ret i32 %tmp16 103 104bb17: ; preds = %bb10 105 %tmp18 = call i32 (...) @llvm.experimental.deoptimize.i32(i32 6) [ "deopt"() ] 106 ret i32 %tmp18 107} 108 109declare i32 @llvm.experimental.deoptimize.i32(...) 110