1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S < %s -passes=jump-threading | FileCheck %s 3 4define i1 @test1(i32 %0) #0 { 5; CHECK-LABEL: @test1( 6; CHECK-NEXT: PredPredBB1: 7; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[TMP0:%.*]], 0 8; CHECK-NEXT: [[TMP1:%.*]] = add i32 32, [[TMP0]] 9; CHECK-NEXT: [[INDIRECT_GOTO_DEST:%.*]] = select i1 [[CMP]], ptr blockaddress(@test1, [[PREDBB1:%.*]]), ptr blockaddress(@test1, [[PREDPREDBB2:%.*]]) 10; CHECK-NEXT: indirectbr ptr [[INDIRECT_GOTO_DEST]], [label [[PREDBB1]], label %PredPredBB2] 11; CHECK: PredPredBB2: 12; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i32 [[TMP0]], 1 13; CHECK-NEXT: br i1 [[CMP1]], label [[PREDBB1]], label [[BB2:%.*]] 14; CHECK: PredBB1: 15; CHECK-NEXT: [[NUM:%.*]] = phi i32 [ 0, [[PREDPREDBB1:%.*]] ], [ [[TMP1]], [[PREDPREDBB2]] ] 16; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i32 [[TMP1]], 100 17; CHECK-NEXT: br i1 [[CMP2]], label [[BB1:%.*]], label [[BB2]] 18; CHECK: BB1: 19; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i32 [[NUM]], 0 20; CHECK-NEXT: br i1 [[CMP3]], label [[BB2]], label [[BB3:%.*]] 21; CHECK: BB2: 22; CHECK-NEXT: [[TMP2:%.*]] = or i1 [[CMP]], true 23; CHECK-NEXT: ret i1 [[TMP2]] 24; CHECK: BB3: 25; CHECK-NEXT: ret i1 true 26; 27PredPredBB1: 28 %cmp = icmp ne i32 %0, 0 29 %1 = add i32 32, %0 30 %indirect.goto.dest = select i1 %cmp, ptr blockaddress(@test1, %PredBB1), ptr blockaddress(@test1, %PredPredBB2) 31 indirectbr ptr %indirect.goto.dest, [label %PredBB1, label %PredPredBB2] 32 33PredPredBB2: ; preds = %PredPredBB1 34 %cmp1 = icmp ne i32 %0, 1 35 br i1 %cmp1, label %PredBB1, label %BB2 36 37PredBB1: ; preds = %PredPredBB2, %PredPredBB1 38 %num = phi i32 [ 0, %PredPredBB1 ], [ %1, %PredPredBB2 ] 39 %cmp2 = icmp eq i32 %1, 100 40 br i1 %cmp2, label %BB1, label %BB2 41 42BB1: ; preds = %PredBB1 43 %cmp3 = icmp eq i32 %num, 0 44 br i1 %cmp3, label %BB2, label %BB3 45 46BB2: ; preds = %BB1, %PredBB1, %PredPredBB2 47 %2 = or i1 %cmp, true 48 ret i1 %2 49 50BB3: ; preds = %BB1 51 ret i1 true 52} 53 54attributes #0 = { nounwind } 55